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Human Anatomy > Muscle Facts > Flashcards

Muscle Facts Flashcards

1
Q

Occipitofrontalis

A

Origin:
Insertion:
Action: elevate eyebrows, wrinkle skin of forehead

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2
Q

Orbicularis Oculi

A

Origin:
Insertion:
Action: close eyelids

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3
Q

Orbicularis Oris

A

Origin:
Insertion:
Action: compress & purse lips

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4
Q

Zygomaticus Minor

A

Origin:
Insertion:
Action: pull corner of mouth superiorly & laterally

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5
Q

Zygomaticus Major

A

Origin:
Insertion:
Action: pulls corner of mouth superiorly & laterally

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6
Q

Buccinator

A

Origin:
Insertion:
Action: compress cheek against molars, primary muscle of the cheek

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7
Q

Risorius

A

Origin:
Insertion:
Action: depress angle of mouth (frown)

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8
Q

Temporalis

A

Origin: temporal fossa
Insertion: coronoid process & ramus of mandible
Action: elevate & retract mandible

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9
Q

Masseter

A

Origin: zygomatic arch
Insertion: mandibular angle
Action: elevate mandible

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10
Q

Digastric

A

Origin: mandible
Insertion: hyoid
Action: elevate & steadies hyoid, deglutition

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11
Q

Mylohyoid

A

Origin: mandible
Insertion: hyoid
Action: forms the floor of oral cavity, elevate hyoid, deglutition

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12
Q

Omohyoid

A

Origin: superior border of scapula
Insertion: hyoid
Action: depress hyoid

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13
Q

Sternohyoid

A

Origin: sternum
Insertion: hyoid
Action: depress hyoid

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14
Q

Sternothyroid

A

Origin: sternum
Insertion: thyroid cartilage
Action: depress hyoid

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15
Q

Platysma

A

Origin:
Insertion:
Action: tense skin of neck, depress mandible

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16
Q

Anterior Scalene

A

Origin: anterior tubercle cervical vertebrae
Insertion: rib 1
Action: flex neck laterally, elevate rib 1

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17
Q

Middle Scalene

A

Origin: posterior tubercle cervical vertebrae
Insertion: rib 1
Action: flex neck laterally

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18
Q

Posterior Scalene

A

Origin: posterior tubercle cervical vertebrae
Insertion: rib 2
Action: flex neck laterally, elevate rib 2

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19
Q

Sternocleidomastoid

A

Origin: manubrium, sternal end of clavicle
Insertion: mastoid process
Action: flex neck laterally, rotate neck to opposite side

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20
Q

External Intercostal

A

Origin: LOWER margin of UPPER rib
Insertion: UPPER margin of LOWER rib
Action: raise ribs during inspiration

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21
Q

Internal Intercostal

A

Origin: UPPER margin of LOWER rib
Insertion: LOWER margin of UPPER rib
Action: lower ribs during expiration

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22
Q

Rectus Abdominus

A

Origin: pubis
Insertion: costal cartilage of ribs 5-7, xiphoid process
Action: flex trunk, compress abdomen

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23
Q

External Oblique

A

Origin: ribs
Insertion: iliac crest, linea alba
Action: flex trunk to same side, rotate trunk to opposite side

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24
Q

Internal Oblique

A

Origin: iliac crest
Insertion: ribs
Action: flex trunk to same side, rotate trunk to opposite side

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25
Q

Transversus Abdominis

A

Origin:
Insertion:
Action: rotate trunk to same side

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26
Q

Quadratus Lumborum (QL)

A

Origin: iliac crest
Insertion: transverse process L1-L4, 12th rib
Action: extend trunk, bend trunk to same side

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27
Q

Diaphragm

A

Origin: ribs 7-12, xiphoid process, body of vertebrae L1-L3
Insertion: central tendon of diaphragm
Action: principle muscle of respiration

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28
Q

Splenius Capitis

A

Origin:
Insertion:
Action: lateral flexion of neck, rotate head to same side

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29
Q

Semispinalis Capitis

A

Origin:
Insertion:
Action: lateral flexion of neck, rotate head to same side

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30
Q

Spinalis

A

Origin:
Insertion:
Action: extend vertebral column

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31
Q

Longissimus

A

Origin:
Insertion:
Action: extend vertebral column

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32
Q

Iliocostalis

A

Origin:
Insertion:
Action: extend vertebral column

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33
Q

Deltoid

A

Origin: clavicle; acromion, spine of scapula
Insertion: deltoid tuberosity
Action: ABduct shoulder

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34
Q

Pectoralis Major

A

Origin: clavicle, sternum, ribs
Insertion: greater tubercule
Action: flex, adduct, internally rotate shoulder

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35
Q

Coracobrachialis

A

Origin: coracoid process
Insertion: humerus
Action: flex, adduct, internally rotate shoulder

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36
Q

Pecotralis Minor

A

Origin: ribs 3-5
Insertion: coracoid process
Action: protract & depress scapula

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37
Q

Serratus Anterior

A

Origin: ribs 1-9
Insertion: anterior surface of medial border of scapula
Action: protract scapula, lowers a raised arm

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38
Q

Trapezius

A

Origin: occipital bone, spinous process C1-T12
Insertion: clavicle, acromion, spine of scapula
Action: elevate, retract, depress scapula

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39
Q

Levator Scapulae

A

Origin:
Insertion:
Action: elevate scapula

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40
Q

Rhomboid Minor

A

Origin: spinous process C6-C7
Insertion: medial border of scapula
Action: steady scapula, draw scapula medically upward

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41
Q

Rhomboid Major

A

Origin: spinous process T1-T4
Insertion: medial border of scapula
Action: steady scapula, draw scapula medially upward

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42
Q

Latissimus Dorsi

A

Origin: spinous process T7-T12, ribs 9-12, iliac crest, inferior angle of scapula
Insertion: lesser tubercle
Action: extend, adduct, internally rotate shoulder

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43
Q

Teres Major

A

Origin: inferior angle of scapula
Insertion: lesser tubercule
Action: extend, adduct, internally rotate shoulder

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44
Q

Supraspinatus

A

Origin: supraspinous fossa
Insertion: greater tubercule
Action: ABduct shoulder

45
Q

Infraspinatus

A

Origin: infraspinous fossa
Insertion: greater tubercule
Action: externally rotate shoulder

46
Q

Teres Minor

A

Origin: lateral border of scapula
Insertion: greater tubercule
Action: externally rotate shoulder

47
Q

Subscapularis

A

Origin: subscapular fossa
Insertion: lesser tubercule
Action: internally rotate shoulder

48
Q

Biceps Brachii

A

Origin: supraglenoid tubercule, coracoid process
Insertion: radial tuberosity
Action: flex elbow, supinate forearm

49
Q

Brachioradialis

A

Origin: humerus
Insertion: styloid process of radius
Action: flex elbow

50
Q

Brachialis

A

Origin: humerus
Insertion: ulnar tuberosity
Action: flex elbow

51
Q

Triceps Brachii

A

Origin: infraglenoid tubercule, humerus
Insertion: olecranon
Action: extend elbow

52
Q

Pronator Teres

A

Origin: medial epicondyle of humerus (common flexor tendon)
Insertion: radius
Action: pronate forearm

53
Q

Flexor Carpi Radialis

A

Origin: medial epicondyle of humerus (common flexor tendon)
Insertion: metacarpals 2-3
Action: flex wrist, radial deviation

54
Q

Flexor Carpi Ulnaris

A

Origin: medial epicondyle of humerus (common flexor tendon)
Insertion: pisiform, hamate, metacarpal 5
Action: flex wrist, ulnar deviation

55
Q

Palmaris Longus

A

Origin: medial epicondyle of humerus (common flexor tendon)
Insertion: flexor retinaculum, palmar aponeurosis
Action: flex wrist

56
Q

Flexor Digitorum Superficialis

A

Origin: medial epicondyle of humerus (common flexor tendon)
Insertion: sides of middle phalanges 2-5
Action: flex wrist & digits

57
Q

Flexor Digitorum Profundus

A

Origin:
Insertion: palmar surface distal phalanges 2-5
Action: flex wrists & digits

58
Q

Extensor Carpi Radialis Longus

A

Origin: lateral epicondyle of humerus (common extensor tendon)
Insertion: metacarpals 2-3
Action: extend wrist

59
Q

Extensor Carpi Radialis Brevis

A

Origin: lateral epicondyle of humerus (common extensor tendon)
Insertion: metacarpals 2-3
Action: extend wrist

60
Q

Extensor Carpi Ulnaris

A

Origin: lateral epicondyle of humerus (common extensor tendon)
Insertion: metacarpal 5
Action: extend wrist

61
Q

Extensor Digitorum

A

Origin: lateral epicondyle of humerus (common extensor tendon)
Insertion: extensor expansions digits 2-5
Action: extend wrist & digits

62
Q

Extensor Digiti Minimi

A

Origin: lateral epicondyle of humerus (common extensor tendon)
Insertion: extensor expansion digit 5
Action: extend digit 5

63
Q

Extensor Pollicis Longus

A

Origin:
Insertion:
Action: extend thumb

64
Q

Extensor Pollicis Brevis

A

Origin:
Insertion:
Action: extend thumb

65
Q

ABductor Pollicis Longus

A

Origin:
Insertion:
Action: ABduct thumb

66
Q

ABductor Pollicis Brevis

A

Origin:
Insertion:
Action: ABduct thumb

67
Q

Palmaris Brevis

A

Origin: palmar aponeurosis
Insertion:
Action: tightens palmar aponeurosis

68
Q

Psoas Major

A

Origin: transverse process T12-L5
Insertion: lesser trochanter
Action: flex hip

69
Q

Iliacus

A

Origin: iliac fossa
Insertion: lesser trochanter
Action: flex hip

70
Q

Iliopsoas (psoas major + iliacus)

A

Origin:
Insertion: lesser trochanter
Action: flex hip

71
Q

Pectineus

A

Origin: pubis
Insertion: femur
Action: flex, adduct, rotate hip

72
Q

Gracilis

A

Origin: inferior pubic ramus
Insertion: pes anserinus
Action: flex, adduct, rotate hip; flex knee

73
Q

Tensor Fasciae Latae (TFL)

A

Origin: anterior superior iliac spine
Insertion: IT band
Action: flex, ABduct, rotate hip

74
Q

Sartorius

A

Origin: anterior superior iliac spine
Insertion: pes anserinus
Action: flex, ABduct, rotate hip; flex knee

75
Q

Adductor Magnus

A

Origin: ischial tuberosity, inferior pubic ramus
Insertion: linea aspera
Action: flex & adduct hip, pelvis stabilization

76
Q

Adductor Brevis

A

Origin: inferior pubic ramus
Insertion: linea aspera
Action: flex & adduct hip, pelvis stabilization

77
Q

Adductor Longus

A

Origin: inferior pubic ramus
Insertion: linea aspera
Action: flex & adduct hip, pelvis stabilization

78
Q

Rectus Femoris

A

Origin: anterior inferior iliac spine
Insertion: tibial tuberosity
Action: flex hip, extend knee

79
Q

Vastus Lateralis

A

Origin: femur
Insertion: tibial tuberosity
Action: extend knee

80
Q

Vastus Medialis

A

Origin: femur
Insertion: tibial tuberosity
Action: extend knee

81
Q

Vastus Intermedius

A

Origin: femur
Insertion: tibial tuberosity
Action: extend knee

82
Q

Biceps Femoris

A

Origin: ischial tuberosity, linea aspera
Insertion: head of fibula
Action: extend hip, flex knee

83
Q

Semimembranosus

A

Origin: ischial tuberosity
Insertion: medial condyle of tibia
Action: extend hip, flex knee

84
Q

Semitendinosus

A

Origin: ischial tuberosity
Insertion: pes anserinus
Action: extend hip, flex knee

85
Q

Gluteus Maximus

A

Origin: iliac crest, sacrum
Insertion: gluteal tuberosity, IT band
Action: extend & rotate hip

86
Q

Gluteus Medius

A

Origin: iliac crest
Insertion: greater trochanter
Action: ABduct & rotate hip, pelvis stabilization

87
Q

Gluteus Minimus

A

Origin: ilium
Insertion: greater trochanter
Action: ABduct & rotate hip, pelvis stabilization

88
Q

Gemellus Superior

A

Origin:
Insertion: greater trochanter
Action: extend & rotate hip

89
Q

Gemellus Inferior

A

Origin:
Insertion: greater trochanter
Action: extend & rotate hip

90
Q

Obturator Internus

A

Origin:
Insertion: greater trochanter
Action: extend & rotate hip

91
Q

Piriformis

A

Origin:
Insertion: greater trochanter
Action: extend & rotate hip

92
Q

Quadratus Femoris

A

Origin:
Insertion:
Action: rotate hip

93
Q

Tibialis Anterior

A

Origin: lateral condyle of tibia
Insertion: metatarsal 1, medial cuneiform
Action: dorsiflex & invert foot

94
Q

Fibularis Longus

A

Origin: fibula
Insertion: metatarsal 1, medial cuneiform
Action: plantar flex & evert foot

95
Q

Fibularis Brevis

A

Origin: fibula
Insertion: tuberosity of 5th metatarsal
Action: plantar flex & evert foot

96
Q

Fibularis Tertius

A

Origin: fibula
Insertion: tuberosity of 5th metatarsal
Action: plantar flex & evert foot

97
Q

Extensor Digitorum Longus

A

Origin: lateral condyle of tibia, fibula
Insertion: distal phalanges
Action: extend toes

98
Q

Gastrocnemius

A

Origin: medial & lateral epicondyles of femur
Insertion: calcaneus
Action: flex knee, plantar flex foot

99
Q

Soleus

A

Origin: fibula
Insertion: calcaneus
Action: plantar flex foot

100
Q

Plantaris

A

Origin:
Insertion:
Action: plantar flex foot

101
Q

Tibialis Posterior

A

Origin:
Insertion:
Action: plantar flex & invert foot

102
Q

Popliteus

A

Origin:
Insertion:
Action: unlock knee joint, knee stabilization

103
Q

Flexor Digitorum Longus

A

Origin: tibia
Insertion: distal phalanges
Action: flex toes

104
Q

Flexor Digitorum Brevis

A

Origin: calcaneus
Insertion: middle phalanges
Action: flex toes

105
Q

Flexor Hallucis Longus

A

Origin: fibula
Insertion: distal phalange 1
Action: flex great toe, plantar flex foot

106
Q

Extensor Hallucis Longus

A

Origin: fibula
Insertion: distal phalange 1
Action: extend great toe, dorsiflex foot

107
Q

ABductor Hallucis

A

Origin: calcaneus
Insertion: proximal phalange 1
Action: ABduct & flex great toe

108
Q

Thyrohyoid

A

Origin: thyroid cartilage
Insertion: hyoid
Action: depress hyoid

Human Anatomy (6 decks)

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