The axilla Flashcards Preview

Anatomy > The axilla > Flashcards

Flashcards in The axilla Deck (15):
1

Why is the Axilla clinically important?

It contains the long thoracic nerve which can be damaged during a lymph node biopsy.

2

How can long thoracic nerve damage manifest itself?

A winged scapula.

3

What is thoracic outlet syndrome?

Pain in the limb due to compression on the nerves.

4

What forms the apex of the axilla?

The clavicle

5

What forms the lateral wall of the axilla?

The humerus

6

What forms the medial wall of the axilla?

The thoracic wall

7

What forms the anterior wall of the axilla?

Pectoralis major

8

What forms the posterior wall of the axilla?

The subscapularis, latissumus dorsi and teres major.

9

What is the contents of the axilla?

The axillary artery and vein
Lymph nodes
Biceps brachii and Coracobrachialis tendons
Brachial plexus

10

What nerve roots form the brachial plexus?

C5, C6, C7, C8, T1

11

Which nerve roots form the superior trunk?

C5 and C6

12

Which nerve roots form the middle trunk?

C7

13

Which nerve roots form the inferior trunk?

C8 and T1

14

Which nerves come from the Brachial Plexus?

Musculocutaneous
Axillary
Median
Radial
Ulnar

15

What are the 5 sections of the Brachial Plexus?

Roots
Trunks
Divisions
Cords
Branches