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Anatomy > Upper Limb Part 2 > Flashcards

Upper Limb Part 2 Flashcards

1
Q

What are the sections of the brachial pelux

A 
Roots 
Trunks 
Divisions 
Cords  
Branches
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2
Q

What is a Root

A

the nerves

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3
Q

What is a Trunk

A

superior , middle, inferior

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4
Q

What is a Division

A

anterior and posterior

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5
Q

What is a Cord

A

lateral, posterior and medial

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6
Q

What is a branch

A

these are where the main nn. are coming off

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7
Q

dorsal scapular n.

A

c5, 4

rhomboid, levator

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8
Q

Long thoracic n

A

C5, 6, 7

serratus anterior

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9
Q

Suprascapular n

A

C4,5, 6,

supraspinatus and infaspinatus, should joints

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10
Q

subclavian n.

A

C4, 5, 6

subclavius and the sternoclaviular joint

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11
Q

Where is the erbs point of the brachial pelxus

A

the junction of C5 and C6

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12
Q

Lateral pectoral

A

C5,6,7

pec major

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13
Q

medial pectoral

A

C8, T1

pect minor, pec major

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14
Q

Medial cutaneous nerve of the arm

A

C8, T1

skin of meidla side of arm and proximal forearm

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15
Q

medial cutaneous nerve of forearm

A

C8, T1

skin of medial side of forearm as distal as wrist

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16
Q

Musculocutaneous

A

C5, 6, 7

coracobrachialis, biceps, brachialis, skin of lateral aspet of forearm

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17
Q

Median

A

Lateral root C6, 7
Medial root C8, T1

muscles of anterior forearm and five intrinsic muscles in thenar half of palm and palmar skin

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18
Q

what is the loop between the lat and medial pec n

A

this allow them to connect and send info back and forth

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19
Q

Ulnar

A

C7, 8, T1

flexor carpi ulnaris and ulnar half of flexor digitorum profundus ; most intrinsic muscles of hand; skin of hand medial to axial line of digit 4

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20
Q

Upper subscapular

A

c5

superior portion of subscapularis

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21
Q

lower subscapular

A

C6

inferior portion of subscapularis and teres major

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22
Q

thoracodorsal

A

C6, 7, 8

lats

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23
Q

axillary

A

C5, 6

glenohumeral joints, teres minor and delts; along with skin of superolateral arm

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24
Q

radial

A

C5-T1
all muscles of posterior campartment of arm and forearm; skin of posterior and inferolateral arm, posterior forearm and dorsum of hand lateral to axial line of digit 4

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25
Q

What is the arm

A

this extends from the shoulder to elbow

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26
Q

what are the two muscle groups of the arm

A
  • anterior= flexor

- posterior = extension

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27
Q

what is the main action of the arm muscles

A

movement of the elbow and some action at the genohumeral joint

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28
Q

What is the of the arm

A

Humerus

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29
Q

what are some ascepts of the Proximal humerus

A
  • anatomcial neck
  • surgical neck
  • deltoid tuberosity
  • radial groove ( fractures may injure radial nerve)
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30
Q

what does the humerus articulate with

A

scapula ( glenohumeral joint)
radius
ulna

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31
Q

what are some aspects of the distal humerus

A
  • 2 condyles
  • epicondyles ( medial and lateral)
  • conronoid fossa
  • olecranon fossa
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32
Q

what are the 2 condyles of the humerus

A
  • capitulum - articulates with radius

- trochlea- articulates with ulna

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33
Q

where can the coronoid fossa of humerus be found

A

anterior - receives ulnar coronoid process when elbow is bent

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34
Q

where can the olecranon fossa of humerus be found

A

posterior- receives ulnar olecranon process when elbow is straight

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35
Q

what pattern does the cutaneous innervation of he upper limbs follow

A

they follow at developmental pattern.
– the limbs lateral protrusion of the trunk with the 1st digit pointed in the cranail side ( thumb is directed superiorly)

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36
Q

what aspect of the upper limb is innervated by more cranial spinal cord segments?

A

the lateral aspect is innervated by more cranial spinal cords then the medial

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37
Q

what did keegan and garret make

A

they made the dermatome of the body that follows the developmental pattern

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38
Q

what cautaneous nerves of the upper limb are innervated by which nerves

A

the brachial pleux C5-T1 nerves

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39
Q

what nerves go to the shoulder

A

the cervical plexus

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40
Q

what did foerster develop

A

they came up with the idea of segmental dermatomal innervation which they came up with by clinical findings

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41
Q

what are the cutaneous nerves of the upper limb

A
  • supraclavicular nerves
  • superior lateral cutaneouse nerve of the arm
  • inferior lateral cutaneous nerve of arm
  • posterior cutaneous nerve of arm
  • posterior cutaneous nerve of forearm
  • lateral cutaneous nerve of forearm
  • medial cutaneous nerve of forearm
  • medial cutaneous nerve of arm
  • intercostobrachial nerves
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42
Q

What are the spinal nerves of the supraclavicular nerves

A

C3, C4

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43
Q

What is the source of the supraclavicular nerves

A

cervical plexus

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44
Q

What is the course and distribution of the supraclavicular nerves

A

skin over clavicle, platysma and superolateral aspect of pectoralis major

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45
Q

What are the spinal nerves of the superior lateral cutaneouse nerve of the arm

A

C5, 6

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46
Q

What is the source of the superior lateral cutaneouse nerve of the arm

A

terminal branch of axillary nerve

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47
Q

What is the course and distribution of the superior lateral cutaneouse nerve of the arm

A

skin over lower part of deltoid m and on lateral side of midarm

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48
Q

What are the spinal nerves of the inferior lateral cutaneous nerve of arm

A

C5,6

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49
Q

What is the source of the inferior lateral cutaneous nerve of arm

A

radial nerve or posterior cutaneous nerve of arm

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50
Q

What is the course and distribution of the inferior lateral cutaneous nerve of arm

A

skin over inferolateral aspect of arm

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51
Q

What are the spinal nerves of the posterior cutaneous nerve of arm

A

C5-8

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52
Q

What is the source of the posterior cutaneous nerve of arm

A

radial nerve in axilla

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53
Q

What is the course and distribution of the posterior cutaneous nerve of arm

A

skin on posterior arm as far as colecranon

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54
Q

What are the spinal nerves of the posterior cutaneous nerve of forearm

A

C5-8

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55
Q

What is the source of the posterior cutaneous nerve of forearm

A

radial nerve with inferior lateral cutaneous nerve of arm

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56
Q

What is the course and distribution posterior cutaneous nerve of forearm

A

posterior forearm to wrist

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57
Q

What are the spinal nerves of the lateral cutaneous nerve of forearm

A

C6,7

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58
Q

What is the source of the lateral cutaneous nerve of forearm

A

musculocutaneous nerve terminal branch

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59
Q

What is the course and distribution lateral cutaneous nerve of forearm

A

skin of anterolateral forearm to wrist

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60
Q

What are the spinal nerves of the medial cutaneous nerve of forearm

A

C8, T1

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61
Q

What is the source of the medial cutaneous nerve of forearm

A

medial cord of brachial plexus in axilla

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62
Q

What is the course and distribution medial cutaneous nerve of forearm

A

skin of anteromedial aspect to wrist

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63
Q

What are the spinal nerves of the medial cutaneous nerve of arm

A

C8-T2

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64
Q

What is the source of the medial cutaneous nerve of arm

A

medial cord of brachial plexus in axilla

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65
Q

What is the course and distribution medial cutaneous nerve of arm

A

skin of medial aspect of distal arm

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66
Q

What are the spinal nerves of the intercostobrachial nerves

A

T2

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67
Q

What is the source of the intercostobrachial nerves

A

second intercostal nerve ( as its lateral cutaneous branch )

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68
Q

What is the course and distribution intercostobrachial nerves

A

skin of axilla and medial aspect of proximal arm

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69
Q

what is the atypical intercostal nerves

A

the 2nd and 3rd intercostal nn

Called interobrachial n look at the slide for name

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70
Q

what is so speical about the atypical intercostal n

A

that the 2nd intercostal lateral cutaneous branch does not divide into anterior and posterior branch. it emerges from intercostal space by piercing intercostal and serratus anterior mm.

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71
Q

what are the anterior muslces of the arm

A
  • biceps brachii
  • brachialis
  • coracobrachialis
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72
Q

what do all the anterior arm mm. have in common

A

they are have the musculocutaneous n.

and its distal attachment marks nutrients foramen

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73
Q

what are the posterior muscles of the arm

A

triceps brachii

anconeus

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74
Q

what does all the posterior arm mm have in common

A

radial n.

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75
Q

what is the main artery of the arm

A

brachial artery

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76
Q

where does the brachial artery start

A

after the axillary a after the inferior border of T. major m

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77
Q

where does the brachail artery end

A

ends at the cubital fossa sopposite neck of radius
— where it becomes the radial and ulnar aa.

*** could also divide more proximally with the median n running between the radial and ulnar aa. in the arm

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78
Q

what nerves does the brachial artery run with

A

the median and ulnar n then with just the ulnar n.

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79
Q

what are artery found with brachial plexus

A

-anterior and posterior circumflex humeral aa and subscapular a

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80
Q

What are the division of the brachial artery

A
  • deep art of the arm
  • humeral nutrient a
  • ulnar collateral aa
  • unnamed muscular branches
  • terminates into ulnar and radial aa
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81
Q

what does the deep brachial artery divide into

A

divides into the middle collateral a and the radial collateral a

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82
Q

where does the humeral nuterient a enter

A

aroudn the deltoid tuberosity

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83
Q

what does the ulnar collateral aa divide into

A
  • superior ulnar collateral ( runs with ulnar n.)

- inferior ulnar collateral

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84
Q

what are the main superficial veins of the upper limb

A
  • cephalic
  • basilic

** both originate from dorsal venous network on dorsum of hand

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85
Q

where is the cephalic v. found

A

on the anterolateral surface

86
Q

where does the cephalic V. emptie into

A

the axillary v

87
Q

where is the bascilic v found

A

medial side

88
Q

where does the basilic v empty into

A

joins the brachial v to form the axillary v.

89
Q

where is the median antebrachial v. found

A

middle anterior forearm

runs into the basilic v.

90
Q

Where does the brachial V start

A

begins at elbow by union of accompanying vv of ulnar and radial aa

91
Q

where does the brachial v end

A

end by mergin with basilic v to form axillary v

*** alot of anatomic veration in the way the veins form

92
Q

what are the nerves of the arm

A
  • median n
  • ulnar n
  • musculocutaneous n
  • Radial nerve
93
Q

median n roots and info

A

C6,7,8,T1

  • no branches to arm
  • articular branches to elbow
94
Q

Ulnar n roots and info

A

C7, 8, T1

  • no branches to arm
  • articular branches to elbow
  • deep to medial epicondyle
95
Q

Musculocutaneous n roots and info

A

C5,6, 7

  • supplies all 3 m of anterior arm
  • ** then continues as lateral cutaneous nerve of forearm

hits coracobrahialis then biceps brachii and then brachalis mm.

96
Q

Radial n roots and info

A

C5-T1
- enters arms posterior to brachial artery and runs with deep brachail artery and winds aroudn the radial groove

  • then will branch off under the brachioradialis m.
97
Q

what are the branches of the radial n.

A

superifical and deep branches

  • they form near the lateral epicondyle
98
Q

superficial branch of radial n.

A

( sensory )

  • runs with radial a
  • lateral branch to the radial side of thumb
  • medial branch divides into for digital nerves to the medail 3 digits
99
Q

deep branch of the radial n

A

( motor)

- becomes posterior interosseous n

100
Q

when does the deep brach of the raidal n become the posterior interosseous n.

A

when it crosses over the supinator m.

101
Q

look at slide 40 in upper limb part 2

A

this give a good example of what the names shoudl be of the hand

102
Q

what is the cubital fossa

A

this is a triangular depression on anterior side of elbow

103
Q

what are the cubital fossas boundries

A

Superior- imaginary line connecting medial and latera epicondyles
Medial - pronator teres
Lateral- brachioradialis

104
Q

what are the cubital fossas contents

A

Dont Break My Radial Bone on Cubital fossa

  • Brachial a end ( into raidal and ulnar aa.)
  • deep accompnaying veins of arteries
  • biceps brachii tendon
  • medain n.
  • radial n divides ( super, and deep )
105
Q

What is the median cubital vein

A

forms the communication between basilic and cephalic veins in cubital fossa

106
Q

what is the variation of the superficial brachial artery

A

may branch of the 2nd part of the axillary artery and pass between the tow roots of the median nerve and run supericial to the median nerve ( which can cause problems when trying to take blood)

107
Q

What is the forearm

A

antebrachium
OR
elbow to wrist

108
Q

what are the bones of the forearm

A

radius and ulna

plus interosseous membrane

109
Q

what does the interosseous membrane divide into

A

the anterior and posterior compartments

  • which acts as a site for muscle attachments
  • transgers forces from the radius to the ulna, to humerus
110
Q

how does the interosseous membrance changes as it moves from supinaiton to pronation

A 
pronation= relaxed state 
supination = tense state
111
Q

what is on the distal end of the radius

A

ulnar notch

lateral styloid process attach site for wirst ligaments

112
Q

what carpals bones does the interior surfaces of the radius articulate with

A

Scaphoid
lunate
triquetrium

113
Q

what is on the distal end of the ulna

A
  • head articulates with radius and wrist bones
  • styloid process attach site for muscles
  • convex articular surface for atritculation with the ulnar notch
114
Q

what is on the proximal end of the ulna

A

radial notch

115
Q

what is in the anterior compartment of the forearm

A

flexors and pronators
– median n

** tendons held in place by palmar carpal ligament and flexor retinaculum

116
Q

what is in the posterior compartment of the forearm

A

extensors and supinators
–radial nerve

** extensor tendosn held in place by extensor retinaculum and the tendons passing over wrist dorsum are covered with synovial tendon sheaths

117
Q

what are the layers of the anterior forearm m.

A

Superficial
intermediate
deep

118
Q

what is in the superificial layer of the anterior forearm m.

A
  • they cross the the elbow joint
  • originate from medial side of humerus
  • innervation of: median and ulnar n.
  • pronator teres
  • flexor carpi radialis ( radial a lies just lateral to tendon)
  • plamaris longus ( median n pass lateral to tendon and is absent on one ( left or both sides) 14% of people)
  • flexor carpi ulnaris
119
Q

what is is the intermediate layer of the anterior forearm m.

A

*they cross the the elbow joint

flexor digitorm superficialis

120
Q

what is in the deep layer of the anterior forearm m.

A

*they DO NOT cross the the elbow joint BUT attach to the radius or ulna

  • flexor digitorum profundus
  • flexor pollicis longus
  • pronator quadratus
121
Q

Posterior compartment GROUP 1 muscles that extend and abduct or adduct the hand at wrist

A
  • extensor carpis radialis longus
  • extensor carpi radialis brevis
  • extensor carpi ulnaris
122
Q

Posterior compartment GROUP 2 muscles that extend the medial four digits

A
  • extensor digitorum
  • extnesor indicis
  • extensor digit minimi
123
Q

posterior compartment GROUP 3 muscles that extend or abuct the thumb

A
  • abductor pollicis longus
  • extensor pollicics brevis
  • extensor pollicis longus
124
Q

what muscle might the extensor digitis minimi fuse with

A

the extensor diitorum

125
Q

what creates the anatomic snuff box

A

Lateral: tendons of the Abductor pollicis longus and extensor pollicis brevis

Medial: tendon of the Extensor pollicis longus

Floor: scaphoid, trapezium

Proximal: radial styloid

Distally: base of 1st metacarpal

126
Q

what is contained in the anatomic snuff box

A
  • radial a ( floor)
  • terminal brs superficial radial nerve ( roof)
  • cephalic v begins ( subcutaneously)
127
Q

where can the scaphoid carpal bone be palpated

A

in the anatomica snuff box

128
Q

what are the arteries of the forearm

A

radial a and the ulnar a

– which branch off the brachial a. from the arm

129
Q

what are the radial a divisions

A
  • radial recurrent a
  • palmar carpal branch
  • superficial palmar branch
  • dorsal carpal branch
130
Q

what does the palmar carpal branch contribute to

A

the palmar carpal arch

131
Q

what are the ulnar a divisions

A
  • anterior ulnar recurrent a
  • posterior ulnar recurrenta
  • common interosseous a ( ant and post)
  • palmer carpal branch
  • dorsal carpal branch
132
Q

what are the veins of the forearm

A
  • deep and superifcial palmar arches
  • ulnar v
  • radial v
133
Q

what are the nerves of the forearm

A

-median
-ulnar
radial

134
Q

what does the median n supply

A

the motor to the flexor muscles of the forearm ( minus the crapi ulnaris and 1/2 of the profundus ) and the muscles of the thenar compartment and the lateral 2 lumbricals

135
Q

Where does the median n enter the forearm

A

entes with the brachial artery between 2 head of the pronator teres and giving them branches

136
Q

where does the articular branches of the median n go

A

to the elbow joint

137
Q

where does the anterior interosseous nerve go

A

runs with the anterior interosseous branch of theulnar artery

138
Q

what does the anterior interosseous nerve supply

A
  • motor to the flexor pollicis long and pronator quad
139
Q

what does the anterior interosseous nerve end

A

at wrist joint sending articualr branches

140
Q

where does the palmar cutaneous branch of the medain nerve go

A

to the skin of the central part of palm

141
Q

what does the ulnar n do in general

A

motor to muscles of the hand

142
Q

where does the ulnar n enter the forearm

A

between the head of flexor carpi ulnaris

143
Q

what are the borders of the ulanr n

A

posterior humerus in the cubital tunnel

  • medial epicondyle
  • olecranaon pr
  • ulnar head of flexor carpi ulnaris
144
Q

where does the articular branches of the ulnar n go

A

to the elbow joint

145
Q

where does dorsal and palmer cutaneous branches of the ulnar n go to

A

the medial part of the hand

146
Q

what are the division of the palmer of the cutaneous

A

superficial

deep

147
Q

what does the superficial branch of the palmer branch to the cutaneous branch of the ulnar n supply

A

motor to palmaris brevis m

skin on ulnar side of hand
***direct continuation of the ulnar n.

148
Q

what does the deep branch of the palmer branch to the cutaneous branch of the ulnar n supply

A

motor to dorsal interossei, palmar interossei, lumbrical 3 & 4

149
Q

in general what does the radial n do

A

supplies all the muscles on posterior side of arm and forearm

150
Q

What are the 2 branches of the radial n

A

superficial and deep

151
Q

where does the superificial branch of the radial n go

A

sensory to the dorusm of hand

152
Q

where does the deep branch of the radial n go

A

motor

winds around lateral neck of radius enters posterior compartment then enters supinator and inferior to supinaor it becomes the posterior interosseous n

** runs with the posterior interosseous artery

153
Q

what is the posterior interosseous

A

motor to most of the posterior forearm muscles

154
Q

what does volar mean

A

relating ot palmar or sole of foot

155
Q

What are the carpal bones

A

So Long To Pinky Here Comes The Thumb

  • trapeziUM supports the thUMb
  • trapeZIOD is on the inZOID
156
Q

What make up the wirst

A

the carpal groove ad the carpal tunnel

157
Q

what makes the carpal tunnel

A

the flexor retinaculum attached to scahpoind and trapezium to the pisiform and hook of hamate

158
Q

what is the carpal tunnel filled with

A

tendons and the median nerve

**compression of the ner produces carpal tunnel syndorme

159
Q

What are mini long bones

A

metacarpus and phalanges

160
Q

What is visible in the dorsum of the hand

A
  • extensor tendons
  • heads of metacarpals
  • superficial dorasl veins
161
Q

What is unquie of the palmar hand

A
  • thicker skin
  • flexion crease
  • thenar eminence
  • hpothenar eminence
162
Q

What makes up of the palm fascia

A

this is a continuation of antebrachial fascia

163
Q

where is the palm fascia thicker and thinner

A

thicker onthe central palm

thinner on the thenar and hypothenar areas

164
Q

what is the palmar aponeurosis

A

triangular layer of heavy and dense deep fascia in middle of palm

165
Q

how many compartment of the hand

A

5

166
Q

what is in the thenar compartment

A

abductor pollicis brevis

  • flexor pollicis brevis
  • opponens pollicis
167
Q

what is in the hypothenar compartment

A
  • abductor digiti minim
  • flexor digiti minimi brevis
  • opponens digiti minimi
168
Q

what would damage to the median n. cause

A

atrophy of thenar eminence

169
Q

what would damage to ulnar nerve cause

A

atrophy of hypothenar eminence

170
Q

what muscle put our hand into writing position

A

lubricals

171
Q

what interosseous muscles abduct

A

the 4 dorsal m.

172
Q

what interosseous muscles adduct

A

the 3 palmar m.

173
Q

palmaris brevis

A
  • covers ulnar n and a.
  • originates fromt eh pamar aponeurosis and flexor retinaculum
  • attaches to the dermis on the medial margin of the hand
  • draws skin to center of palm
174
Q

What is the common flexor sheath

A

this is deep to the flexor retinaculum and the tendons of the FDS and FDP enter this

175
Q

What is the digital synovial sheath

A

these are found in the fingers and the FDS and FDP tendons enter here.

176
Q

what does the digital sheaths enable the tendon do

A

they allow them to slide freely over each other during movements of the fingers

177
Q

What are the fibrous digital sheaths

A

they are strong ligamentous tunnels that contain the flexor tendons and their synovial sheaths

178
Q

Where does the fibrous digital sheaths extend to and from

A

extend from the metacarpal heads to bases of distal phalanges

179
Q

what are the osseofibrous tunnels

A

the lumen of the fibrous digital sheaths

180
Q

what is the tendinous chiasm

A

this is when there is a crossing of tendons such as the crossing of FDS and the FDP

181
Q

what are the tendinoys vincula

A

there is a long and breva they hold the superficialis and profundus in place
-AND the flexor tendons receive blood through small blood vessels from here ( from the digtal aa.)

182
Q

what forms the extensor expansions

A

the extensor digitorum tendons flatten to become this

183
Q

what does each expansion is triangular have

A

they are tendionus aponeruosis or hood that wraps aroudn the head of the metacarpal and base of proximal phalanx and attach to the deep fascia

184
Q

what are the three bands of the extensor expansions

A

1 median- ED tendon to middle phalanx

2 lateral bands to distal phalanx

185
Q

what are the branches of the radial a. of the hand

A
  • palmar carpal a
  • superificial palmar branch a.
  • deep palmar branch a.
  • dorals carpal branch a.
  • principis pollicis a.
  • radial indicis a.
186
Q

where does the radial a of the hand end

A

by anastomosing with deep branch of ulnar a form deep palmar arch

187
Q

where does the pamar carpal branch and ulnar aa form

A

the palmar carpal arch

188
Q

what does the dorsla carpal brancha and the ulnar aa form

A

the dorsal carpal arch

first dorsal metacarpal artery

189
Q

where does the radial indicis a arises

A

they usually arise from the radial artery but it may originate from the princeps pollicis a

190
Q

where does the ulnar a. of the hand enter

A

via the ulnar canal between the pisiform and hood of hamate WHICH is superficial to carpal tunnel

**ulnar nerve entrapment can occur ( handlebar palsy)

191
Q

what are the terminal branches of the ulnar a. of the hand

A
  • superficial palmar arch
  • deep palmer arch via deep branch of ulnar a.
  • dorsal carpal branch
  • palmar carpal branch
192
Q

what are branches off of the superficial palmar arch of the ulnar a. divide into

A

common palmar digital aa. and anastomeose with palmar metacarpal aa

193
Q

what does the common palmer a of the superficial palmar arch divide into

A

the proper palmar digital aa

194
Q

what are the veins of the hand PALMAR side

A
  • ulanr veins
  • deep palmar venous arch
  • superficial palmar venous
195
Q

what are the veins of the hand DORSAL side

A
  • basilic vein
  • cephalic vein
  • dorsal venous network
196
Q

what are the nerves of the hand

A
  • ulnar n
  • median n
  • radial n
197
Q

how does the ulnar n enter the hand

A

enters through ulnar canal superficial to the flexor rentinaculum

198
Q

what are the branches of the ulnar n of the hand

A
  • palmar cutaneuous branch
  • dorsal branch
  • superificial branch
  • deep branch
199
Q

how does the median n enter the hand

A

enters through carpal tunnel

200
Q

what are the branches of the median n of the hand

A
  • recurrent thenar branch
  • lateral branch
  • medial branch
  • palmar cutaneous branch
201
Q

what does the palmar cutaneuous branch of the ulnar n of the hand supply

A

skin base of palm over medial carpals

202
Q

what does the dorsal branch of the ulnar n of the hand supply

A

skin medial dorsum and proximal portion of 5th and medial medial 1/2 of 4th digits ( so about dorsla medial 1-1/2 digits )

203
Q

what does the superificial branch of the ulnar n of the hand supply

A

motor ( palmar brevism ) aslo sensory to palmar and dorsal digit 5 and medial side fo digit 4
— common and proper digital nerves

204
Q

what does the deep branch of the ulnar n of the hand supply

A

motor

205
Q

what does the recurrent thenar branch of the median n of the hand supply

A

Motor - thenar muscles

206
Q

what does the lateral branch of the median n of the hand supply

A

Motor- 1st lumbrical

Sensory- skin of palmar and sital dorsal thumb and radial half of 2nd digit

207
Q

what does the medial branch of the median n of the hand supply

A

Motor- 2nd lubrical

Sensory- skin of palmar and dosal adjacent sides of 2nd-4th digits

**common and proper digital nn.

208
Q

what does the palmar cutaneous branch of the median n of the hand supply

A

skin of central palm

209
Q

what are the radial n branches of the hand

A

-superficial branch

210
Q

what does the deep branch of the radial n of the hand supply

A

motor- in the arm

and supplies no muscles in the hand

211
Q

what does the superficial branch of the radial n of the hand supply

A

skin of the posterolateral wrist and hand; dorsum of the lateral 3 1/2 digits

Anatomy (18 decks)

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