Axilla Region

Question 1

In layman so terms, where is the Axilla region?

Answer 1

The arm pit

Question 2

In more technical terms were is the Axilla region?

Answer 2

Area that lies underneath the glenohumeral joint(upper limb thoracic joint)

Question 3

What are the 5 dimensions of the Axilla region?

Answer 3

1 APEX
2 LATERAL WALL
3 MEDIAL WALL
4 ANTERIOR WALL
5 POSTERIOR WALL

Question 4

At what point of movement is the Axilla contents most vulnerable and why?

Answer 4

Full upper limb abduction the size of the Axilla region is smallest at this point.

Question 5

What makes the anterior wall of the Axilla region?

Answer 5

Pectoralis major and Subclavius muscle

Question 6

The medial wall is made by what structures?

Answer 6

Serratus anterior and the thoracic wall which is made up of ribs and intercostal muscles

Question 7

What is also known as the axillary inlet?

Answer 7

The apex

Question 8

What is made up of the first rib, superior scapula border and the posterior border of the clavicle?

Answer 8

The apex of the Axilla

Question 9

The intertubercular groove forms what Axilla wall?

Answer 9

Lateral

Question 10

What structures from the posterior wall of the Axilla?

Answer 10

Subcapularis, teres major and latissimus dorsi

Question 11

What are the three routes of exit for blood vessels and nerves of the axilla?

Answer 11

Immediately inferior lateral to upper lim- majority of Axilla content exit here.
Quadrangle space- gap in posterior Axilla wall- supply post upper limb and shoulder.
Clavicopectoral triangle- anterior wall opening bounded by the pectoralis major, deltoid and clavicle

Question 12

The cephalon vein enters the Axilla by the same route as the medial and lateral pectoral nerves leave, what route is this?

Answer 12

Clavicopectoral triangle

Question 13

Axillary nerve and posterior sir uncles numeral artery pass through what route of exit of the Axilla?

Answer 13

Quadrangle space

Question 14

What’s in the axillary space?

Answer 14

Axillary artery 
Axillary vein 
Brachial plexus 
Biceps brachii and coracobrachialis
Axillary lymph nodes

Question 15

What do the brachial nerves supply and where do they originate?

Answer 15

Peripheral nerves from the spine supplying the upper limb

Question 16

The cephalon and basil aid veins merge to the main drainage vein of the upper limb which is known as?

Answer 16

Axillary vein

Question 17

Where is the coracoid process?

Answer 17

The scapula

Question 18

What are biceps brachii and coracobrachialis and where do they attach?

Answer 18

Muscles and tendons attach to the coracoid process

Question 19

What in the axillary region is a nonspecific indicator of breast cancer in women?

Answer 19

Enlargement of axillary lymph nodes. The nodes drain upper limb lymph and the pectoral region

Question 20

How many branches does the axillary artery have?

Answer 20

Three parts

Question 21

What iatrogenic cause commonly results in scapula outlet

Answer 21

Axilla lymph node removal as a part of breast cancer treatment- thoracic nerve damaged during surgery

Question 22

What is thoracic outlet syndrome?

Answer 22

Compression of vessels and nerves in the apex of the Axilla

Question 23

What makes the medial wall of the axillary?

Answer 23

Serratus anterior and thoracic wall