Hand muscles - Thenar, Hypothenar, Digits 2-4

Question 1

flexor pollicis brevis origin

Answer 1

flexor rentiaculum, scaphoid, trapezium

Question 2

flexor pollicis brevis insertion

Answer 2

lateral side of proximal phalanx of digit 1

Question 3

flexor pollicis brevis nerve

Answer 3

recurrent median nerve

Question 4

flexor pollicis brevis bs

Answer 4

radial

Question 5

flexor pollicis brevis action

Answer 5

flexion of first digit

Question 6

abductor pollicis brevis origin

Answer 6

flexor rentiaculum, scaphoid, trapezium

Question 7

abductor pollicis brevis insertion

Answer 7

lateral side of proximal phalanx of digit 1

Question 8

abductor pollicis brevis nerve

Answer 8

recurrent median nerve

Question 9

abductor pollicis brevis bs

Answer 9

radial

Question 10

abductor pollicis brevis action

Answer 10

abduction of first digit, aids in opposition of first digit

Question 11

adductor pollicis origin

Answer 11

oblique head: base of 2nd and 3rd metacarpal, capitate

transverse head: shaft of 3rd metacarpal

Question 12

adductor pollicis insertion

Answer 12

medial side of proximal phalanx of first digit

Question 13

adductor pollicis nerve

Answer 13

deep ulnar nerve

Question 14

adductor pollicis bs

Answer 14

deep palmar arch

Question 15

adductor pollicis action

Answer 15

adduction of first digit

Question 16

opponens pollicis origin

Answer 16

flexor retinaculum, scaphoid, trapezium

Question 17

opponens pollicis insertion

Answer 17

lateral side of 1st metacarpal

Question 18

opponens pollicis nerve

Answer 18

recurrent median nerve

Question 19

opponens pollicis bs

Answer 19

radial artery

Question 20

opponens pollicis actions

Answer 20

draws 1st metacarpal towards the center of the palm and medially rotates

Question 21

flexor digiti minimi brevis origin

Answer 21

hook and hamate, flexor retinaculum

Question 22

flexor digiti minimi brevis insertion

Answer 22

medial side of proximal phalanx of 5th digit

Question 23

flexor digiti minimi brevis nerve

Answer 23

deep ulnar nerve

Question 24

flexor digiti minimi brevis bs

Answer 24

ulnar artery

Question 25

flexor digiti minimi brevis action

Answer 25

flexion of proximal phalanx for 5th digit

Question 26

abductor digiti minimi origin

Answer 26

pisiform

Question 27

abductor digiti minimi insertion

Answer 27

medial side of proximal phalanx of 5th digit

Question 28

abductor digiti minimi nerve

Answer 28

deep ulnar nerve

Question 29

abductor digiti minimi bs

Answer 29

ulnar artery

Question 30

abductor digiti minimi action

Answer 30

abduction of 5th digit, assist in flexion of 5th digit

Question 31

opponens digiti minimi origin

Answer 31

hook of hamate, flexor retinaculum

Question 32

opponens digiti minimi insertion

Answer 32

medial border of 5th metacarpal

Question 33

opponens digiti minimi nerve

Answer 33

deep ulnar nerve

Question 34

opponens digiti minimi bs

Answer 34

ulnar artery

Question 35

opponens digiti minimi action

Answer 35

draws 5th metacarpal anterior and rotates it

Question 36

palmar interossei origin

Answer 36

palmar surface of 2, 4, 5, metacarpals

Question 37

palmar interossei insertion

Answer 37

bases of proximal phalanges and extensor expansion of digits 2.4.5

Question 38

palmar interossei nerve

Answer 38

deep ulnar nerve

Question 39

palmar interossei bs

Answer 39

palmar metacarpal arteries

Question 40

palmar interossei action

Answer 40

adduction of digits 2,4,5 assist in flexion at MP joints extension and IP joints

Question 41

dorsal interossei origin

Answer 41

adjacent sides of two metacarpals

Question 42

dorsal interossei insertion

Answer 42

bases of proximal phalanges extensor expansion of 2-4th digit

Question 43

dorsal interossei nerve

Answer 43

deep ulnar

Question 44

dorsal interossei bs

Answer 44

dorsal and palmar metacarpal arteries

Question 45

dorsal interossei action

Answer 45

abduction of digits 2-4 flexion at MCP extension at IP joints

Question 46

lumbricals origin

Answer 46

1 and 2 - lateral two tendons of flexor digitorum profundus 3 and 4 - medial three tendons of flexor digitorum profundus

Question 47

lumbricals insertion

Answer 47

lateral sides of extensor expansion of digits 2 to 5

Question 48

lumbricals nerve

Answer 48

1 and 2 - median nerve 3 and 4 - ulnar nerve

Question 49

lumbricals bs

Answer 49

- superficial palmar arch - common palmar digital arteries - deep palmar arch - dorsal digital artery

Question 50

lumbricals action

Answer 50

flexion at MCP joints extension at IP digits 2-5