Wrist and Hand (chart)

Question 1

what is the proximal origin of the abductor pollicis brevis?

Answer 1

superficial flexor retinaculum and bones of scaphoid and trapezium bone.

Question 2

what is the distal insertion of the flexor policies braves and abductor pollicis brevis?

Answer 2

lateral base of proximal phalanx of thumb

Question 3

what is the action of the abductor policies brevis?

Answer 3

abducts and assists in opposition of thumb

Question 4

what muscles innervate on the median nerve?

Answer 4

• abductor pollicis brevis
• flexor pollicis brevis
• opponens pollicis
• lumbricais is 1 and 2

Question 5

what is the proximal origin of the opponens pollicis and flexor pollicis brevis?

Answer 5

flexor retinaculum and tubercle of trapezium bone

Question 6

what is the action of the flexor pollicis brevis?

Answer 6

flexes proximal phalanx of thumb

Question 7

what is the distal insertion of the opponens pollicis?

Answer 7

lateral side of 1st metacarpal

Question 8

what is the action of the opponens pollicis?

Answer 8

draws 1st metacarpal forward and rotates it medially

Question 9

what muscles innervate at the ulnar nerve?

Answer 9

• adductor pollicis
• abductor digiti minimi (hand)
• flexor digiti minimi brevis (hand)
• opponens digiti minimi
• lumbricais is 3 and 4
• dorsal interosseous muscles
• palmer intersseous muscles

Question 10

what is the proximal origin of the adductor pollicis; oblique head?

Answer 10

bases of 2nd and 3rd metacarpal bones capitate bone and adjacent bones

Question 11

what is the proximal origin of the adductor pollicis; transverse head?

Answer 11

anterior surface of 3rd metacarpal

Question 12

what is the distal insertion of the adductor pollicis?

Answer 12

medial side of base of proximal phalanx of thumb

Question 13

what is the action of the adductor policis?

Answer 13

adducts thumb

Question 14

what is the proximal origin of the palmaris brevis?

Answer 14

palmer aponeurosis and flexor retinaculum

Question 15

what is the distal insertion of the palmaris brevis?

Answer 15

skin of medial border of palm.

Question 16

what is the innervation of the palmaris brevis?

Answer 16

superficial palmer branch of ulnar nerve

Question 17

what is the action of the palmaris bravis?

Answer 17

deepens hollow of hand, assists grip

Question 18

what is the proximal origin of the abductor digiti minimi (hand)?

Answer 18

pisiform bone, tendon of flexor carpi ulnaris

Question 19

what is the distal insertion of the flexor digiti minimi and abductor digiti minimi (hand)?

Answer 19

medial side of base of proximal phalanx of little finger (5th digit)

Question 20

what is the action of the abductor digiti minimi (hand)?

Answer 20

abducts the little finger (5th digit)

Question 21

what is the proximal origin of the opponens digiti minimi and flexor digiti minimi brevis (hand)?

Answer 21

flexor retinaculum and hook of hamate bone

Question 22

what is the action of the flexor digiti minimi brevis (hand)?

Answer 22

flexes proximal phalanx of the little finger

Question 23

what is the distal insertion of the opponens digiti minimi?

Answer 23

palmer surface of 5th metacarpal

Question 24

what is the action of the opponens digiti minimi?

Answer 24

draws 5th metacarpal anteriorly and rotates it to face thumb

Question 25

what is the proximal origin of lumbricais 1 and 2?

Answer 25

lateral two tendons of flexor digitorum profundus

Question 26

what is the distal insertion of the lumbricais 1 and 2?

Answer 26

lateral sides of extensor expansion on of digits 2 and 3

Question 27

what is the action of the lumbricais 1, 2, 3, 4?

Answer 27

extends digits at interphalangeal joints and flexes metacarpapophalangeal joints

Question 28

what is the proximal origin of lumbricais 3 and 4?

Answer 28

medial three tendons of flexor digitorum profundus

Question 29

what is the distal insertion of the lumbricais 3 and 4?

Answer 29

lateral sides of extensor expansion on of digits 4 and 5

Question 30

what is the proximal origin of the dorsal interosseous muscles?

Answer 30

adjacent sides of two metacarpal bones

Question 31

what is the distal insertion of the dorsal interosseous muscles?

Answer 31

base of proximal phalanges, and extensor expansion of digits 2-4

Question 32

what is the action of the dorsal interosseous muscles?

Answer 32

abducts digits from axial line of hand (3rd digit); flex digits at metacarpophalangeal joint and extend interphalangeal joints

Question 33

what is the proximal origin of the palmar interosseous muscles?

Answer 33

side of metacarpals 2,4, and 5

Question 34

what is the distal insertion of the palmar interosseous muscles?

Answer 34

bases of proximal phalanges, and extensor expansion of digits 2,4,5

Question 35

what is the action of the palmar interosseous muscles?

Answer 35

adducts digits toward axial line of hand (3rd digit); flexes digits at metacarpophalangeal joint and extends interphalangeal joints