Axilla

Question 1

roof of axilla

Answer 1

cervico-axillary canal

Question 2

what is the cervico-axillary canal?

Answer 2

allows for neurovasculature b/t cervical and axillary

Question 3

borders of 1st division of axillary a. (proximal)

Answer 3

lateral border of the 1st rib to medial border of pectoralis minor

Question 4

borders of 2nd division of axillary a. (medial)

Answer 4

posterior to pectoralis minor

Question 5

borders of 3rd division of axillary a. (distal)

Answer 5

lateral border of pectoralis minor to inferior border of pectoralis major

Question 6

anterior borders of axilla

Answer 6

pectoralis major

Question 7

posterior borders of the axilla

Answer 7

subscapularis, teres major, lat dorsi

Question 8

medial borders of the axilla

Answer 8

serratus anterior, lateral thoracic wall

Question 9

lateral borders of the axilla

Answer 9

intertubercular sulcus of the humerus

Question 10

musculocutaneous n. roots

Answer 10

C5-C7

Question 11

axillary n. roots

Answer 11

C5,C6

Question 12

radial n. roots

Answer 12

C5-T1

Question 13

median n. roots

Answer 13

C6-T1

Question 14

ulnar n. roots

Answer 14

C8-T1

Question 15

what does the superior thoracic artery supply?

Answer 15

1st and 2nd intercostals, superior serratus anterior

Question 16

what does the lateral thoracic artery supply?

Answer 16

lateral breast

Question 17

what does the axillary n. innervate?

Answer 17

deltoid and teres minor

Question 18

what does the radial n. innervate?

Answer 18

triceps brachii

Question 19

what does the musculocutaneous n. innervate?

Answer 19

coracobrachialis, brachialis, biceps brachii

Question 20

what does the long thoracic n. innervate?

Answer 20

serratus anterior

Question 21

what does the median n. innervate?

Answer 21

muscles that flex the wrist

Question 22

What limits ulnar deviation?

Answer 22

radial collateral lig.

Question 23

what limits radial deviation?

Answer 23

ulnar collateral lig.