Question

Name one example for each:

a) Finger flexor
b) Finger Extensor
c) Intrinsic muscle of the hand

Answer 1

Examples of muscles involved in hand movement include the flexor digitorum profundus as a finger flexor, the extensor digitorum as a finger extensor, and the lumbricals as intrinsic muscles of the hand.

Step-by-step explanation:

For the following categories of muscles involved in hand movement:

• a) Finger flexor: The flexor digitorum profundus is a muscle that flexes the fingers.
• b) Finger Extensor: The extensor digitorum is responsible for extending the fingers.
• c) Intrinsic muscle of the hand: An example of an intrinsic muscle would be the lumbricals, which flex the metacarpophalangeal joints and extend the interphalangeal joints of the fingers.

The tendons of the forearm muscles, like the flexor digitorum profundus, extend into the hand, aiding in flexion of the fingers, while the extensor digitorum assists with extending them. The intrinsic muscles such as the lumbricals are vital for fine motor control, necessary for tasks like typing or writing.