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Flashcards in A,B Deck (36):
1

What makes up the anterior wall of the axilla?

pec major and minor

2

What makes up the posterior wall of the axilla?

lat, teres major, subscapularis

3

What makes up the medial wall of the axilla?

serratus anterior

4

What makes up the lateral wall of the axilla?

intertubercular sulcus of humerus

5

What muscles are on the lateral wall of the axilla?

coracobrachialis, long and short head of the biceps

6

What does the axillary sheath (not the entire axilla) contain?

axillary a. and brachial plexus

7

What is the fascia of the anterior wall of the axilla (also fascia that surrounds pec minor)?`

clavipectoral fascia

8

What are the five major groups of lymph nodes in axilla?

pectoral
subscapular
humeral
central
apical

9

What receives lymph from all of the nodes of the axilla?

apical nodes

10

Where is the axillary sheath located?

medial aspect of arm

11

What is the branch of the first part of the axillary artery?

superior thoracic a.

12

What are the branches of the second part of the axillary a.?

thoracoacromial a.
lateral thoracic a.

13

What are the branches of the third part of the axillary a.?

subscapular a.
anterior circumflex humeral a.
posterior circumflex humeral a.

14

What are the roots of the brachial plexus?

ventral rami C5 - T1

15

What nerves emerge above their cervical vertebrae?

C1-C7 emerge above C1-C7 vertebrae

16

Where does C8 n. emerge?

below C7

17

What makes up the 'M' of the brachial plexus?

musculocutaneous n.
median n.
ulnar n.

18

What makes up the 'Y' of the brachial plexus?

axillary n.
radial n.

19

What is the major nerve of the anterior arm, what is its origin, and what does it innervate?

musculocutaneous n.

C5-C7, from lateral cord

innervates coracobrachialis, bices, 1/2 of brachialis

20

What is the major nerve of the anterior FOREarm, what is its origin, and what does it innervate?

median n.

C5-T1, from medial and lateral cords

innervates most of anterior forearm and some of hand

21

What is the major nerve of the hand, what is its origin, and what does it innervate?

ulnar n.

C8-T1, from medial cord

innervates most of the hand, flexor carpii ulnaris and flexor digitorum (?) in forearm

22

What is the origin of the axillary n. and what does it innervate?

C5-C6, from posterior cord

innervates deltoid and teres minor

23

What is the major nerve of the posterior arm and forearm, what is its origin and what does it innervate?

Radial n.

C5-T1, from posterior cord

innervates all mm in posterior arm/forearm and 1/2 of brachialis

24

Where is the best place to view the radial n.?

inferior border of the triangular interval

25

Dorsal scapular n.: origin and innervation

C5, from root of C5

rhomboid and levator scapulae

26

long thoracic n: origin and innervation

roots of C5, C6, C7

serratus anterior

27

suprascapular n: origin and innervation

C5, C6; superior trunk

supraspinatus, infraspinatus

28

lateral pectoral n: origin and innervation

C5, C6, C7; lateral cord

pec major

29

medial pectoral n: origin and innervation

C8-T1; medial cord

pec major and minor

30

upper subscapular n: origin and innervation

C5, C6; posterior cord

subscapularis

31

thoracodorsal n: origin and innervation

C6, C7, C8; posterior cord

lat dorsi

32

lower subscapular n: origin and innervation

C5, C6; posterior cord

subscapularis, teres major

33

What are the lower plexus nerves and where do they originate?

upper subscapular n.
thoracodorsal n.
lower subscapular n.

originate from posterior cord

34

nerve to subclavius

C5, C6; superior trunk

35

medial brachial cutaneous n: origin and innervation

C8-T1; medial cord

sensory to medial arm

36

medial antibrachial cutaneous n: origin and innervation

C8-T1; medial cord

sensory to medial forearm