Chapter 9-Upper Extremity

Question 1

1) What tendon in the elbow attaches to the olecranon process?
a. Ulnar tendon
b. Radial tendon
c. Triceps bacchii tendon
d. Supinator

Answer 1

c. Triceps bacchii tendon

Question 2

2) Which artery runs inferiorly on the medial side of the humerus, then continues anteriorly to the cubital fossa of the elbow and is the principal arterial supply to the arm?
a. Axillary
b. Brachial
c. Radial
d. Ulnar

Answer 2

b. Brachial

Question 3

3) Which nerve courses through the carpal tunnel?
a. Ulnar
b. Median
c. Radial
d. Navicular

Answer 3

b. Median

Question 4

4) The carpal articular surface of the distal radius articulates with which carpal bones?
a. Lunate and triquetral
b. Triquetral and scaphoid
c. Scaphoid and lunate
d. Triquetral and pisiform

Answer 4

c. Scaphoid and lunate

Question 5

5) Where is the thenar crease located?
a. Palm side between 3rd-5th MT head
b. Dorsal side of the wrist
c. Volar side of the wrist
d. Palm side of the thumb

Answer 5

d. Palm side of the thumb

Question 6

6) Where does the biceps attach distally?
a. Radial head
b. Radial neck
c. Radial tuberosity
d. Coronoid process

Answer 6

c. Radial tuberosity

Question 7

7) The primary function of the glenoid labrum is to:
a. Deepen the glenoid fossa
b. Lubricate the joint capsule
c. Serve as an attachment site for the rotator cuff muscles
d. Protect the articular surface of the humeral head

Answer 7

a. Deepen the glenoid fossa

Question 8

8) The rotator cuff is made up of which four muscles?
a. Supraspinatus, infraspinatus, teres major, subscapularis
b. Supraspinatus, infraspinatus, teres minor, subscapularis
c. Supraspinatus, infraspinatus, deltoid, teres minor
d. Supraspinatus, infraspinatus, deltoid, teres major

Answer 8

b. Supraspinatus, infraspinatus, teres minor, subscapularis

Question 9

9) What is the major stabilizing mechanism for the distal radioulnar joint?
a. Carpel tunnel
b. Triangular fibrocartilage complex
c. Carpel bridge
d. Flexor retinaculum

Answer 9

b. Triangular fibrocartilage complex

Question 10

10) Which muscle is the main flexor of the forearm?
a. Brachialis
b. Triceps brachii
c. Biceps brachii
d. Pronator teres

Answer 10

c. Biceps brachii

Question 11

11) Which rotator cuff muscle is located on the anterior surface of the scapula?
a. Supraspinatus
b. Infraspinatus
c. Teres minor
d. Subscapularis

Answer 11

d. Subscapularis

Question 12

12) Which rotator cuff tendon is the most frequently injured?
a. Supraspinatus
b. Infraspinatus
c. Teres minor
d. Subscapularis

Answer 12

a. Supraspinatus

Question 13

13) What ligamentous structure spans the wrist to create an enclosure for the passage of the tendons?
a. Carpel tunnel
b. Triangular fibrocartilage complex
c. Carpal bridge
d. Flexor retinaculum

Answer 13

d. Flexor retinaculum