2. Humerus and Scapula: Posterior View

Question 1

Identify 1 - 2

Answer 1

1. Clavicle (cut)
2. Suprascapular notch

Question 2

Identify 3 - 6

Answer 2

3. Superior angle
4. Supraspinous fossa
5. Spine
6. Infraspinous fossa

Question 3

Identify 7 - 9

Answer 3

7. Medial epicondyle
8. Trochlea of humerus
9. Olecranon fossa

Question 4

Identify 10 - 11

Answer 4

10. Deltoid tuberosity
11. Head of humerus

Question 5

Posteriorly, the scapula displays a prominent spine that separates the (1)___ and (2)___ fossae.

Answer 5

1. supraspinous
2. infraspinous

Question 6

The clavicle is the 1st bone to ossify but the last bone to fuse and is formed by ___ (which ossification types?)

Answer 6

both endochondral and intramembranous ossification.

Question 7

the depression above the trochlea is called the olecranon fossa, which accommodates the ____ when the elbow is extended fully.

Answer 7

the olecranon of the ulna

Question 8

the depression above the trochlea is called the ___, which accommodates the olecranon of the ulna when the elbow is extended fully.

Answer 8

olecranon fossa

Question 9

Fractures of the surgical neck of the humerus are common and may injure the ____ from the brachial plexus.

Answer 9

axillary nerve

Question 10

Fractures of the surgical neck of the humerus are common and may injure the axillary nerve from the (1)___.

A midshaft fracture of the humerus may injure the (2)___

Answer 10

1. brachial plexus
2. radial nerve.

Question 11

Midshaft on the humerus is the deltoid tuberosity, the insertion point for the ___ muscle.

Answer 11

deltoid