5.5 Appendicular skeleton

Question 1

Four muscles of the rotator cuff

Answer 1

• Supraspinatus
• infraspinatus
• subscapularis
• teres minor

Question 2

Radius permits what of the antebrachium

Answer 2

Pronation and supination

Question 3

Ulna permits what of the antebrachium

Answer 3

Flexion and extension

Question 4

Boxers fracture

Answer 4

Third metacarpal breaks from excess force (supported by radius)

Question 5

Brawlers fracture

Answer 5

Breaking of other metacarpals from striking with wrong digits (not supported by radius)

Question 6

Ala are

Answer 6

Wings of the pelvis

Question 7

In a female the pubic angle is

Answer 7

Obtuse, wider, >90 degrees

Question 8

In a male the pubic angle is

Answer 8

Acute, narrow, less than 90 degree

Question 9

Three parts of pelvis that fuse

Answer 9

Ilium (upper), pubis (lower front), ischium (lowest)

Question 10

ACL

Answer 10

Anterior Cruciate ligament

Question 11

PCL

Answer 11

Posterior cruciate ligament

Question 12

MCL vs LCL

Answer 12

Medial (tibial) collateral ligament
Lateral (fibular) collateral ligament

Question 13

Different shape of minisci in knee causes

Answer 13

Rotation, tightening of ligaments (ACL, PCL, MCL, LCL)

Question 14

Slight rotation when locking knees at full extension, caused by difference in shape or menisci
T or F

Answer 14

True

Question 15

Ankle bones called

Answer 15

Medial malleolus and lateral malleolus