Anatomy

Question 1

Unhappy triad

Answer 1

ACL, MCL, Medial meniscus; lateral force applied to a planted leg

Question 2

Positive anterior drawer sign

Answer 2

ACL tear

Question 3

Abnormal passive abduction of knee

Answer 3

MCL tear

Question 4

Clinically important landmark: pudendal nerve block

Answer 4

Ischial spine

Question 5

Clinically important landmark: McBurney’s point

Answer 5

2/3 from umbilicus to ASIS

Question 6

Clinically important landmark: LP

Answer 6

Iliac crest

Question 7

Name the bones of the wrist

Answer 7

From lateral to medial (look at your left wrist)
Proximal: Scaphoid, lunate, triquetrum, pisiform
Distal: Trapezium, trapeziod, capatate, hamate

Question 8

The most commonly fractured wrist bone which is prone to avascular necrosis owing to retrograde blood supply.

Answer 8

Scaphiod

Question 9

Dislocation of the lunate may cause

Answer 9

Acute carpal tunnel syndrome

Question 10

Carpal tunnel syndrome

Answer 10

Entrapment of median nerve in carpal tunnel; nerve compression can lead to paresthesia, pain, numbness in distribution of median nerve

Question 11

Shoulder muscles that form the rotator cuff

Answer 11

SItS
Supraspinatus: abducts arm initially [before deltoid]
Infraspinatus: laterally rotates arm [pitching]
Teres minor: Adducts and laterally rotates
Subscapularis: medialy rotates and adducts
* Innervated by C5-6