Palmar Musculature | The Thenar Muscles

The video tutorial discusses the muscles controlling the wrist and hand, focusing on extrinsic muscles located in the forearm and intrinsic muscles within the hand. It highlights the role of intrinsic muscles in fine motor control and introduces the thenar muscles, which are responsible for thumb movements. The tutorial provides detailed explanations of the abductor pollicis brevis, flexor pollicis brevis, and opponens pollicis muscles, including their origins, insertions, actions, and innervation by the median nerve's recurrent branch.

What are the extrinsic muscles of the hand and where are they located?

Describe the difference between intrinsic and extrinsic muscles of the hand.

What is the function of the thenar muscles?

What is the significance of the recurrent branch of the median nerve in relation to the thenar muscles?

Explain the role of the abductor pollicis brevis muscle.

What is the origin and insertion of the flexor pollicis brevis?

How does the opponens pollicis muscle contribute to thumb movement?