Week 5: Elbow Function and Muscle Recruitment

Question 1

What is a spurt muscle?

Answer 1

a muscle with an insertion close to the joint moving and an origin far away

Question 2

What is a shunt muscle?

Answer 2

a muscle with an origin close to the joint moving and an insertion far away

Question 3

What are the superficial muscles that flex the forearm and wrist?

Answer 3

pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, flexor carpi ulnaris

Question 4

What is the common attachment of the superficial muscles that flex the forearm and wrist?

Answer 4

medial epicodyle (weak elbow flexors)

Question 5

What are the deep muscle that flex the forearm and wrist?

Answer 5

flexor digitorum profundus, flexor pollis longus, pronator quadratus

Question 6

What are the superficial muscles that extend the forearm and wrist?

Answer 6

extensor carpi radlialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris

Question 7

What is the common attachment for the superficial muscles that extend the forearm and wrist? (except for extensor carpi radialis)

Answer 7

lateral epicondyle

Question 8

What are the deep muscles that extend the forearm and wrist?

Answer 8

supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus, extensor indicis

Question 9

Where are the flexors of the forearm and wrist located?

Answer 9

anterior side (palmar)

Question 10

Where are the extensors of the forearm and wrist located?

Answer 10

posterior side (dorsal)