Anatomy of the Hand Review

Question 1

Abductor pollicis brevis: Function

Answer 1

palmar abduction

Question 2

Opponens pollicis: Function

Answer 2

Opposition

Question 3

Flexor pollicis brevis superficial head: Function

Answer 3

thumb MCP flexion, deep head innervated by ulnar nerve.

Question 4

Lumbricals (radial side): Function

Answer 4

MCP flexion and extension of IP joints.

Question 5

Abductor digiti minimi: Function

Answer 5

abduction of 5th digit

Question 6

Opponens digiti minimi: Function

Answer 6

Flexion of MCP joint and opposition of 5th digit.

Question 7

Adductor: Function

Answer 7

adducts CMC joints of thumb

Question 8

Lumbricals (ulnar side): Function

Answer 8

MCP flexion and extension of IP joints of digits 4 and 5.

Question 9

Palmar interossei: Function

Answer 9

adduction and assistance with MCP flexion and extension of IP joints of digits 2 through 5.

Question 10

Dorsal interossei: Function

Answer 10

abduction and assist with MCP flexion and extension of IP joints of digits 2 through 5.

Question 11

Flexor digitorium superficialis (sublimis): Function

Answer 11

flexion of PIP joints.

Question 12

Flexor digitorium profundus: Function

Answer 12

flexion of DIP joints to digits 2 and 3.

Question 13

Flexor pollicis longus: Function

Answer 13

flexion of IP joints of thumb.

Question 14

Flexor digitorum profundus: Function

Answer 14

flexion of DIP joints 4 and 5.

Question 15

Extensor … pg. 160

Answer 15

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