Axilla And Neurovascular Input

Question 1

What 2 muscles is the anterior wall of the axils formed by?

Answer 1

Pectoralis major and minor

Question 2

What 3 muscles form the posterior wall of the axilla?

Answer 2

Subscapularis, teres major and latissimus dorsi

Question 3

What forms the medial wall of the axilla?

Answer 3

Thoracic wall and serratus anterior muscle

Question 4

What is the lateral wall of the axilla formed by?

Answer 4

Intertubercular groove of the humerus

Question 5

The axillary artery is the continuation of which artery?

Answer 5

Subclavian artery

Question 6

At what anatomical point does the axillary artery begin?

Answer 6

Lateral border of the first rib

Question 7

The axillary artery continues beyond the axilla as which vessel?

Answer 7

Brachial artery

Question 8

At what anatomical point does the axillary artery become the brachial artery?

Answer 8

Inferior border of the teres major muscle

Question 9

The brachial plexus is formed by the ventral rami of…

Answer 9

C5 to T1

Question 10

Which nerve roots form the upper trunk of the brachial plexus?

Answer 10

C5 and C6

Question 11

Which roots form the lower trunk of the brachial plexus?

Answer 11

C8 and T1

Question 12

Which root forms the middle trunk of the brachial plexus?

Answer 12

C7

Question 13

Which artery and vein are the trunks closely related to?

Answer 13

Subclavian artery and vein

Question 14

What are the 5 main terminal branches of the brachial plexus?

Answer 14

Radial nerve
Axillary nerve
Muscolocutaneous nerve
Ulnar nerve
Median nerve