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A&P > MUSCLES > Flashcards

MUSCLES Flashcards

1
Q

What is the origin and insertion of the Epicranius/Frontal Belly?

A

Galea aponuerotica, Skin of Eyebrows

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2
Q

What does the Epicranius do?

A

Raises Eyebrows

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3
Q

What is the origin and insertion of ORBICULARIS OCULI?

A

Frontal Bone/Maxilla, Skin around eyelids

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4
Q

What does the ORBICULARIS OCULI do?

A

Closes eyes (squint, blink, wink)

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5
Q

What is the origin and insertion of the ORBICULARIS ORIS?

A

Maxilla/Mandible, muscle and skin around mouth

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6
Q

What does the ORBICULARIS ORIS do?

A

“Kissing” muscle

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7
Q

What is the origin and insertion of the ZYGOMATICUS?

A

Zygomatic bone, skin and muscle at corner of lips

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8
Q

What does the zygomaticus muscle do?

A

Raises corner of mouth (smiling) - ZMYLE LIKE A ZYCHO

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9
Q

What is the origin and interaction of PLATYSMA?

A

Fascia over chest, mandible/skin at mouth

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10
Q

What does PLATSYMA muscle do?

A

tenses skin of neck (like while shaving)

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11
Q

What is the origin and insertion of the TEMPORALIS?

A

Temporal bone, mandible

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12
Q

What is the action of the temporalis?

A

Closes jaw

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13
Q

What is the origin and insertion of the MASSETER?

A

Temporal bone, Mandible

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14
Q

What is the action of the MASSETER?

A

Prime mover of jaw closure

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15
Q

What is the origin and insertion of the STERNOCLEIDOMASTOID?

A

Sternum/Clavivle, temporal bone

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16
Q

What is the action of the STERNOCLEIDOMASTOID muscle?

A

Bilateral - neck flexion (bowing head)

Unilateral - rotate head (same side as contraction)

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17
Q

What is the origin and insertion of RECTUS ABDOMINIS?

A

Pubis, lower costal cartilages/xiphoid process

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18
Q

What is the action of the RECTUS ABDOMINIS?

A

Bilateral contraction, flexes spine (situps)

Unilateral - rotates spine to same side of muscle being contracted

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19
Q

What is the origin and insertion of the EXTERNAL ABDOMINAL OBLIQUE?

A

Lower ribs, Illium/pubis/Linea alba

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20
Q

What is the action of the OBLIQUES?

A

Compress abdominal contents, rotates and flexes spine

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21
Q

What is the origin and insertion of the INTERNAL ABDOMINAL OBLIQUE?

A

Lumbodorsal fascia/illium, lower ribs/linea alba/pubis

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22
Q

What is the origin and insertion of TRANSVERSUS ABDOMINIS?

A

Lower costal cartilage/lumbodorsal fascia/ illium, linea alba/pubis

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23
Q

What is the origin and insertion of the TRAPEZIUS?

A

Occipital bone/cervical and thoracic vertebrae, clavicle/scapula

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24
Q

What does the TRAPEZIUS do?

A

Raises scapula (shrugging shoulders, extending head)

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25
Q

What is the origin and insertion of LATISSIMUS DORSI?

A

Lower vertebrae/illium, humerus

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26
Q

What is the action of the LATISSIMUS DORSI?

A

Prime mover for arm extension

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27
Q

What is the origin and insertion of the internal intercostal?

A

Ribs, Ribs

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28
Q

What do the internal intercostal do?

A

Ribs - depression

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29
Q

What are is the origin and insertion of the external intercostals?

A

Ribs, ribs

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30
Q

What do the external intercostals do?

A

Ribs - elevation

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31
Q

What is the origin and insertion of the PECTORALIS MINOR?

A

Ribs 3-5, scapula

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32
Q

What are the actions of the PECTORALIS MINOR?

A

Protraction and downward rotation of scapula

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33
Q

What is the origin and insertion of SERRATUS ANTERIOR?

A

Ribs 1-9, scapula

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34
Q

What are the actions of the SERRATUS ANTERIOR?

A

Rotates scapula upward

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35
Q

What is the origin and insertion of LEVATOR SCAPULAE?

A

Cervical vertebrae, scapula

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36
Q

What are the actions of LEVATOR SCAPULAE?

A

Elevation and addiction of scapula

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37
Q

What are the origin and insertion of RHOMBOIDEUS MINOR AND MAJOR?

A

Cervical and thoracic vertebrae, scapula

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38
Q

What are the actions of RHOMBOIDEUS MUSCLES?

A

Retract scapula, rotate scapula downward

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39
Q

What are the origin and insertion of PECTORALIS MAJOR?

A

Cervical/Sternum, Humerus

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40
Q

What are the actions of the PECTORALIS MAJOR?

A

Arm flexion, rotate arm medially

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41
Q

What are the origin and insertion of TERES MAJOR?

A

Scapula, Humerus

42
Q

What are the actions of TERES MAJOR?

A

Arm extension, Arm Adduction

43
Q

What are the origin and insertion of INFRASPINATUS?

A

Scapula, Humerus

44
Q

What are the actions of INFRASPINATUS?

A

Lateral rotation of arm

45
Q

What are the origin and insertion of TRICEPS BRACHII?

A

Scapula (long head)/Humerus (medial and lateral heads), Ulna

46
Q

What are the actions of TRICEP BRACHII?

A

Elbow extension

47
Q

What are the origin and insertion of BICEP BRACHII?

A

Scapula, Radius

48
Q

What are the actions of BICEPS BRACHII?

A

Elbow flexion, forearm supination

49
Q

What are the origin and insertion of BRACHIALIS?

A

Humerus, Ulna

50
Q

What are the actions of BRACHIALIS?

A

Prime mover of forearm flexion at elbow

51
Q

What are the origin and insertion of BRACHIORADIALIS?

A

Humerus, Radius

52
Q

What are the actions of BRACHIORADIALUS?

A

Forearm flexion at elbow

53
Q

What are the origin and insertion of FLEXOR CARPI RADIALIS?

A

Humerus, Metacarpals 2-3

54
Q

What are the actions of FLEXOR CARPI RADIALIS?

A

Hand flexion and ABduction at wrist

55
Q

What are the origin and insertion of PALMARIS LONGUS?

A

Humerus, Palmar aponeurosis

56
Q

What are the action of PALMARIS LONGUS?

A

Weak wrist flexor, tenses skin of palm

57
Q

What are the origin and insertion of FLEXOR CARPI ULNARIS?

A

Humerus/Ulna, Pisiform/Hamate/Metacarpal 5

58
Q

What are the actions of FLEXOR CARPI ULNARIS?

A

Hand flexion and ADduction

59
Q

What are the origin and insertion of FLEXOR DIGITORUM SUPERFICIALIS?

A

Humerus/Ulna/Radius, Middle phalanges of fingers 2-5

60
Q

What are the actions of FLEXOR DIGITORUM SUPERFICIALIS?

A

Flexing wrist, flexing middle phalanges

61
Q

WhatWhat are the origin and insertion of EXTENSOR CARPI RADIALIS?

A

Humerus, Metacarpal 2-3

62
Q

What are the actions of EXTENSOR CARPI RADIALIS?

A

Extends and abducts the wrist

63
Q

What are the origin and insertion of EXTENSOR CARPI ULNARIS?

A

Humerus/Ulna, Metacarpal 5

64
Q

What are the actions of EXTENSOR CARPI ULNARIS?

A

Hand extension and ADduction at wrist

65
Q

What are the origin and insertion of the illiacus?

A

Illium/Sacrum, Femur

66
Q

What are the actions of illiacus?

A

Thigh flexion at hip joint

67
Q

What are the origin and insertion of the psoas?

A

Lower vertebrae, femur

68
Q

What are the action of the psoas?

A

Thigh flexion

69
Q

What are the origin and insertion of TENSOR FASCIAE LATAE?

A

Illium, illiotibial tract

70
Q

What are the actions of TENSOR FASCIAE LATAE?

A

Thigh ABduction an medial rotation of thigh

71
Q

What are the origin and insertion of SARTORIUS?

A

Illium, Tibia

72
Q

What are the actions of SARTORIUS?

A

Thigh flexion and ABduction at hip joint

73
Q

What are the origin and insertion of RECTUS FEMORIS?

A

Illium, patella

74
Q

What are the actions of RECTUS FEMORIS?

A

Extends knee and flexes thigh

75
Q

What are the origin and insertion of VASTUS LATERALIS?

A

Femur, Patella

76
Q

What are the actions of VASTUS LATERALIS?

A

Thigh flexion

77
Q

What are the origin and insertion of VASTUS MEDIALIS?

A

Leg extension at knee joint

78
Q

What are the origin and insertion of PECTINEUS?

A

Pubic bone, femur

79
Q

What are the actions of PECTINEUS?

A

Thigh flexion

80
Q

What are the origin and insertion of GRACILIS?

A

Pubic bone, femur

81
Q

What are the actions of GRACILIS?

A

Thigh ADuction

82
Q

What are the actions of ADDUCTOR MAGNUS?

A

Thigh ADduction at Hip

82
Q

What are the origin and insertion of ADDUCTOR MAGNUS?

A

Pubis/Ischium, Femur

83
Q

What are the actions of ADDUCTOR LONGUS?

A

Thigh Adduction

84
Q

What are the origin and insertion of ADDUCTOR LONGUS?

A

Pubis, Femur

85
Q

What are the actions of GLUTEUS MAXIMUS?

A

Thigh extension (rising from sit)

86
Q

What are the origin and insertion of GLUTEUS MAXIMUS?

A

Sacrum/Coccyx/ilium, femur

87
Q

What are the actions of BICEPS FEMORIS?

A

Extend thigh (at hip), flex leg (at knee)

88
Q

What are the origin and insertion of BICEPS FEMORIS?

A

Ischium/Femur, Fibula/tibula

89
Q

What are the actions of SEMITENDINOSUS?

A

Extend thigh

90
Q

What are the origin and insertion of SEMITENDINOSUS?

A

Ischium/Tibia

91
Q

What are the actions of SEMIMEMBRANOSUS?

A

Extend thigh

92
Q

What are the origin and insertion of SEMIMEMBRANOSUS?

A

Ischium, Femur/Tibia

93
Q

What are the actions of TIBIALIS ANTERIOR?

A

Prime Dorsiflexion of foot

94
Q

What are the origin and insertion of TIBIALIS ANTERIOR?

A

Tibia, Cuneiform/Metatarsal 1

95
Q

What are the actions of FIBULARIS?

A

Dorsiflexion of foot

96
Q

What are the origin and insertion of FIBULARIS?

A

Fibula, Metatarsal 5

97
Q

What are the actions of GASTROCNEMIUS?

A

Plantar flexion of foot (tip-toeing)

98
Q

What are the origin and insertion of GASTROCGNEMIUS?

A

Femur, Calcaneus

99
Q

What are the actions of SOLEUS?

A

Plantar flexion of foot (tip-toe)

100
Q

What are the origin and insertion of SOLEUS?

A

Tibia/Fibula, Calcaneus

A&P (8 decks)

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