Vascular Supply to the Upper Limb

Question 1

_______ begins at lateral border of 1st rib and ends at inferior border of teres major muscle.

Answer 1

axillary artery

Question 2

how many parts is the axillary artery divided into?

Answer 2

3

Question 3

the first part of the axillary artery has?

Answer 3

• 1st rib to medial border of pectoralis minor
• enclosed in axillary sheath
• one branch : superior thoracic artery supplying serratus anterior muscle.

Question 4

the second part of the axillary artery has?

Answer 4

• posterior to pectoralis minor

- two branches: thoraco-acromial artery, lateral thoracic artery (both supply pectoral muscles and breast)

Question 5

what does the third part of the axillary nerve contain?

Answer 5

• lateral border of pectoralis minor to inferior border of teres major muscle
• three branches

Question 6

_____ : largest branch, divides into circumflex scapular and thoracodorsal arteries, supplies serratus anterior, teres major, subscapularis, and latissimus dorsi muscles.

Answer 6

subscapular artery

Question 7

______: (medial location) continuation of axillary artery, ends in cubital fossa.

Answer 7

brachial artery

Question 8

_______: lies anterior to triceps and brachialis muscle throughout its course, accompanied by the median nerve

Answer 8

brachial artery

Question 9

what are the branches of the brachial artery?

Answer 9

• many muscular branches
• profunda brachii artery from medial aspect
• superior and inferior ulnar collateral branches

Question 10

______: (deep artery of the arm) accompanies radial artery in radial groove, divides into anterior and posterior descending branches to allow.

Answer 10

profunda brachii

Question 11

______: larger of two terminal branches of brachial artery, begins medial to biceps tendon and descends through anterior compartment deep to pronator teres muscle.

Answer 11

ulnar artery

Question 12

what are the branches of the ulnar artery?

Answer 12

• anterior ulnar recurrent

- posterior ulna recurrent

Question 13

_____: begin in cubital fossa at neck of radius, passes distally deep to brachioradualis muscle, palpable throughout lateral forearm.

Answer 13

radial artery

Question 14

what is included in the branches of the radial artery?

Answer 14

• supplies flexor and extensor muscles on lateral side of forearm, radial artery, branches to hand

Question 15

_______: (branches from the ulnar artery) runs across anterior wrist deep to tendons of flexor digitorum profundus (FDP).

Answer 15

palmar carpal branch

Question 16

_____: (branches from the ulnar artery) arises proximal to pisiform bone, crosses dorsal to wrist.

Answer 16

dorsal carpal branch

Question 17

_______: superficial and deep palmar venous arches, dorsal veneers network (arch), both drain to cephalic and basilica veins.

Answer 17

veins of hand

Question 18

______: basilic vein ascends posteromedially on forearm, cephalic vein ascends on lateral border of forearm, median cubital vein connects cephalic and basilica over cubital fossa.

Answer 18

superficial veins of forearm

Question 19

_____: paired radial and ulnar veins and interosseous veins accompany arteries of same name, all communicate w/ superficial veins and median cubital vein.

Answer 19

deep veins of forearm

Question 20

_______: located on anterolateral surface, enters groove b/w deltoid muscle and pectoralis major muscle (deltopectoral groove)

Answer 20

cephalic vein

Question 21

the cephalic vein empties into termination of?

Answer 21

axillary vein

Question 22

______: located on the medial side, inferior arm, pierces deep fascia at junction of inferior and middle third of arm, runs superiorly to axillary vein.

Answer 22

basilic vein

Question 23

______: paired, accompany brachial artery, form at elbow from radial and ulnar veins, have valves, merge w/ basilica vein to form axillary vein.

Answer 23

deep veins

Question 24

all ____ from arm drains to axillary nodes, including the breasts and thorax.

Answer 24

lymphatics

Question 25

the brachial plexus is composed of ?

Answer 25

• roots (5)
• trunks (3)
• divisions (6)
• cords (3)
• branches (13 + 4 from roots / terminal branches 5)

Question 26

______: ventral rami of spinal nerves C5 - T1 ( dorsal scapular nerve C5, long thoracic nerve C5-C7)

Answer 26

roots

Question 27

______: superior from ventral rami of C5 and 6 (branches nerve to subclavius muscle; suprascapular nerve to supraspinatus muscle, and infraspinatus muscle, shoulder joint), middle from ventral ramps of C7, inferior from ventral rami of C8 and T1.

Answer 27

trunks

Question 28

describe the divisions on the brachial plexus?

Answer 28

• anterior divisions of superior and middle trunks from lateral cord
• anterior divisions of inferior trunk continues as medial cord
• posterior divisions of all three trunks for posterior cord

Question 29

how are the cords named?

Answer 29

by relationship to axillary artery that they surround (lateral, medial, posterior)

Question 30

______: pectoral nerve (C5-C7) to pectoralis major and minor muscles, musculocutaneous (C5-C7), root of median nerve (C6-C7).

Answer 30

branches from lateral cord

Question 31

______: ulnar nerve (C8-T1), brachial cutaneous nerve (C8-T1) supplies skin over medial surface of arm and proximal surface of forearm, and median nerve.

Answer 31

branches from medial cord

Question 32

_______: upper subscapular nerve (C5-C6) to subscapularis muscle, lower subscapular nerve to teres major muscle and subscapularis muscle, thoracodorsal nerve (C5-C6) to latissimus dorsi muscle, axillary nerve to teres minor muscle and deltoid muscle.

Answer 32

branches from the posterior cord

Question 33

anterior divisions supply _____ parts of upper limb.

Answer 33

flexor

Question 34

posterior divisions supply _____ parts of upper limb.

Answer 34

extensor