Articulating Surfaces

Question 1

Describe the articulating surface of the glenoid fossa

Answer 1

> small pear shaped depression on supra lateral aspect of scapula
Covered in hyaline cartilage (thicker at periphery)
1/3 the size of the humeral head but deepened by fibrocartilage labrum

Question 2

Describe the articulating surface of the humeral head

Answer 2

> 2/5 of a sphere
facing superiorly, medially, posterially
Covered in hyaline cartilage (thickest centrally)
sits on v short anatomical neck