Upper Extremity

Question 1

What is the primary function of the rotator cuff muscles?

Answer 1

To stabilize the shoulder joint and allow for a wide range of motion.

Question 2

True or False: The scapula is also known as the shoulder blade.

Answer 2

True

Question 3

Fill in the blank: The ________ joint is primarily responsible for shoulder abduction.

Answer 3

glenohumeral

Question 4

Which muscle is the main mover in shoulder flexion?

Answer 4

Anterior deltoid

Question 5

What are the four muscles that make up the rotator cuff?

Answer 5

Supraspinatus, Infraspinatus, Teres Minor, Subscapularis

Question 6

True or False: The biceps brachii assists in shoulder adduction.

Answer 6

False

Question 7

What type of joint is the elbow?

Answer 7

Hinge joint

Question 8

Multiple Choice: Which of the following muscles is responsible for elbow extension? A) Biceps B) Triceps C) Brachialis

Answer 8

B) Triceps

Question 9

What is the role of the scapulothoracic joint?

Answer 9

To provide movement and stability to the shoulder girdle.

Question 10

True or False: The wrist is composed of eight carpal bones.

Answer 10

True

Question 11

Fill in the blank: The ________ muscle is primarily responsible for wrist flexion.

Answer 11

Flexor carpi radialis

Question 12

What is the main action of the pectoralis major muscle?

Answer 12

Shoulder adduction and internal rotation.

Question 13

Multiple Choice: Which of the following is NOT a function of the upper extremity? A) Manipulation B) Locomotion C) Communication

Answer 13

B) Locomotion

Question 14

What are the two primary movements of the shoulder joint?

Answer 14

Flexion/extension and abduction/adduction.

Question 15

True or False: The humerus is the bone of the upper arm.

Answer 15

True

Question 16

What is the primary function of the trapezius muscle?

Answer 16

To move, rotate, and stabilize the scapula.

Question 17

Fill in the blank: The ________ nerve innervates the deltoid muscle.

Answer 17

axillary

Question 18

Which movement involves moving the arm away from the body?

Answer 18

Abduction

Question 19

True or False: The ulna is located on the lateral side of the forearm.

Answer 19

False

Question 20

What are the primary functions of the flexor muscles of the forearm?

Answer 20

To flex the wrist and fingers.

Question 21

Multiple Choice: Which muscle is known for its role in shoulder external rotation? A) Subscapularis B) Infraspinatus C) Teres Major

Answer 21

B) Infraspinatus

Question 22

What is the significance of the anatomical snuffbox?

Answer 22

It is a triangular depression on the lateral aspect of the wrist that contains important tendons and the radial artery.

Question 23

Fill in the blank: The ________ joint allows for pronation and supination of the forearm.

Answer 23

radioulnar

Question 24

What is the primary action of the latissimus dorsi muscle?

Answer 24

Shoulder extension, adduction, and internal rotation.

Question 25

True or False: The radial nerve is responsible for wrist flexion.

Answer 25

False

Question 26

What is the role of the forearm extensor muscles?

Answer 26

To extend the wrist and fingers.