Axilla & Arm

Question 1

Axilla LO 2

actions and innervation of: anconeous

& spinal cord segment

Answer 1

extension of the elbow

radial nerve

C7-8

attachments: lateral epicondyl of humerous to lateral surface of the olecranon process

Question 2

Axilla LO 2

actions and innervation of: biceps brachii

& spinal cord segment

Answer 2

flexion of the shoulder and elbow, supination of the forearm

(flexion of shoulder bc on scapula at the coracoid process)

musculoculatenous

C5-6

from coracoid process (short head) & supraglenoid tubercle (long head) of the scapula to the radial tuberosity & the deep antebrachial fascia (through the bicipital aponeurosis

Question 3

Axilla LO 2

actions and innervation of: brachialis

& spinal cord segment

Answer 3

flexion of the elbow

musculocutaneous

C5-6

from the dital anterior shaft of the humerus & lateral & medial intermuscular septa to the coranoid process and ulnar tuberosity

Question 4

Axilla LO 2

actions and innervation of: coracobrachialis

& spinal cord segment

Answer 4

flexion and adduction of the shoulder
(bc on coracoid)
musculocutaneous

C6-7

from the coracoid prcess to the proximal medial shaft of the humerus

Question 5

Axilla LO 2

actions and innervation of: triceps brachii

& spinal cord segment

Answer 5

extension of the shoudler (long head) & distal posteromedial (medial) ahaft of the humerus to the olecranon process of the ulna

radial nerve

C6-T1

from the infraglenoid tubercle of the scapula (long head) & proximal posterolateral (lateral head) & distal posteromedial (medial) shiaft of the himerus to the olecranon process of the ulna

Question 6

Axilla LO 3

boundaries of axilla

Answer 6

1st rib

Question 7

Arm LO 8

location and contents of: triangular space

Answer 7

location: inferior to meres minor, superior to teres major, medial to shaft of humerous, lateral to long head of the triceps brachii

contents: circumflex scapular artery (which comes off subscapular artery and bifricates with thoracodorsal artery)

Question 8

Arm LO 8

location and contents of: triceps hiatus

Answer 8

location: medial to long head triceps and lateral to short head tricpes

contains: profunda brachii and radial nerve

Question 9

Arm LO 3

boundaries of: axilla

and what does this region mean?

Question 10

Axillary LO 3

contents of: axilla

and what is the axilla?