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Anatomy And Phisiology > Muscles- Lab 22,23,24,25 > Flashcards

Muscles- Lab 22,23,24,25 Flashcards

1
Q

Epicranius

A

Raises eyebrows; retracts scalp

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2
Q

Nasalis

A

Widens nostrils

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3
Q

Orbicularis oculi

A

Closes eyelids as in blinking

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4
Q

Orbicularis oris

A

Closes lips; protrudes lips as for kissing

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5
Q

Risorius

A

Draws corner of mouth laterally

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6
Q

Zygomaticus major

A

Raises corners of mouth as when smiling and laughing

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7
Q

Zygomaticus minor

A

Raises corners of mouth as in smiling and laughing

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8
Q

Buccinator

A

Compresses cheeks inward as when blowing air

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9
Q

Platysma

A

Draws angle of mouth downward as when pouting or expressing horror

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10
Q

Masseter

A

Elevates mandible

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11
Q

Temporalis

A

Elevates mandible

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12
Q

Lateral pterygoid

A

Depresses and protracts mandible and moves it from side to side as when grinding food

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13
Q

Medial pterygoid

A

Elevates mandible and moves it from side to side as when grinding food

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14
Q

Sternocleidomastoid

A

Flexion of head and neck; rotation of head to left or right

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15
Q

Trapezius

A

Extends head (as a synergist); rotates scapula; various fibers raise scapula, pulls scapula medially, or pull scapula and shoulder down

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16
Q

Scalenes

A

Elevates ribs one and two; Flexion and rotation of the neck

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17
Q

Splenius capitis

A

Extends head; rotates head

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18
Q

Semispinalis capitis

A

Extends head; rotates head

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19
Q

Digastric

A

Opens mouth; depresses mandible; elevates hyoid bone

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20
Q

Stylohyoid

A

Retracts and elevates hyoid bone

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21
Q

Mylohyoid

A

Elevates hyoid bone during swallowing

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22
Q

Sternohyoid

A

Depresses hyoid bone

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23
Q

Omohyoid

A

Depresses hyoid bone

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24
Q

Sternothyroid

A

Depresses larynx

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25
Q

Thyrohyoid

A

Depresses hyoid bone; elevates larynx

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26
Q

Pectoralis minor

A

Pulls scapula forward and downward; raises ribs

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27
Q

Serratus anterior

A

Pulls scapula anteriorly (protracts scapula)

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28
Q

Rhomboid major

A

Retracts and elevates scapula

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29
Q

Rhomboid minor

A

Retracts and elevates scapula

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30
Q

Levator scapulae

A

Elevates scapula

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31
Q

Pectoralis major

A

Flexes, adducts, and rotates arm medially

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32
Q

Latissimus dorsi

A

Flexes, adducts, and rotates arm medially

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33
Q

Deltoid

A

Abducts, extends, and flexes arm

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34
Q

Teres major

A

Extends, adducts, and rotates the arm medially

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35
Q

Coracobrachialis

A

Flexes and adducts the arm

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36
Q

Supraspinatus

A

Abducts the arm

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37
Q

Infraspinatus

A

Rotates arm laterally

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38
Q

Teres minor

A

Rotates arm laterally

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39
Q

Subscapularis

A

Rotates arm medially

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40
Q

Biceps brachii

A

Flexes elbow and supinates forearm and hand

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41
Q

Brachialis

A

Flexes elbow

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42
Q

Triceps brachii

A

Extends elbow

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43
Q

Brachioradialis

A

Flexes elbow

44
Q

Anconeus

A

Extends elbow

45
Q

Supinator

A

Supinates forearm and hand

46
Q

Pronator teres

A

Pronates forearm and hand

47
Q

Pronator quadratus

A

Pronates forearm and hand

48
Q

Palmaris longus (sometimes absent)

A

Flexes wrist

49
Q

Flexor Capri radialis

A

Flexes wrist and abducts hand

50
Q

Flexor carpi ulnaris

A

Flexes wrist and adducts hand

51
Q

Flexor digitorum superficialis

A

Flexes fingers and wrist

52
Q

Flexor digitorum profundus

A

Flexes fingers 2-5

53
Q

Flexor pollicis longus

A

Flexes thumb

54
Q

Extensor digitorum

A

Extends fingers

55
Q

Extensor carpi radialis brevis

A

Extends wrist and abducts hand

56
Q

Extensor carpi ulnaris

A

Extends wrist and adducts hand

57
Q

Extensor digiti minimi

A

Extends finger 5 (pinky)

58
Q

Extensor pollicis longus

A

Extends thumb

59
Q

Abductor pollicis longus

A

Abducts thumb

60
Q

Extensor indicis

A

Extends finger 2 (pointer)

61
Q

Extensor pollicis brevis

A

Extends thumb

62
Q

Quadratus lumborum

A

Extends vertebral column; lateral flexion

63
Q

Erector spinae (3 columns of muscles)

  • iliocostalis
  • longissimus
  • spinalis
A

Extends vertebral column; lateral flexion

64
Q

Internal oblique

A

Tenses abdominal wall; compresses abdominal contents; aids in trunk rotation

65
Q

External oblique

A

Tenses abdominal wall; compresses abdominal contents; aids in trunk rotation

66
Q

Rectus abdominis

A

Flexes vertebral column; compresses abdominal contents

67
Q

Transversus abdominis

A

Compresses abdominal contents

68
Q

coccygeus

A

supports pelvic viscera

69
Q

Levator ani

A

supports pelvic viscera and provides sphincter like action in anal canal and vagina

70
Q

bulbospongiosus

A

Males: assists emptying of urethra and assists in erection of penis
Females: constricts vagina and assists in erection of clitoris

71
Q

superficial transverse perineal muscle

A

supports pelvic viscera

72
Q

psoas major

A

flexes thigh at hip; flexes trunk at hip (when thigh is fixed)

73
Q

Ischiocavernosus

A

Males: erects penis
Females: erects clitoris

74
Q

Gluteus Maximus

A

extends thigh at hip

75
Q

Iliacus

A

flexes thigh at hip; flexes trunk at hip (when thigh is fixed)

76
Q

gluteus minimus

A

abducts and medially rotates thigh

77
Q

gluteus medius

A

abducts and medially rotates thigh

78
Q

piriformis

A

abducts and laterally rotates thigh

79
Q

tensor fasciae latae

A

abducts and medially rotates thigh

80
Q

adductor longus

A

adducts and flexes thigh

81
Q

pectineus

A

adducts and flexes thigh

82
Q

adductor brevis

A

adducts thigh

83
Q

adductor magnus

A

adducts thigh; posterior portion extends thigh, and anterior portion flexes thigh

84
Q

sartorius

A

flexes, abducts, and laterally rotates thigh at hip; flexes leg at knee

85
Q

gracilis

A

adducts thigh and flexes leg at knee

86
Q

vastus lateralis (quadriceps femoris group)

A

extends leg at knee

87
Q

Rectus femoris (quadriceps femoris group)

A

extends leg at knee; flexes thigh at hip

88
Q

vastus intermedius

A

extends leg at knee

89
Q

vastus medialis (quadriceps femoris group)

A

extends leg at knee

90
Q

semitendinosus (hamstring group)

A

flexes leg at knee; rotates leg medially; extends thigh

91
Q

biceps femoris (hamstring group)

A

flexes leg at knee; rotates leg laterally; extends thigh

92
Q

Tibialis anterior

A

Dorsiflexion and inversion of the foot

93
Q

semimembranosus (hamstring group)

A

flexes leg at knee; rotates leg medially; extends thigh

94
Q

Extensor hallucis longus

A

Extends great toe and dorsiflexion

95
Q

Extensor digitorum longus

A

Extends toes 2-5 and dorsiflexion

96
Q

Gastrocnemius

A

Plantar flexion of foot and flexes knee

97
Q

Fibularis tertius

A

Dorsiflexion and eversion of foot

98
Q

Plantaris

A

Plantar flexion of foot and flexes knee

99
Q

Soleus

A

Plantar flexion of foot

100
Q

Flexor digitorum longus

A

Flexes toes 2-5 and plantar flexion and inversion of the foot

101
Q

Tibialis posterior

A

Plantar flexion and inversion of the foot

102
Q

Fibularis longus

A

Plantar flexion and eversion; also supports arch

103
Q

Flexor hallucis longus

A

Flexes great toe and plantar flexes foot

104
Q

Extensor carpi radialis longus

A

Extends wrist and abducts hand

105
Q

Fibularis brevis

A

Plantar flexion and eversion of foot

Anatomy And Phisiology (18 decks)

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