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BMSc Anatomy > Sem 1 - Upper Limb and Back > Flashcards

Sem 1 - Upper Limb and Back Flashcards

1
Q

where are the primary curvatures

A

T and S

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2
Q

where are the secondary curvatures

A

C and L

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3
Q

How many C, T, L, S and Co vertebrae are there

A 
7C
12T
5L 
5S
4Co
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4
Q

describe C1

A

atlas
no body or spinous process
anterior and posterior arches with tubercles
superior articular facet with occiput

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5
Q

describe C2

A

axis
dens/odontoid process
atlas rotates on flat superior facets allowing for rotation on a flat surface

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6
Q

describe C3-7

A

uncinate process around lat margin of body
bifid spinous process
foramen transversarium for vertebral artery
anterior and posterior tubercles with groove for spinal nerve

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7
Q

describe T1-T12

A

costal facets for articulation with ribs

long sloping spinous process

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8
Q

desribe L1-L5

A

kidney bean shaped body
accessory process on transverse process
mamillary process on superior articular facet

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9
Q

describe S1-S5

A

fuse together to form the sacrum
anterior surface = smooth
posterior surface = median crest (spinous porcess equivalent), intermediate crest (articular process equivalent), lateral crest (transverse process equivalent)

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10
Q

describe Co1-Co4

A

small and triangular

coccygeal cornu = superior projections

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11
Q

what are the joints in the vertebral column

A

between vertebral bodies = IV discs - 2ndry cartillagninous joints
between articular processes = zygopophysial joints - plane synovial joint

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12
Q

desribe the make up of the IV disc

A

annulus fibrosis = made of concentric laminae

nucleus pulposis = allows disc to change shape and move

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13
Q

what are the 5 superficial extrinsic muscles of the back

A

trapezius, latissimus dorsi, rhomboids, levator scapulae

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14
Q

origin, insertion, innervation and action of trapezius in its parts

A

descending part = Medial 1/3 superior nuchal line, external occipital protuberance
transverse part = nuchal ligament attached to C1-6, spinous processes C7-T3
ascensing part = spinous processes of T4-T12

To:
descending part = lateral clavicle
Transverse = acromion and spine of scapula
descending = spine of scapula

Spinal accesory nerve (CN XI)
rotates and retracts the scapula

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15
Q

origin, insertion, innervation and action of latissimus dorsi

A

spinous processes T7-T12, thoracolumbar fascia, iliac crest, lower 3 or 4 ribs
To edge of bicipital groove of humerus
thoracodorsal nerve C6-8
Medially rotates and adducts humerus, extends arm backwards

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16
Q

origin, insertion, innervation and action of rhomboid major

A

spinous process T2-5
To medial border of scapula
Dorsal scapular nevre C4,5
retract scapula

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17
Q

origin, insertion, innervation and action of rhomboid minor

A

nuchal ligament, spinous process C7, T1
To medial border of scapula above spine
dorsal scapular neve C4,5
Retract scapula

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18
Q

origin, insertion, innervation and action of levator scapulae

A

posterior tubercles transverse processes C1-4
To medial border of scpaula
cervical nerves C3,4 and dorsal scapular nerve C4,5
raise scapula

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19
Q

what are the 2 intermediate extrinsic muscles of the back?

A

serratus posterior superior and serratus posterior inferior

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20
Q

origin, insertion, innervation and action of serratus posterior superior

A

nuchal ligament, spinous process C7-T3
To superior border of ribs 2-4
Intercostal nerves 2-5
Raise ribs

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21
Q

origin, insertion, innervation and action of serratus posterior inferior

A

spinous process T11-L2
To inferior border ribs 8-12 (near angle)
anterior rami T9-T12
depress ribs

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22
Q

what are the intrinsic muscles of the back?

A

Splenius capitus, splenius cervicis, iliocostalis, longissimus, spinalis, semispinalis, multifidus, rotatores, levator costarum, interspinale and intertranvsersarii

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23
Q

origin, insertion, innervation and action of splenius capitis

A

nuchal ligament and spinous process C7- T3/4
To mastoid process and lateral 1/3 superior nuchal line
posterior spinal nerve
maintain posture and control VC movement

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24
Q

origin, insertion, innervation and action of splenius cervicis

A

nuchal ligament and spinous process C7 to T3/4
To tubercles of transverse process C1 to T3/4
posterior spinal nerve
maintain posture and control VC movement

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25
parts, insertion, innervation and action of iliocostalis
lumborum, thoracic, cervicis To angles of lower ribs, cervical transverse processes posterior spinal nerve maintain posture and control VC movement
26
what is the origin of the erector spinae muscles
``` Posterior iliac crest Posterior sacrum Sacroiliac ligament Superior processes of sacral and lower lumbar vertebrae Supraspinous ligament ```
27
parts, insertion, innervation and action of longissimus
thoracis, cervicis, capitis To ribs between tubercles and angles, thoracic and cercial transverse processes, mastoid process posterior spinal nerve maintain posture and control VC movement
28
parts, insertion, innervation and action of spinalis
thoracis, cervicis, capitis To upper thoracic spinous process and cranium posterior spinal nerve maintain posture and control VC movement
29
origin, insertion, innervation and action of semispinalis
transverse process C4-T12 occipital bone, thoracic and cervical spinous processes posterior spinal nerve maintain posture and control VC movement
30
describe multifidus
superomedial to spinous processes of 2-4 vertebrae above
31
describe rotatores
superomedial to junction of lamina and transverse process 1 or 2 vertebrae above rotation
32
describe levator costarum, interspinale and intertransversarii
levator costarum = T region Interspinale = C and L region Intertransversarii = C and L region
33
origin, insertion, structure and function of anterior longitudinal ligament
skull base To sacrum 3 layers of dense collagen fibres with deep binding vertebrae and superficial spanning segments limit extension
34
origin, insertion, structure and function of posterior longitudinal ligament
C2 To sacrum attach to IV discs and VB, found within the vertebral canal prevents IV disc herniation (weakly limits flexion)
35
origin, insertion, structure and function of ligamenta flava
connect laminae of adjacent vertebrae elastic fibres help to maintain curvatures reinforce walls of VC posteriorly, limit flexion
36
origin, insertion and structure of interspinous ligament
connects adjacent spinous processes | thin, weak and membranous
37
origin, insertion and structure of supraspinous ligament
C7 To sacrum connects tips of the spinous processes
38
origin, insertion and structure of intertransverse ligament
connects adjacent transverse processes cervical = scattered firbes thoracic = fiborus lumbar = membranous
39
origin, insertion, structure and function of nuchal ligament
external occipital protuberance, posterior border foramen magnum, spinous process C1-7 Thickened fibroelastic tissue, continuous with the supraspinous ligament Muscle attachment and limits flexion
40
what level is the conus medularis
L1/2
41
what level is the cercial enlargment of the spinal cord
C4-T1
42
what level is the lumbosacral enlargment of the spinal
L1-S3
43
what is the cauda equina
L and S roots that extend beyond the level of the conus medularis
44
what is the filum terminale
remnant of the caudal parts of the spinal cord
45
describe the layers of the spinal meninges
dura mater > epidural space > arachnoid mater > subarachnoid space > pia mater > denticulate ligaments
46
describe the spinal dura mater
tough outer coating, attaches to the coccyx by filum terminale, lateral extensions cover nerve roots
47
desribe the epidural space
internal vertebral venous plexus | epidural fat
48
describe the spinal arachnoid mater
delicate membranous lining dura | arachnoid trabeculae connect arachnoid to pia
49
describe the subarachnoid space
filled with CSF | enlarges around conus medularis to form the lumbar cistern
50
describe the denticulate ligaments
run on either side of the bord between the posterior and anterior suspend cord in the dural sac
51
describe the arterial supply to the spinal cord
1x anterior spinal artery 2x posterior spinal artery supported by segmental medullary arteries radicular artery to the nerve roots
52
describe the venous drainage of the spinal cord
3x anterior spinal veins 3x posterior spinal veins drained by medullary and radicular veins join to the internal vertebral venous plexus in epidural space
53
what are the bones of the pectoral girdle
scapula, clavicle and humerus
54
where does the coracohumeral ligament lie
greater tubercle to the coracoid process
55
where does the transverse humeral ligament lie
between greater and lesser tubercles to hold biceps tendon in place
56
where do the glenohumeral ligaments lie
lesser tubercle to glenoid cavity
57
what are the clavicular ligaments
``` acromioclavicular coracoacromial coracoclavicular anterior and posterior sternoclavicular costoclavicular ```
58
what is the blood supply to the scapula
thyrocervical trunk and axillary artery
59
where does the dorsal scapular artery run
medial border of scapula and anastomoses with suprascapular and subscapular artery branches
60
where does the subscapular artery run from and what does it supply
from thoracodorsal artery supplying muscles of the lateral border of the scapula
61
what are the borders of the quadrangular space
``` Sup = teres minor Inf = teres major Med = long head of triceps brachii Lat = humerus ```
62
what are the borders of the triangular space
``` Sup = teres major Med = long head of triceps brachii Lat = humerus ```
63
what are the muscles of the pectoral girdle
trapezius, rhomboids, levator scapulae, pectoralis major and minor, serratus anterior, deltoid, teres major, subclavius
64
origin, insertion, innervation and action of pectoralis major
clavicle, costal cartilage ribs 1-6, sternum To outer lip of bicipital groove of humerus Medial pectoral nerve (C8, T1) and lateral pectoral nerve (C5-7) Flexion and adduction of arm, medial rotation of humerus
65
origin, insertion, innervation and action of pectoralis minor
ribs 3,4,5 To coracoid process of scapula medial pectoral nerve (C8, T1) pulls shoulder anteriorly
66
origin, insertion, innervation and action of serratus anterior
outer surface ribs 1-8 To superior and inferior angles and medial border of the scapula Long thoracic nerve (C5,6,7) protraction of scapula
67
origin, insertion, innervation and action of deltoid
``` lateral 1/3 clavicle, acromion, spine of scapula To deltoid tuberosity Axillary nerve (C5,6) Post fibres = extension and lateral rotation Ant fibres = flexion and medial rotation All = abduction beyond 10 degrees ```
68
origin, insertion, innervation and action of teres major
lateral border of scapula To medial lip of bicipital groove Subscpaular branch of the posterior cord adduction and medial rotation of arm
69
origin, insertion, innervation and action of subclavius
sternal end of the 1st rib To middle 1/3 underside of clavicle Nerve to subclavius C5,6 draws clavicle down and dorwards during abduction
70
what are the rotator cuff muscles
Subscapularis Supraspinatus Infraspinatus Teres minor
71
origin, insertion, innervation and action of subscapularis
subscapular fossa Lesser tubercle of humerus upper and lower subscapular nerves C5,6,7 medial rotation of arm
72
origin, insertion, innervation and action of supraspinatus
supraspinous fossa to greater tubercle of humerus - upper facet Suprascapular nevre C5,6 abducts arm first 10-15 degrees
73
origin, insertion, innervation and action of infraspinatus
infraspinous fossa greater tubercle of humerus - middle facet suprascapular nerve C5,6 lateral rotation of arm
74
origin, insertion, innervation and action of teres minor
upper 2/3 lateral border of scapula To greater tubercle of humerus - lower facet axillary nerve C5,6 lateral rotation arm
75
describe the clavicopectoral fascia
encloses subclavius and pectoralis minor forms suspesnory ligaments to the fascia of the floor of the axilla pierced by cephallic vein, thoracoacromial artery and lateral pectoral nerve
76
what are the boundaries of the axilla
``` ant = pectoralis major and minor, subclavius and fascia floor = skin extending into arm roof = rib 1, clavicle and scapula post = subscapularis, teres major, latissimus dorsi, long head of triceps brachii lat = humerus med = serratus anterior and wall of thorax ```
77
describe the axillary vein
basilic vein > axillary vein + cephallic vein > subclavian vein
78
axillary artery parts and branches
``` 1 = prox to pec minor - superior thoracic artery 2 = post to pec minor- thoracoacromial and lateral thoracic artery 3 = distal to pec minor - subscapular, anterior and posterior circumflex arteries ```
79
desribe the lymph flow of the axilla
``` humeral = post to axillary vein = upper limb pectoral = inf margin pec minor = thorax and breast subscapular = post axillary wall = back shoulders and neck central = axillary fat = main communication apical = sup margin pec minor = drain other nodes and breast ```
80
what roots form the brachial plexus
C5-T1
81
what roots form the superior trunk
C5-C6
82
what roots form the middle trunk
C7
83
what roots form the inferior trunk
C8-T1
84
what nerve roots from the lateral cord
C5-7
85
what nerve roots from the posterior cord
C5-T1
86
what nerve roots from the medial cord
C8-T1
87
what are the terminal branches of the lateral cord
musculocutaneous nerve lateral pectoral lateral root of median
88
what are the terminal branches of the posterior cord
radial axillary subscapular thoracodorsal
89
what are the terminal branches of the middle cord
ulnar medial pectoral medial cutaneous arm and foream medial root of median
90
what are the muscles of the anterior compartment of the arm
biceps brachii coracobrachialis brachialis
91
what nerve supplies the anterior compartment of the arm
musculocutaneous nerve (C5,6)
92
what action does the anterior compartment of the arm carry out
flexion of arm
93
origin, insertion and action of biceps brachii
long head = supraglenoid tubercle of scapula short head = coracoid process To radial tuberosity long head = prevent anterior disloation of humerus short head = resist dislocation whole = weak flexion of arm and supination
94
origin, insertion and action of coracobrachialis
coracoid process To medial midshaft humerus flex and adduct arm at glenohumeral joint pierced by musclocutaneous nerve
95
origin, insertion and action of brachialis
distal humerus To ulnar tuberosity and coronoid process Flex elbow lat fibres supplied by radial nerve
96
what muscle is in the posterior compartment of the arm
triceps brachii
97
origin, insertion and action of triceps brachii
long head = infraglenoid tubercle medial head = posterior surface shaft of humerus lateral head = humerus superior to radial groove To olecranon extends elbow, long head resists dislocation
98
describe the brachial artery
continuation of axillary after inf border of teres major | branches - profunda brachii (to radial collateral), ulnar collateral
99
what artery forms the common interosseous artery
ulnar artery
100
what vein goes deeper cephallic or basilic
basilic
101
what vein is more medial cephalic or bascilic
basilic
102
where does the cephalic vein lie
deltopectoral groove
103
describe the courses of the nerves in the arm
``` median = middle of cubital fossa with brachial artery musculocutaneius = under biceps radial = lateral intermusclar septum ulnar = medial intermusclar septum ```
104
what is the common flexor origin
medial epicondyle
105
what is the common extensor origin
lateral epiconydle
106
what does the capitulum articulate with
radius (lateral)
107
what does the trochlea articulate with
ulna (medial)
108
what are the boundaries of the cubital fossa
``` lat = brachioradialis med = pronator teres roof = skin, fascia and bicipital aponeurosis floor = brachialis and suppinator ```
109
what are the contents of the cubital fossa from medial to lateral
median nerve bifurcation of the brachial artery tendon of biceps brachii
110
what is the communication between the basilic and cephalic veins called
median cubital vein
111
where does the medial cutaneous nerve arise from
medial cord
112
where does the lateral cutaneous nerve arise from
musculocutenous nerve
113
what kind of joint is the elbow joint
synovial hinge joint
114
what are the ligaments associated with the elbow
medial and lateral collateral, annular ligament
115
what elbow ligament has 3 parts
medial = anterior, posterior and oblique
116
is the radius or ulna more lateral
radius
117
what is between the radius and ulna
interosseous membrane
118
what are the muscles of the anterior compartment of the forearm
``` palmaris longus flexor carpi radialis and ulnaris flexor carpi superficialis and profundus flexor pollicis longus pronator teres pronator quadratus ```
119
what is the main nerve contributing to the anterior compartment of the forearm
median nerve
120
what is the main action of the anterior compartment of the forearm
flexors and pronators
121
origin, insertion, innervation and action of palmaris longus
medial epicondyle To palmar fascia Median nerve C7, C8 tightens aponeurosis to aid with wrist flexion
122
origin, insertion, innervation and action of pronator teres
medial epicondyle of humerus and coronoid process of ulna To lateral radius median nerve C6,7 pronation
123
origin, insertion, innervation and action of flexor carpi radialis
medial epicondyle To base of 2nd metacarpal Median nerve C6,7 Abduct wrist
124
origin, insertion, innervation and action of flexor carpi ulnaris
medial epicondyle To base of pisiform, hamate and 5th metacarpal Ulnar nerve C7,8 Adduct wrist
125
origin, insertion, innervation and action of flexor digitorum superficialis
medial epicondyle and coronoid process of ulna To middle phalanges median nerve C7,8 T1 Flex MCP, PIP and wrist
126
origin, insertion, innervation and action of flexor digitorum profundus
ulna and interosseous membrane To distal phlanges Ring and little finger = ulnar nerve C8-T1 Index and middle finger = median C8, T1, anterior interosseous Flex MCP, PIP, DIP and wrist
127
origin, insertion, innervation and action of flexor pollicis longus
radius and interossseous membrane To base of distal pahalnx of thumb median nerve C8, T1, anterior interosseous Flex MCP and IP of thumb
128
origin, insertion, innervation and action of pronator quadratus
distal anterior ulna To distal anterior radius Median nerve C8, T1, anterior interosseous pronation and stabalaise distal radioulnar joint
129
what muscle does the median nevre pass through the heads of?
pronator teres
130
what are the bones in the distal row of the wrist from medial to lateral
hamate, capitate, trapezoid, trapezium
131
what are the bones in the proximal row of the wrist from medial to lateral
triquetral on top of pisifom, lunate, scaphoid
132
what are the attachments of the flexor retinaculum
``` Medial = pisiform and hook of hamate bone Lateral = tubercle of scaphoid and side of trapezium ```
133
where does the septum from the flexor retinaculum form and for what tendon
formed by an attachment to trapezium | allows for tendon flexor carpi radialis
134
is the radius or ulna more articulate with the bones of the wrist
radius | ulna has an additional articular disc to help it
135
what is the flexor retinaculum
connective tissue forming bands on the anterior and posterior sufaces of th ewrist
136
what are the contents of the carpal tunnel
5x FDS 5x FDP 1x FPL median nerve
137
how do the ulnar artery and nerve enter the hand
pass over the tunnel reaching palmar surface of hand
138
how does the radial nerve enter the hand
from post compartment of forearm and then goes over the roof of the anatomical suffbox as a sensory branch to the dorsum of the hand
139
how does the radial artery enter the hand
passes along the lateral side of the anterior compartment of the forearm and through the floor or the anatomical snuffbox between the adductor heads
140
what are the two muscles that lie on the posterior compartment of the forearm but act on the elbow
anconeus and brachioradialis
141
origin, insertion, innervation and action of anconeus
lateral epicondyle To olecranon radial nerve C7-8, T1 extension of elbow
142
origin, insertion, innervation and action of brachioradialis
distal humerus radius proximal to the styloid process Radial nerve C5,6,7 (before the divisions) flex elbow
143
what are the muscles of the posterior compartment of the forearm
extensor carpi radialis longus and brevis extensor carpi ulnaris extensor digitorum, digiti minimi and indicis extensor pollicis longus and brevis abductor pollicis longus supinator
144
what is the nerve that supplies the posterior compartment of the forearm
radial nerve
145
what is the main action of the posterior compartment of the forearm
extension and supination
146
origin, insertion, innervation and action of extensor carpi radialis longus
distal humerus To base of 2nd metacarpal radial nerve C6,7 pre division extend wrist and adduct
147
origin, insertion, innervation and action of extensor carpi radialis brevis
lateral epicondyle To base of 3rd metacarpal radial nerve C7,8 posterior interosseous extend wrist and abduct
148
origin, insertion, innervation and action of extensor carpi ulnaris
lateral epicondyle To base of 5th metacarpal radial nerve C7,8 posterior interosseous extend and abduct wrist
149
origin, insertion, innervation and action of extensor digitorum
lateral epicondyle To dorsal expansion of digits 2-5 radial nerve C7,8 posterior interosseous extends MCP, PIP, DIP of digits 2-5, extends wrist
150
origin, insertion, innervation and action of extensor digiti minimi
lateral epicondyle To dorsal expansion of digit 5 radial nerve C7,8 posterior interosseous extends MCP, PIP, DIP of digit 5, extends wrist
151
origin, insertion, innervation and action of extensor indicis
posterior surface ulna To dorsal expansion of digit 2 radial nerve C7,8 posterior interosseous extends MCP, PIP, DIP of index finger and extends wrist
152
origin, insertion, innervation and action of extensor pollicis longus
ulna and interosseous membrane To base of distal phalanx of thumb radial nerve C7,8 posterior interosseous extends CMC, MCP, IP and wrist
153
origin, insertion, innervation and action of extensor pollicis brevis
radius and interosseous membrane To base of proximal phalanx of thumb radial nerve C7,8 posterior interosseous extends CMC, MCP
154
origin, insertion, innervation and action of abductor pollicis longus
radius and interosseous membrane and ulna To base of 1st metacarpal radial nerve C7,8 posterior interosseous abducts thumb and extends CMC, wrist
155
origin, insertion, innervation and action of supinator
crest of ulna, lateral epicondyle of humerus, radial collateral and annular ligament To lateral radius radial nerve C7,8 posterior interosseous supination of forearm
156
what forearm muscles come of the medial epicondyle
``` palmaris longus pronator teres flexor carpi radialis flexor carpi ulnaris flexor digitorum superficialis ```
157
what forearm muscles come of the lateral epicondyle
``` extensor carpi radialis brevis extensor carpi ulnaris extensor digitorum extensor digiti minimi supinator anconeus ```
158
what are the two branches of the radial nerve
``` superficial = sensory dorsal digital branches deep = motor ```
159
what are the boundaries of the anatomical snuffbox
``` lateral = extensor pollicis brevis and abductor pollicis longus medial = extensor pollicis longus roof = branches of superficial radial nerve and cephallic vein floor = scaphoid, trapezium and 1st metacarpal base ```
160
what are the digital expansions
strong connective tussue that allows the long flexors and short muscles of the hand to act on all three parts
161
what are the tendons of the posterior wrist from lateral to medial
abductor pollicis longus and extensor pollicis brevis extensor carpi radialis longus and brevis extensor pollicis longus extensor indicis and extensor digitorum extensor digiti minimi extensor carpi ulnaris
162
what is the function of the palmar aponeurosis
protect vessels and along with palmaris longus aid in wrist flexion
163
origin, insertion, innervation and action of palmaris brevis
palmar aponeurosis and flexor retinaculum To dermis ulnar nerve C8, T1 - superficial branch aids in gripping
164
origin, insertion, innervation and action of abductor pollicis brevis
scaphoid and trapezium To base of proximal phalanx of thumb median nerve C8,T1 - recurrent branch CMC joint abduction
165
origin, insertion, innervation and action of flexor pollicis brevis
flexor retinaculum, capitate and trapezium To base of proximal phalanx of thumb median nerve (recurrent branch) and ulnar nerve C8, T1 CMC joint flexion
166
origin, insertion, innervation and action of opponens pollicis
trapezium To 1st metacarpal median nerve (recurrent branch) C8, T1 CMC joint opposition
167
origin, insertion, innervation and action of adductor pollicis
``` transverse head = 3rd metacarpal oblique head = capitate and 2-3 metacarpal To base of proximal phalanx of thumb ulnar nerve (deep branch) C8, T1 Adduction of CMC joint of thumb ```
168
origin, insertion, innervation and action of abductor digiti minimi
pisiform To base of 5th metacarpal and dorsal digital expansion ulnar nerve (deep branch) C8, T1 abduction and flexion MCP of little finger
169
origin, insertion, innervation and action of flexor digiti minimi
hamate, flexor retinaculum To base of 5th proximal phalanx ulnar nerve (deep branch) C8, T1 flex MCP joint of little finger
170
origin, insertion, innervation and action of opponens digiti minimi
hamate and flexor retinaculum To 5th metacarpal ulnar nerve (deep branch) C8, T1 weak opposition of little finger
171
origin, insertion, innervation and action of lumbricals from the tendons of flexor digitorum profundus
1-2 unipennate, 3-4 bipennate dorsal digital expansion 1-2 median nerve (digital branch, C8, T1), 3-4 ulnar nerve (deep branch C8, T1) MCP joint flexion and IP extension digits 2-4
172
how many, origin, insertion, innervation and action of palmar interossei
3 1= 2nd metacapral, 2= 4th metacarpal, 3= 5th metacarpal To base of respective metacarpal Ulnar nerve (deep branch, C8-T1) adduct fingers towards the midline finger
173
how many, origin, insertion, innervation and action of dorsal interossei
4 1= 2nd proximal phalanx and dorsal expansion 2-3= 3rd proximal phalanx and dorsal expansion 4= 4th proximal phalax and dorsla expansion ulnar nerve (deep branch, C8,T1) abduct fingers, MCP flexion and IP extension
174
what artery forms majority of the superficial palmar arch
ulnar artery
175
what artery forms majority of the deep palmar arch
radial artery
176
what artery forms the princeps pollicis artery
radial artery
177
what is the distribution of median nerve supply in the hand
``` Motor = abductor pollicis brevis, flexor pollicis brevis, opponens pollicis, 1-2 lumbricals Sensory = lateral side of palm, palmar thumb, lateral 2.5 digits palmar and over finger tips round down to the DIP/IP joints dorsally ```
178
what is the distribution of ulnar nerve supply in the hand
``` Motor = palmaris brevis, abductor digiti minimi, flexor digiti minimi, opponens digiti minimi, lumbrials 3-4, adductor pollicis, palmar interossei, dorsal interossei Sensory = medial palm and medial 1.5 fingers palmar and dorsally ```
179
what is the distribution of radial nerve supply in the hand
Sensory = thenar eminance, lateral side of dorsum of hand up to DIP/IP joint
180
what nerve root is the badge patch area
C5
181
what nerve root is the pad of thumb
C6
182
what nerve root is the pad of middle finger
C7
183
what nerve root is the pad of little finger
C8
184
what nerve root is the medial side of elbow
T1

BMSc Anatomy (2 decks)

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