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Human Dissection > 7: Muscles of Hands and Feet > Flashcards

7: Muscles of Hands and Feet Flashcards

1
Q

Flexion of wrist, hand, an dfingers

A

flexor carpi radialis, palmaris longus, flexor carpi ulnaris

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2
Q

flexor carpi radialis OIA

A

O: medial epicondyle of humerus
I: base of 2nd and 3rd metacarpal bones
A: flexes and abducts hand at wrist

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3
Q

palmaris longus OIA

A

O: medial epicondyle of humerus
I: flexor retinaculum and palmar aponeurosis
A: flexes wrist weakly

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4
Q

flexor carpi ulnaris OIA

A

O: medial epicondyle of humerus, olecranon and posterior surface of ulna
I: pisiform and hamate bones, base of 5th metacarpal
A: flexes and adducts hand

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5
Q

extension of the hand

A

extensor carpi radialis lungus/brevis, extensor digitorum, extensor carpi ulnaris

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6
Q

extensor carpi radialis longus OIA

A

O: lateral supracondylar ridge of humerus
I: base of 2nd metacarpal bone
A: extends wrist abducts hand

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7
Q

extensor carpi radialis brevis OIA

A

O: lateral epicondyle of humerus
I: base of 3rd metacarpal bone
A: extends wrist, abducts hand

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8
Q

extensor digitorum OIA

A

O: lateral epicondyle of humerus
I: distal and middle phalanges of finger 2-5
A: extends wrist, extends 2nd-5th MP joints, PIP joints, and DIP joints

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9
Q

extensor carpi ulnaris OIA

A

O: lateral epicondyle of humerus, posterior border of ulna
I: base of 5th metacarpal bone
A: extends wrist, adducts hand`

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10
Q

groups of hand muscles

A

thenar muscles, intermediate muscles, and hypothenar muscles

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11
Q

thenar muscles

A

flexor pollicis brevis and abductor pollicis brevis

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12
Q

flexor pollicis brevis OIA

A

O: flexor retinaculum, trapezium
I:proximal phalanx of thumb
A: flexes thumb

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13
Q

abductor pollicis brevis OIA

A

O: flexor retinaculum, scaphoid, trapezium
I: lateral side of proximal phalanx of thumb
A: abducts thumb

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14
Q

intermediate muscles

A

adductor pollicis and lumbricales

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15
Q

adductor pollicis OIA

A

O: (oblique head) capitate, transverse head, bases of 2nd and 3rd metacarpal bones (transverse head) 3rd metacarpal
I: medial side of proximal phalanx of thumb
A: adducts thumb

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16
Q

lumbricales (4) OIA

A

O: tendons of flexor digitorum profundus
I: dorsal tendons of fingers 2-5
A: flexes 2-5 MP joins and extends 2-5 PIP and DIP joints

17
Q

hypothenar muscles

A

abductor digiti minimi, flexor digiti minimi brevis, opponens digiti minimi

18
Q

abductor digiti minimi OIA (hand)

A

O: pisiform and tendon of flexor carpi ulnaris
I: proximal phalanx of digit 5
A: abducts digit 5

19
Q

flexor digiti minimi brevis OIA

A

O: hammate bone, flexor retinaculum
I: proximal phalanx of digit 5
A: flexes digit 5

20
Q

opponens digiti minimi OIA

A

O: hamate bone, flexor retinaculum
I: 5th metacarpal bone
A: opposition of digit 5

21
Q

2 nerves that pass through wrist

A

ulnar nerve and median nerve

22
Q

forms the carpal tunnel

A

flexor retinaculum

23
Q

dorsal muscles of the foot

A

extensor digitorum brevis

24
Q

extensor digitorum brevis OIA

A

O: calcaneus and inferior extensor retinaculum
I: middle phalanges of toes 2-4
A: extends MP and PIP joints of toes 2-4

25
Q

plantar superficial muscles

A

abductor hallucis, flexor digitorum brevis, and abductor digiti minimi

26
Q

abductor hallucis OIA

A

O: calcaneus
I: medial side of proximal phalanx of great toe
A: abducts great toe

27
Q

flexor digitorum brevis OIA

A

O: calcaneus
I:middle phalanges of toes 2-5
A: flexes MP and PIP joints of toes 2-5

28
Q

abductor digiti minimi OIA (foot)

A

O: calcaneus (inferior surface tuberosity)
I: lateral side of proximal phalanx of toe 5
A: abducts toe 5

29
Q

where are there muscles in the body that share the same name? what is the name?

A

hand and foot, abductor digiti minimi

Human Dissection (12 decks)

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