Muscles Of The Hand

Question 1

What is the primary function of the muscles of the hand?

Answer 1

To facilitate movement and dexterity of the fingers and thumb.

Question 2

Which muscle group is responsible for the opposition of the thumb?

Answer 2

The opponens pollicis muscle.

Question 3

True or False: The intrinsic muscles of the hand include the thenar and hypothenar muscles.

Answer 3

True

Question 4

Fill in the blank: The ____ muscles are located in the palm of the hand and help with fine motor skills.

Answer 4

intrinsic

Question 5

Which muscle is primarily responsible for flexing the fingers?

Answer 5

The flexor digitorum superficialis.

Question 6

What are the two main groups of muscles in the hand?

Answer 6

Intrinsic muscles and extrinsic muscles.

Question 7

Multiple choice: Which muscle is NOT part of the thenar eminence? A) Abductor pollicis brevis B) Flexor pollicis longus C) Opponens pollicis

Answer 7

B) Flexor pollicis longus

Question 8

What is the role of the lumbrical muscles?

Answer 8

To flex the metacarpophalangeal joints and extend the interphalangeal joints.

Question 9

True or False: The adductor pollicis muscle is responsible for moving the thumb away from the palm.

Answer 9

False

Question 10

Fill in the blank: The ____ muscles are responsible for the abduction of the fingers.

Answer 10

dorsal interossei

Question 11

What is the main action of the palmaris brevis muscle?

Answer 11

To help improve grip by tightening the skin over the palm.

Question 12

Multiple choice: Which of the following muscles is mainly responsible for extending the fingers? A) Extensor digitorum B) Flexor digitorum profundus C) Opponens pollicis

Answer 12

A) Extensor digitorum

Question 13

What is the primary function of the hypothenar muscles?

Answer 13

To control the movements of the little finger.

Question 14

True or False: The flexor pollicis brevis has two heads: superficial and deep.

Answer 14

True

Question 15

Fill in the blank: The ____ interossei muscles are responsible for adduction of the fingers.

Answer 15

palmar

Question 16

What is the anatomical location of the intrinsic muscles of the hand?

Answer 16

Within the palm of the hand.

Question 17

Which muscle is responsible for extending the thumb?

Answer 17

The extensor pollicis longus.

Question 18

Multiple choice: Which muscle assists in gripping and pinching movements? A) Abductor digiti minimi B) Extensor indicis C) Flexor carpi radialis

Answer 18

A) Abductor digiti minimi

Question 19

What nerve primarily innervates the thenar muscles?

Answer 19

The median nerve.

Question 20

True or False: The extensor hood mechanism is involved in finger extension.

Answer 20

True

Question 21

Fill in the blank: The ____ muscle is essential for the opposition of the little finger.

Answer 21

opponens digiti minimi

Question 22

What is the primary role of the flexor digitorum profundus?

Answer 22

To flex the distal phalanges of the fingers.

Question 23

Multiple choice: Which muscle is NOT innervated by the ulnar nerve? A) Flexor digitorum profundus B) Dorsal interossei C) Opponens pollicis

Answer 23

C) Opponens pollicis

Question 24

What is the function of the palmar aponeurosis?

Answer 24

To provide support and protection to the underlying structures of the palm.