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Gross Exam 2 Flashcards

1
Q

what are the 4 muscles of the anterior superficial compartment

A
  1. pronator teres
  2. flexor carpi radialis
  3. palmaris longus
  4. flexor carpi ulnaris
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2
Q

what are the 1 muscles of the anterior middle compartment

A

flexor digitorum superficialis

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3
Q

what are the 3 muscles of the anterior DEEP compartment

A
  1. flexor digitorum profundus
  2. flexor pollicis longus
  3. pronator quadratus
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4
Q

what are the 6 muscles of the posterior superficial compartment

A
  1. brachioradialis
  2. extensor carpi radialis longus
  3. extensor carpi radialis brevis
  4. extensor carpi ulnaris
  5. extensor digitorum
  6. extensor digiti minimi
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5
Q

what are the 5 muscles of the posterior DEEP compartment

A
  1. supinator
  2. abductor pollicus longus
  3. extensor pollicus longus
  4. extensor pollicus brevis
  5. extensor indicis
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6
Q

what does pollicis mean

A

thumb

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7
Q

what does digitorum mean

A

fingers

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8
Q

what does carpi mean

A

wrist

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9
Q

what does palmaris mean

A

palm

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10
Q

what muscles are innervated my the median nerve

A

ALL ANTERIOR COMPARTMENT EXCEPT FLEXOR CARPI ULNARIS (ulnar nerve) and 1/2 of flexor digitorum profundus (ulnar)

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11
Q

what muscles are innervated by the ulnar nerve

A

flexor carpi ulnaris and 1/2 of flexor digitorum profundus (other 1/2 is median nerve)

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12
Q

what muscles are innervated by the radial nerve?

A

ALL posterior compartment muscles!

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13
Q

what does pronator teres do
what compartment?
what nerve?

A

pronates forearm and flexes forearm/elbow
anterior superficial
median n

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14
Q

what does flexor carpi radialis do
what compartment?
what nerve?

A

flex wrist
anterior superficial
median

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15
Q

what does palmaris longus do
what compartment?
what nerve?

A

tension of palmar aponeurosis
anterior superficial
median

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16
Q

what does flexor carpi ulnaris do
what compartment?
what nerve?

A

flex wrist (ulnar side)
anterior superficial
ULNAR!!! exception to rule

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17
Q

what does flexor digitorum superficialis do
what compartment?
what nerve?

A

flex digits
anterior middle
median

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18
Q

what does flexor digitorum profundus do
what compartment?
what nerve?

A

flex digits
anterior DEEP
1/2 ulnar and 1/2 median
EXCEPTION!!!

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19
Q

what does flexor pollicis longus do
what compartment?
what nerve?

A

flex thumb
anterior DEEP
median

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20
Q

what does pronator quadratus do
what compartment?
what nerve?

A

pronate forearm
anterior DEEP
median

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21
Q

what does brachioradalis do
what compartment?
what nerve?

A

flex forearm
posterior superficial
radial

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22
Q

what does extensor carpi radialis brevis do
what compartment?
what nerve?

A

extend wrist (radial side)
posterior superficial
radial nerve

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23
Q

what does extensor carpi radialis longus do
what compartment?
what nerve?

A

extend wrist (radial side)
posterior superficial
radial

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24
Q

what does extensor carpi ulnaris do
what compartment?
what nerve?

A

extend wrist (ulnar side)
posterior superficial
radial

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25
Q

what does extensor digitorum do
what compartment?
what nerve?

A

extend fingers
posterior superficial
radial

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26
Q

what does extensor digiti minimi do
what compartment?
what nerve?

A

extend little finger
posterior superficial
radial

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27
Q

what does supinator do
what compartment?
what nerve?

A

supinates
posterior deep
radial

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28
Q

what does abductor pollicis longus do
what compartment?
what nerve?

A

adbucts thumb
posterior deep
radial

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29
Q

what does extensor pollicis longus do
what compartment?
what nerve?

A

extends thumb
posterior deep
radial

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30
Q

what does extensor pollicis brevis do
what compartment?
what nerve?

A

extends thumb
posterior deep
radial

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31
Q

what does extensor indicis do
what compartment?
what nerve?

A

extends index finger
posterior deep
radial

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32
Q

what artery supplies posterior muscles?

A

posterior interosseous artery -> common interosseous a -> ULNAR ARTERY

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33
Q

once the brachial artery enters the cubital fossa it splits into:

A

radial and ulnar a

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34
Q

what does the ulnar artery split into right away

A

common interosseous a and ulnar a

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35
Q

what does the common interosseous artery split into

A

posterior interosseous and anterior interosseous artery

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36
Q

where can you feel your pulse- what artery

A

radial artery

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37
Q

what artery passes deep to the pronator teres

A

ulnar artery

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38
Q

what artery parallels brachioradalis muscle

A

radial artery

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39
Q

what compartment does the post and ant interosseuous arteries stay in

A

anterior compartment

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40
Q

what nerve passes between pronator teres heads

A

median nerve

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41
Q

what is the nerve of most** anterior compartments?

A

median n

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42
Q

what does the median nerve become

A

anterior interosseous NERVE and recurrent branch of median nerve

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43
Q

where is the ulnar nerve

A

behind medial epicondyle, between carpal, around elbow

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44
Q

what nerve is funny bone

A

ulnar

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45
Q

where does the radial nerve enter

A

enters cubital fossa b/w brachialis and brachioradialis

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46
Q

what does the radial nerve split into

A

deep radial n (into posterior compartment) and superficial radial n

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47
Q

what does the radial nerve innervate

A

ALL post. compartment

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48
Q

what is the terminal branch of the radial n

A

post. interosseous nerve

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49
Q

what does the musculocutaneous n become

A

once it crosses comers out from biceps -> lateral cutaneous n of forearm

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50
Q

numbness on lateral side of forearm- what nerve damaged

A

lateral cutaneous n of forearm

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51
Q

numbness in middle posterior forearm - what nerve damaged

A

post. cutaneous nerve of forearm (radial)

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52
Q

numbness on median side of forearm- what nerve damaged

A

medial cutaneous n of forearm

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53
Q

radius is thumb or pinky

A

THUMB! wrist

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54
Q

does radius or ulnar move

A

RADIUS

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55
Q

3 types of joints in forearm

A
  1. fibrous
  2. synovial
  3. cartilaginous
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56
Q

forearm joints (3)

A
  1. humeroulnar joint
  2. humeroradial joint
  3. proximal radioulnar joint
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57
Q

what holds the proximal radioulnar joint in place

A

held in place via annular ligament, head of radius rotates with this ligament

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58
Q

what does the humeroradial joint do

A

contributes to hinge, adds stability, carrying angle

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59
Q

humeroulnar joint
what does it do

A

HINGE JOINT-> flexion/extension. primarily contracts

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60
Q

distal radioulnar joint is held by what. What is its role?

A

held in place by fibrocartilage articular disc. base of radius pivots around head of ulna.

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61
Q

what does the interosseous membrane connects

A

the radius and ulna and also separates the anterior from pst. distributes forces transmitted from distal to proximal

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62
Q

what are the two main supinators ms

A

supinator and biceps brachii

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63
Q

what are the 2 main pronators ms

A

pronator teres and pronator quadratus

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64
Q

cubital fossa boundaries

A

SUPERIOR: “line” joining medial and lateral epicondyles
LATERAL: brachioradialis and supinator
MEDIAL: pronator teres and brachialis

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65
Q

medial epicondyle is radius or ulnar side

A

ulnar side

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66
Q

what nerve innervates brachioradialis

A

radial nerve. ONLY MS THAT IS A FLEXOR THAT IT INNERVATES since it is in extensor superficial compartment

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67
Q

median cubital vein has an anastamosis b/w what 2 veins

A

cephalic and basilic v

where you get blood drawm

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68
Q

what is golfers elbow

A

inflam at median epicondyle

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69
Q

what is tennis elbow

A

lateral epicondyle inflam

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70
Q

where do extensors originate from

A

lateral supracondylar ridge or lateral epicondyle of humerus and posterior forearm

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71
Q

what muscles originate from lateral supracondylar ridge

A

brachioradialis and extensor carpi radialis longus (ECRL)

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72
Q

what is the clinical sig. of the median nerve passing b/w the pronator teres heads?

A

at risk for compression!! all anterior compartments innervated by this nerve would not work right

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73
Q

ELBOW ANASTAMISIS:
4 of them name

A
  1. radial collateral a -> radial recurrent a – DEEP BRACHIAL ARTERY then RADIAL ARTERY
  2. middle collateral a -> interosseous recurrent – DEEP BRACHIAL ARTERY then ULNAR ARTERY
  3. inferior ulnar collateral a -> anterior ulnar recurrent a. – MAIN BRACHIAL ARTERY then ULNAR ARTERY
  4. superior ulnar collateral a -> posterior ulnar recurrent a. – MAIN BRACHIAL ARTERY then ULNAR ARTERY
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74
Q

ELBOW ANASTAMISIS:
what artery does radial recurrent come from

A

radial a

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75
Q

ELBOW ANASTAMISIS:
what artery does radial collateral a come from

A

anterior branch of deep brachial a

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76
Q

ELBOW ANASTAMISIS:
what artery does interosseous recurrent a come from

A

post. interosseous a

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77
Q

ELBOW ANASTAMISIS:
what artery does middle collateral a come from

A

post. branch of deep brachial a

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78
Q

ELBOW ANASTAMISIS:
what artery does anterior ulnar recurrent come from

A

ulnar a

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79
Q

ELBOW ANASTAMISIS:
what artery of posterior ulnar recurrent come from

A

ulnar a

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80
Q

ELBOW ANASTAMISIS:
what artery does superior ulnar collateral come from

A

BRACHIAL ARTERY

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81
Q

what does a fracture on ulnar mean -> nerve and muscles affected

A

ulnar n could have damage! flexor digitorum profundus (1/2) and flexor carpi ulnaris. Tons of hand muscles also would not work such as Hypothenar

82
Q

what could a fracture on the MEDIAL epicondyle mean

A

Many flexors also connect there! hard to flex fingers and wrist. All anterior superficial plus extensor digitorum connect there

83
Q

what holds the radius in place anteriorly

A

annular ligament

84
Q

what structure attaches to the long sharp ridge on the lateral aspect of the shaft of the ulna?

A

interosseous membrane

85
Q

what muscle lies superficial to the ulnar nerve

A

flexor carpi ulnaris

86
Q

what anastomoses is with the posterior branch of the deep brachial

A

Middle collateral -> interosseous recurrent
Radial collateral -> radial recurrent.

87
Q

with what bony landmark does the head of the distal ulna articulate

A

ulnar notch of the radius

88
Q

what joint does FLEXION of the elbow occur?

A

humeroulnar joint -> hinge joint!!

89
Q

primary blood supply to FLEXOR/ANT compartment of the forearm is

A

anterior interosseous a (a branch of ulnar a -> common interosseous a)

90
Q

what nerve enters cubital fossa deep to brachioradalis ms

A

radial nerve

91
Q

ELBOW ANASTAMISIS:
what artery does INFERIOR ulnar collateral come from

A

BRACHIAL ARTERY

92
Q

explain the branches off of the brachial artery:

A

Brachial Artery -> Deep Brachial Artery and Brachial Artery (continues)

Brachial artery -> superior and inferior ulnar collaterals.

Deep Brachial Artery -> Radial Collateral Artery and Middle Collateral Artery

Brachial Artery (crosses cubital fossa) -> Radial Artery and Ulnar Artery

Radial Artery (branches right away) -> Radial Recurrent Artery and Radial Artery (continues)

Ulnar Artery (passes deep to pronator teres. Branches right away) -> COMMON INTEROSSEOUS ARTERY and Ulnar Artery (continues)

Common Interosseous Artery -> Posterior Interosseous Artery and Anterior Interosseous Artery

Posterior Interosseous Artery -> Interosseous Recurrent Artery and Posterior Interosseous Artery (continues)

93
Q

boarders of the quadrangular space:

A

teres minor, teres major, humerus, and triceps brachii

94
Q

what is in the quadrangular space

A

axillary nerve and posterior circumflex humerus artery AND vein

95
Q

what are the boarders of the triangular space

A

teres minor, teres major, triceps brachii

96
Q

what is in the triangular space

A

circumflex scapula artery and vein

97
Q

are triceps ant or post

A

post

98
Q

are biceps ant or post

A

ant

99
Q

where is the long head of the biceps

A

LATERAL side. looks like shorter one

100
Q

first part of axillary artery contains:

A

superior thoracic artery

101
Q

second part of axillary artery contains:

A

thoracromical artery (CAPD) and lateral thoracic artery

102
Q

third part of axillary artery contains:

A

subscapular artery -> circumflex scapular artery** and thoracodorsal artery

Posterior circumflex humeral artery **
Anterior circumflex humeral artery

103
Q

what muscle divides up the axillary artery?

A

PEC MINOR!

104
Q

GO OVER FOREARM CUTANEOUS INNERVATION

A

look at notes picture

105
Q

What are the 3 muscles of the thenar compartment

A

thumb side:
Abductor pollicus brevis
flexor pollicus brevis
opponens pollicus

106
Q

what nerve in located on the base of thumb

A

recurrent branch of median nerve

107
Q

what are the hypothenar muscles

A

pinky side
abductor digiti minimi
flexor digiti minimi
opponens digiti minimi

108
Q

which side on hand has an adductor?

A

adductor POLLICUS
right between index finger and thumb

109
Q

nerve and artery names running up fingers and what distinguishes them?

A

COMMON digital a/n before they branch and then PROPER digital a/n after they branch

110
Q

what does the COMMON digital arteries come off of?

A

Superficial palmar arch

111
Q

what supplies the superficial palmar arch?

A

ulnar artery/ superficial branch of radial artery

112
Q

what supplies the DEEP palmar arch?

A

radial artery/ DEEP ulnar artery

113
Q

what tissue covers your palm

A

palmar aponerousis

114
Q

What muscles does the median nerve specifically innervated +4

A

pronator teres, flexor carpi radalis, palmaris longus, flexor digitorium superficialis

115
Q

What muscles does the Anterior Interosseous nerve specifically innervated and what is the nerve is came from 3

A

MEDIAN NERVE

flexor digitorum profundus (1/2), flexor pollicis longus, pronator quadratus,
HAND is from recurrent branch of median nerve : abductor pollicis brevis, opponens pollicus, first lumbrical, second lumbrical

116
Q

What muscles does the ulnar nerve specifically innervated

A

flexor carpi ulnar and flexor digitorum profundus (1/2) (BOTH WEIRD ONES)
HAND: adductor pollicis, flexor pollicis brevis, 1st dorsal interosseous, 1st palmar interosseous, 3rd lumbrical, 4th lumbrical, digiti minimi

117
Q

What muscles does the radial nerve specifically innervated 4

A

triceps, brachioradalis, extensor carpi radalis longus, extensor carpi radalis brevis

118
Q

What muscles does the Posterior Interosseous nerve specifically innervated and what main nerve did it branch from 8

A

RADIAL NERVE

supinator, ECU, ED, EDM, abductor pollicis longus, EPL, EPB, extensor indicis

119
Q

what are the order of bones on the “fingers” starting at the bottom

A

carpals, metacarpals, proximal phalanges, intermediate phalanges, distal phalanges

120
Q

what two wrist bones physically touch the radius

A

scaphoid and lunate

121
Q

what does the distal ulnar bone come into contact with by wrist

A

articular disk (cartilage) MINIMAL contact on ulnar side

122
Q

carpal-metacarpal joint is what type of joint and significant where

A

it is a SADDLE joint. -> flexion/extension and abduction/adduction and opposition/reposition
its on all 5 fingers but only really important on thumb
on thumb, it is the scaphoid and 1st MC = CMC joint

123
Q

metacarpophalangeal joint location and movement

A

where your knuckles are. does flexion/extension and adduction/abduction

this all equals circumduction

124
Q

interphalangeal joint. location

A

it is in all 4 fingers in two rows on you PIP and DIP
it is in thumb ONLY at IP

125
Q

flexor retinaculum attachments

A

Lateral: tubercle of scaphoid and trapezium (thumb side)
Medial: pisiform bone and hook of hamate (ulnar side)

126
Q

flexor retinaculum functions (3)

A
  1. closes carpal groove and creates tunnel
  2. holds flexor tendons in place and prevents bowstringing
  3. thenar and hypothenar muscle group orgins
127
Q

flexor retinaculum has what nerve lying deep to it

A

Median nerve

128
Q

flexor retinaculum has what nerve and artery lying superficial

A

ulnar a and n

129
Q

what muscles/vessels lie superficial to flexor retinaculum -5

A
  1. FCU
  2. tendon of palmaris longus (CAN BE MISSING)
  3. ulnar nerve
  4. ulnar artery and vein
  5. superficial radial artery SOMETIMES

NONE OF THESE CAN CAUSE CARPAL TUNNEL PROBLEMS BC THEY ARENT IN THE TUNNEL

130
Q

What does extrinsic mean

A

muscle bellies proximal to hand

131
Q

what extrinsic muscles/nerve are located in the carpal tunnel –4

A
  1. FDS
  2. FDP
  3. FPL pollicus
  4. median nerve

THESE ALL CAN CAUSE CARPEL TUNNEL PROBLEMS

***FCR is right away in its own separate compartment

132
Q

What nerve can cause carpal tunnel issues?

A

median nerve since it lies within tunnel

133
Q

what are sensory and motor characteristics of median nerve compression in carpal tunnel -> finger flexor tendontis

A

sensory: tingling burning of lateral 3 1/2 digits (starting on thumb to half of ring finger)
motor: weakness of thenar muscles and radial 2 lumbericals

134
Q

what is ulnar nerve compression clinical condition called

A

Ulnar tunnel or Guyon’s canal syndrome

135
Q

what is Guyons canal syndrome/ulnar tunnel syndrome characterized by

A

paresthesia of medial (ulnar) 1 1/2 digits on palmar and dorsal side.
weakness of the intrinsic hand ms. innervated by the ulnar nerve )hypothenar, all interossei, add. pollicis and ulnar side 2 lumbricals)

136
Q

what are the dorsal wrist extensors from radial to ulnar side -6 compartments

A
  1. abd PL and ext. PB
  2. ECRL and ECRB
    3.EPL
  3. ED and extensor indicis
  4. EDM
  5. ECU
137
Q

do we have a extensor retinaculum

A

Yes but no problems because we have no nerve involved on dorsal side

138
Q

what does intrinsic mean

A

whole muscle in hand

139
Q

palmar brevis
function
nerve

A

ulnar n
cups a little bit

140
Q

what are the thenar muscles and what nerve

A

abductor pollicis brevis
flexor pollicis brevis
opponens pollicis

SUPER SUPER IMPORTANT. THUMB ACTION

recurrent branch of median nerve

141
Q

what are the hypothenar muscles and nerve

A

abductor digiti minimi
flexor digiti minimi
opponens digiti minimi
ULNAR NERVE

not as important as thenar group

142
Q

dorsal interosseous
function
nerve

A

ABducts -> middle finger is midline so does not abduct
ulnar nerve
4 ms. on fingers not thumb

DAB

143
Q

palmar interosseous
function
nerve

A

ADDuction
deep branch of ulnar nerve
3 ms SUPER DEEP.
middle finger is midline and has no muscle. muscles on three other fingers (not thumb) and lies medial to middle finger

PAD

144
Q

adductor pollicis
function
nerve

A

adducts thumb
ulnar nerve

145
Q

lumbericals
function
nerve

A

flexion of MCP and IP extension
comes off FDP tendon
4 ms that lie on radial side
1st and 2nd lumbericals -> median nerve
3rd and 4th lumbericals -> deep branch of ulnar nerve
NOT on thumb

146
Q

what ligament holds knuckles together

A

deep transverse metacarpal ligament

separates dorsal and palmar
sits between Proximal Phalanges and metacarpals

147
Q

what is the flexor digital sheath

A

fibrous tube that holds the flexor tendons in place on fingers

148
Q

what NERVE passes b/w the brachioradialis and brachialis in the cubital fossa

A

RADIAL nerve.

149
Q

The musculocutaneous n becomes the lateral cutaneous nerve of the forearm when it comes out from

A

bicep heads

150
Q

what nerve passes through the head of the pronator teres

A

MEDIAN neve

151
Q

what artery passes deep to the pronator teres

A

ULNAR artery

152
Q

what artery parallels the brachioradialis

A

the radial artery

153
Q

what muscle does flexion of elbow/forearm and pronation of forearm

A

pronator teres

154
Q

what muscle is sometimes missing in people

A

palmaris longus -> ant compartment

155
Q

what nerve goes behind flexor carpi ulnar

A

ulnar nerve

156
Q

what nerve lies on top of pronator quadratus

A

anterior interosseous nerve

157
Q

radial nerve becomes what

A

Comes into cubital fossa: deep radial nerve and superficial radial nerve

Deep radial nerve pierces supinator and is now posterior interosseous nerve

158
Q

does the thumb have an intermediate phalange?

A

NO! just distal and proximal

159
Q

what part of your hand is significant to the CMC joint

A

THUMB! other fingers have no significant movements

allows thumb to do flex/ext, adb/add, and opposition/reposition

160
Q

what are you knuckles

A

Metacarpalophalangeal joint

circumduction

161
Q

what is circumduction

A

flex/ext and add/abd

162
Q

what is the extension expansion/Hood do

A

the contraction of the extensor digitorum muscle tightens this tendon which acts on these attachments and extends the fingers. -> IP joints

163
Q

what joint does the extensor digitorium extend

A

it extends the MCP -> knuckles

164
Q

ulnar artery in hand:
primary contributor to

A

superficial palmar arch

165
Q

ulnar artery in hand:
secondary contributor to

A

DEEP palmar arch (deep ulnar artery)

166
Q

what comes off of the superficial palmar arch

A

COMMON and PROPER digital arteries (and nerves)

167
Q

Radial artery in hand:
what is it the primary contributor of

A

DEEP palmar arch

168
Q

Radial artery in hand:
what is it the seconary contributor of

A

SUPERFICIAL palmar arch (superficial branch of radial artery)

169
Q

what does the radial artery branch off into into palm/hand

A

princeps pollicis a and radialis indicis a

170
Q

cutaneous hand

A

look at notes
finger tips are median

171
Q

Median nerve motor does ONLY what parts of the hand

A

2 lumbricals on radial side and the recurrent branch of the median nerve does the thenar eminence. ULNAR NERVE DOES EVERYTHING ELSE

172
Q

What nerve does a majority of the hand motor innervations

A

ULNAR NERVE

median nerve just does 2 lumbricals on radial side and the recurrent branch of the median nerve does the thenar eminence.

173
Q

anatomical snuff box boundaries:

A

Ant/Palmer: tendons of abductor pollicis longus and extensor pollicis brevis
Pos/Dorsal: extensor pollicis longus
Floor: scaphoid and trapezium carpal bones

174
Q

what nerve and artery can we find in the anatomical snuff box

A

nerve: superficial branch of the radial nerve
artery: radial artery

175
Q

tenderness in snuffbox post fall could mean what

A

broke scaphoid bone (SUPER BAD bc need for wrist function) or lunate or distal end of radius fracture

176
Q

Posterior cord is what nerve

A

Radial nerve

177
Q

Lateral cord is what nerve

A

Musculocutaneous nerve

178
Q

Medial cord is what from nerves

A

Ulnar

179
Q

What are the 3 cords

A

Lateral - musculocutaneous
Medial - ulnar
Posterior - radial

180
Q

what all does a synovial joint comprise of -5

A

two bones usually
synovial membrane
joint capsule
articular covering -> hyaline cartilage
nerve and blood supply IF they cross the joint
ligaments -> intrinsic and extrinsic

181
Q

what joint allows for more movement- fibrous or cartilaginous?

A

fibrous -> minimal
cart. -> VERY small amt

182
Q

what is a synergist

A

helps prime mover

183
Q

what is an antagonist

A

stabilizer

184
Q

what are your primary flexors

A

brachialis and biceps brachii

185
Q

what are your secondary flexors

A

all forearm muscles in that originate from the humerus (supracondylar ridge and epicondyle)

186
Q

extension of forearm ms 2

A

triceps brachii and anconeus

187
Q

proximal radioulnar joint held in place by:
distal radioulnar joint held in place by:

A

proximal: annular ligament
distal: fibrocartilage articular disc

188
Q

what movement happens are the radioulnar joints and what ms

A

supination of forearm and hand

supinator and biceps brachii

189
Q

what ms attaches at the radial tuberosity

A

biceps brachii ms

190
Q

volar is another name for

A

flexor/anterior compartments

191
Q

what is the motor nerve to MOST of the flexor compartment

A

median n

192
Q

what is the motor nerve to extensor compartment

A

radial n

193
Q

what is it called for the mech for blood to flow to an organ or region after its normal course has been blocked

A

collateral circulatioin

194
Q

a saddle joint does what movements

A

flex/ext
abd/add
medial/lat rotation = opposition/repost

195
Q

what are the 2 primary movements at the metacarpophalangeal joints

A

flex/ext
abd/add

=circumduction

196
Q

what does your interphalangeal joints do

A

HINGE JOINT -> flex/ext

*thumb only has one all other fingers have 2 sets

197
Q

what the space called that is in b/w your flexor retinaculum and palmar surface of carpal bones

A

carpal tunnel

198
Q

what do you lumbricals do

A

MCP flexion and IP extension

199
Q

common and proper digital arteries stem from what artery?

A

ulnar artery (superficial palmar arch)

200
Q

motor innervation ON HAND:

A

Median nerve: 2 lumbericals on radial side

Recurrent branch of the median nerve: thenar ms

Deep branch of ulnar nerve: does everything else

201
Q

what nerve primarily provides cutaneous/sensory info for hand ulnar side

A

superficial branch of the ulnar nerve

202
Q

what BONE are your knuckles

A

HEADS of metacarpals

Gross (4 decks)

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