Revision: hand movements -> muscles -> nerves

Question 1

extension of thumb muscles, compartment of muscles and the nerves that control these muscles

Answer 1

EPL, EPB, AbPL

found in the posterior forearm

all controlled by the radial nerve

Question 2

flexion of thumb muscles, compartment of muscles and the nerves that control these muscles

Answer 2

FPL, FPB

anterior forearm and thenar muscles

median nerve

Question 3

abduction of thumb muscles, compartment of muscles and the nerves that control these muscles

Answer 3

AbPL, AbPB

posterior of forearm and thenar muscles

radial and median nerve

Question 4

adduction of thumb muscles, compartment of muscles and the nerves that control these muscles

Answer 4

AdP, 1st dorsal interossei

adductor and interosseous compartments

ulnar nerve

Question 5

opposition of thumb muscles, compartment of muscles and the nerves that control these muscles

Answer 5

opponens pollicis

thenar compartment

median nerve

Question 6

extension of specifically little finger muscles, compartment of muscles and the nerves that control these muscles

Answer 6

EDM

4arm

radial nerve

Question 7

abduction of specifically little finger muscles, compartment of muscles and the nerves that control these muscles

Answer 7

AbDM

hypothenar

ulnar nerve

Question 8

flexion of specifically little finger muscles, compartment of muscles and the nerves that control these muscles

Answer 8

FDMB

hypothenar

ulnar nerve

Question 9

opposition of little finger muscles, compartment of muscles and the nerves that control these muscles

Answer 9

OppDM

hypothenar

ulnar nerve

Question 10

extension of specifically index finger muscles, compartment of muscles and the nerves that control these muscles

Answer 10

Ex Ind

posterior deep forearm

radial nerve

Question 11

abduction of wrist muscles, compartment of muscles and the nerves that control these muscles

Answer 11

ECRB, ECRL, FCR

posterior and anterior forearm

radial and median

Question 12

adduction of wrist muscles, compartment of muscles and the nerves that control these muscles

Answer 12

FCU, ECU

anterior and posterior forearm

ulnar and radial nerve

Question 13

flexion of wrist muscles, compartment of muscles and the nerves that control these muscles

Answer 13

Palm Long, FCR, FCU

anterior forearm

median and ulnar

Question 14

extension of wrist muscles, compartment of muscles and the nerves that control these muscles

Answer 14

ECRB, ECRL, ECU

posterior forearm

radial nerve

Question 15

Flexion of medial four fingers muscles, compartment of muscles and the nerves that control these muscles

Answer 15

MCPJs: FDS, lumbricals and dorsal interossei

4th and 5th fingers at distal IPJs: FDP (med)

2nd and 3rd fingers at distal IPJs: FDP (lat)

proximal IPJs: FDS

lumbricals in central compartment, dorsal interossei in interosseous compartments, rest in anterior forearm

med. FDP, dorsal interossei and lat. 2 lumbricals by ulnar nerve, rest by median nerve

Question 16

adduction of medial 4 fingers muscles, compartment of muscles and the nerves that control these muscles

Answer 16

palmar interossei

interosseous compartment

ulnar nerve

Question 17

abduction of fingers of hand muscles, compartment of muscles and the nerves that control these muscles

Answer 17

2nd and 4th fingers by dorsal interossei, 5th is AbDM

interosseous compartment, hypothenar compartment

ulnar nerve

Question 18

extension of medial 4 fingers muscles, compartment of muscles and the nerves that control these muscles

Answer 18

primarily at MCPJs and secondarily at IPJs: lumbricals, dorsal interossei, Ex Dig

central compartment, interosseous compartment, posterior 4arm

ulnar nerve (aside from medial 2 lumbricals and ED - median and radial nerves)