Muscles of the Forearm and Hand

Which muscle(s) place your digits into the writing postion?

Lumbrical mm.

Which structure does NOT pass through the carpel tunnel?

Ulnar a.

Abduction of the thumb is when the thumb is moved __________. (Note: Remember to start from the anatomical position.)

anteriorly

Muscles found within the posterior forearm compartment are responsible for _______.

extension of the fingers

The __________ muscle is absent on one or both sides in about 14% of people.

palmaris longus

Which of the following muscles is innervated by the ulnar nerve?

Abductor digiti minimi m.

Which of the following muscles does NOT extend the wrist?

Brachioradialis m.

What anterior forearm muscle typically has a dual innervation?

Flexor digitorum profundus m.

Which of these muscles is an intrinsic hand muscle that moves the thumb (i.e. the first digit)?

Flexor pollicis brevis

Jane slipped on the ice and hit her arm when she fell, which resulted in a medial epicondyle fracture and damage to the muscles originating from this location. Which deficit is MOST likely to be encountered due to Jane's injury?

Inability to flex the wrist