axilla and shoulder

Question 1

what forms the anterior border of the axilla

Answer 1

• pec major
• clavicle
• pec minor and subclavius muscle

Question 2

what forms the psoterior border of the axilla

Answer 2

• teres major and lat dorsi
• scapula
• subscapularis

Question 3

what forms the medial wall of the axilla

Answer 3

• ribs and intercostals

- serratus anterior

Question 4

what forms the lateral wall of the axilla

Answer 4

• bicipital groove

- long head of bicep and coracobrachialis

Question 5

what forsm the apex of the axilla

Answer 5

• root of neck
• superior border of scap
• clavicle
• 1st rib

Question 6

what forms the base of the axilla

Answer 6

skin
fascia
hair

Question 7

what branches off of the 1st part of axillary artery

-where does it supply?

Answer 7

• superior thoracic

- 1st two intercostal

Question 8

what branches off of the 2nd part of the axillary artery

-where does it supply?

Answer 8

• thoracoacromial: shoulder girdle (CAPD)

- lateral thoracic: lateral chest/serratus anterior

Question 9

what branches off of the 3rd part of the axillary artery

-what does it supply?

Answer 9

• anterior humeral circumflex: ant arm
• posterior humeral circumflex: post arm
• subscapular

Question 10

what are the branches of the subscapular artery

-what do they supply?

Answer 10

• circumflec scapular: anastomosis w/ transverse cervical and suprascapular
• thoracodorsal: lat dorsi