Week 8

Question 1

glenoid labrum function

Answer 1

deepens socket, limits accessory movement, increases congruency of GHJ. attachment for biceps long head. can be torn in dislocations or biceps traction

Question 2

what is a Blankert Lesion

Answer 2

tear to the anterior glenoid labrum
happens in 59% of first time GHJ dislocations

Question 3

corocohumeral ligament function

Answer 3

resists weight of arm

Question 4

transverse humeral ligament function

Answer 4

converts intertubercular sulcus into bicipital tunnel
prevents bowstring of biceps tendon
holds synovial sheath around biceps in place

Question 5

axillary nerve

Answer 5

C5-6
from post cord of brachial plexus. lat to radial nerve, posterior to axillary artery. passes into axilla, through quadrangular space and curves around neck of humerus

Question 6

musculocutaneous nerve

Answer 6

C5-7
lat chord of brachial plexus. peirces corocobrachialis and descends laterally between biceps brachaii and brachialis. continues as lateral cutaneous nerve.