Hand Anatomy

Question 1

Finger extension muscles

Answer 1

Extensor Digitorum Communis
Extensor Digiti Minimi
Extensor Indicis 
Extensor Pollicis Brevis (ex)
Abductor Pollicis Longus (ex)

Question 2

Finger flexion muscles

Answer 2

Flexor Pollicis Brevis
Flexor Digiti Minimi
Flexor Digitorum Superficialis
Flexor Digitorum Profundus

Question 3

Radial Nerve muscles

Answer 3

Extensor Digitorum Communis
Extensor Digiti Minimi
Extensor Indicis 
Extensor Pollicis Brevis (ex)
Abductor Pollicis Longus (ex)
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Carpi Ulnaris
Supinator

Question 4

Median Nerve muscles

Answer 4

Flexor Digitorum Superficialis
Flexor Pollicis Brevis (U)
Flexor Digitorum Profundus (IF,MF)
Flexor Carpi Radialis 
Palmaris Longus 
Pronator Teres
Pronator Quadratus 
Abductor Pollicis Brevis 
Opponens Pollicis

Question 5

Ulnar Nerve muscles

Answer 5

Flexor Pollicis Brevis  (M)
Flexor Digiti Minimi
Flexor Digitorum Profundus (RF,SF)
Flexor Carpi Ulnaris 
Adductor Pollicis
Abductor Digiti Minimi
Opponens Digiti Minimi
Flexor Digiti Minimi
Dorsal Interosseous 
Palmar Interosseous

Question 6

MCP extension (IF, MF, 2RF); Pulls on SF too

Answer 6

Extensor Digitorum Communis

Question 7

SF MCP extension

Answer 7

Extensor Digiti Minimi

Question 8

IF MCP extension; runs side by side EDC

Answer 8

Extensor Indicis

Question 9

Thumb MCP extension

Answer 9

Extensor Pollicis Brevis (ex)

Question 10

Thumb abduction; contributes to extension

Answer 10

Abductor Pollicis Longus (ex)

Question 11

Thumb MCP flexion

Answer 11

Flexor Pollicis Brevis

Question 12

Flexor Digiti Minimi

Answer 12

SF flexion

Question 13

PIP flexion; one muscle belly to 4 tendons; some don’t have in SF

Answer 13

Flexor Digitorum Superficialis

Question 14

DIP flexion

Answer 14

Flexor Digitorum Profundus

Question 15

Wrist extension; radial deviation

Answer 15

Extensor Carpi Radialis Longus

Question 16

Wris extension

Answer 16

Extensor Carpi Radialis Brevis

Question 17

Flexor Carpi Radialis

Answer 17

Wrist flexion; radial deviation

Question 18

Wrist flexion; Spare! Can see it pop out

Answer 18

Palmaris Longus

Question 19

Wrist extension, ulnar deviation

Answer 19

Extensor Carpi Ulnaris

Question 20

Wrist flexion, ulnar deviation

Answer 20

Flexor Carpi Ulnaris

Question 21

Abductor Pollicis Longus (ex)

Answer 21

Thumb abduction; contributes to extension

Question 22

Abductor Pollicis Brevis

Answer 22

Thumb abduction; largest muscle in thenar eminence

Question 23

Thumb MCP extension

Answer 23

Extensor Pollicis Brevis (ex)

Question 24

Thumb MCP flexion

Answer 24

Flexor Pollicis Brevis

Question 25

Thumb opposition; rotates thumb

Answer 25

Opponens Pollicis

Question 26

Adductor Pollicis

Answer 26

Thumb adduction

Question 27

SF abductor

Answer 27

Abductor Digiti Minimi

Question 28

SF opposition; rotation

Answer 28

Opponens Digiti Minimi

Question 29

SF flexion

Answer 29

Flexor Digiti Minimi

Question 30

SF MCP extension

Answer 30

Extensor Digiti Minimi (ex)

Question 31

MCP extension (IF, MF, 2RF); Pulls on SF too

Answer 31

Extensor Digitorum Communis

Question 32

SF MCP extension

Answer 32

Extensor Digiti Minimi

Question 33

IF MCP extension;; runs side by side EDC

Answer 33

Extensor Indicis

Question 34

PIP flexion; one muscle belly to 4 tendons; some don’t have in SF

Answer 34

Flexor Digitorum Superficialis

Question 35

DIP flexion

Answer 35

Flexor Digitorum Profundus

Question 36

M(IF, MF)

U(RF,SF)

Answer 36

Flexor Digitorum Profundus

DIP flexion

Question 37

DAB! Abduction of fingers (4)

Answer 37

Dorsal Interosseous

Question 38

PAD! Adduction of fingers (none for MF)

Answer 38

Palmar Interosseous

Question 39

Thumb Muscles

Answer 39

Abductor Pollicis Longus (ex)
Abductor Pollicis Brevis 
Extensor Pollicis Brevis (ex)
Flexor Pollicis Brevis 
Opponens Pollicis
Adductor Pollicis

Question 40

Small Finger muscles

Answer 40

Abductor Digiti Minimi
Opponens Digiti Minimi
Flexor Digiti Minimi
Extensor Digiti Minimi (ex)