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Anatomy and Physiology 1 > muscles > Flashcards

muscles Flashcards

1
Q

origin of external oblique

A

last 8 ribs

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2
Q

insertion of external oblique

A

linea alba, pubis, iliac crest

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3
Q

action of external oblique

A

compresses abdomen, flex, rotate vertebral column

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4
Q

origin of internal oblique

A

inguinal ligament, iliac crest, lumbodorsal fascia

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5
Q

insertion of internal oblique

A

last 3 ribs, linea alba, pubic crest

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6
Q

action of internal oblique

A

compress abdomen, flex, rotate vertebral column to same side

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7
Q

transversus abdominis origin

A

last 6 ribs, iliac crest, lumbodorsal fascia,inguinal ligament

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8
Q

transversus abdominis insertion

A

linea alba, pubic crest

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9
Q

transversus abdominis action

A

compresses abdomen

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10
Q

rectus abdominis origin

A

pubic symphysis, pubic crest

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11
Q

rectus abdominis insertion

A

xiphoid process, 5-7 cartilages

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12
Q

rectus abdominis action

A

flex vertebral column, compress abdomen

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13
Q

pectoralis major origin

A

true costal cartilages, sternum, medial clavicle

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14
Q

pectoralis major insertion

A

intertubercular groove of humerus

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15
Q

pectoralis major action

A

adducts, flexes, and medially rotates arm

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16
Q

pectoralis minor origin

A

ribs 3-5

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17
Q

pectoralis minor insertion

A

coracoid process

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18
Q

pectoralis minor action

A

pulls scapula forward and downward, abducts and medially rotates scapula, depressing shoulder

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19
Q

latissimus dorsi origin

A

iliac crest, lumbodorsal fascia, last 6 thoracic spines, lumbar and sacral vertebrae

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20
Q

latissimus dorsi insertion

A

bicipital groove of humerus

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21
Q

latissimus dorsi action

A

adduct extend and medially rotate arm; depress shoulder

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22
Q

trapezius origin

A

occipital bone, 7th cervical vertebra, all thoracic vertebrae

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23
Q

trapezius insertion

A

acromion, scapular spine, clavicle

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24
Q

trapezius actions

A

adducts, laterally rotates scapula;

upper raises shoulder, extends and laterally flexes head

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25
Q

levator scapulae ventralis (anterior) origin

A

transverse processes of c1-c4

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26
Q

levator scapulae ventralis (anterior) insertion

A

vertebral border of scapula

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27
Q

levator scapulae ventralis (anterior) action

A

elevates, medially rotates scapula; depresses shoulder

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28
Q

supraspinatus origin

A

supraspinous scapular fossa

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29
Q

supraspinatus insertion

A

greater tubercle of humerus

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30
Q

supraspinatus action

A

abducts,laterally rotates arm

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31
Q

infraspinatus origin

A

infraspinous scapular fossa

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32
Q

infraspinatus insertion

A

greater tubercle of humerus

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33
Q

infraspinatus action

A

laterally rotates arm

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34
Q

deltoid origin

A

scapular spine, acromion process, clavicle

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35
Q

deltoid insertion

A

deltoid tuberosity of humerus

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36
Q

deltoid action

A

anterior abducts, flexes, medially rotates arm

posterior abducts, extends, laterally rotates arm

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37
Q

teres major origin

A

axillary scapular border

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38
Q

teres major insertion

A

intertubercular groove of humerus

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39
Q

teres major action

A

adducts, extends, medially rotates arm

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40
Q

serratus ventralis (anterior) origin

A

ribs 1-9

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41
Q

serratus anterior insertion

A

vertebral border of scapula

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42
Q

serratus anterior action

A

abducts, laterally rotates scapula; raises shoulder

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43
Q

external intercostals origin

A

lower border of rib

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44
Q

external intercostals insertion

A

upper border of rib below

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45
Q

external intercostals action

A

elevates ribs, enlarges thorax

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46
Q

internal intercostals origin

A

upper border of rib below

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47
Q

internal intercostals insertion

A

lower border of rib above

48
Q

internal intercostals action

A

compress thoracic cavity

49
Q

triceps brachii origin

A

long head: infraglenoid tuberosity

lateral and medial heads: posterior humerus

50
Q

triceps brachii insertion

A

olecranon process

51
Q

triceps brachii action

A

extend forearm

52
Q

biceps brachii origin

A

coracoid process

supraglenoid tuberosity of scapula

53
Q

biceps brachii insertion

A

radial tuberosity

54
Q

biceps brachii action

A

flexes, supinates forearm

55
Q

subscapularis origin

A

subscapular fossa

56
Q

subscapularis insertion

A

lesser tubercle of humerus

57
Q

subscapularis action

A

medially rotates arm

holds humerus in glenoid cavity

58
Q

brachialis origin

A

distal anterior humerus

59
Q

brachialis insertion

A

ulnar coronoid process

60
Q

brachialis action

A

flexes forearm

61
Q

brachioradialis origin

A

humeral supracondylar ridge

62
Q

brachioradialis insertion

A

lateral styloid process of radius

63
Q

brachioradialis action

A

flexes and supinates forearm

64
Q

tensor fascia latae origin

A

iliac crest; anterior superior iliac spine

65
Q

tensor fascia latae insertion

A

iliotibial band; lateral tibial condyle

66
Q

tensor fascia latae action

A

tenses the fascia lata

67
Q

biceps femoris origin

A

ischial tuberosity, linea aspera of humerus

68
Q

biceps femoris insertion

A

fibular head, lateral tibial condyle

69
Q

biceps femoris action

A

flexes lower leg; extends thigh

70
Q

gluteus maximus origin

A

iliac crest, lateral surface of sacrum, coccyx

71
Q

gluteus maximus insertion

A

gluteal tuberosity, iliotibial band of fascial lata

72
Q

gluteus maximus action

A

extends, laterally rotates thigh

73
Q

gluteus medius origin

A

iliac crest

74
Q

gluteus medius insertion

A

greater trochanter

75
Q

gluteus medius action

A

abducts, medially rotates thigh

76
Q

sartorius origin

A

ASIS

77
Q

sartorius insertion

A

medial, proximal tibia

78
Q

sartorius action

A

flexes, laterally rotates thigh

79
Q

gracilis origin

A

pubic symphysis

80
Q

gracilis insertion

A

medial, proximal tibia

81
Q

gracilis action

A

adducts thigh; flexes, medially rotates leg

82
Q

vastus intermedius origin

A

anterior shaft of femur

83
Q

vastus intermedius insertion

A

tibial tuberosity

84
Q

vastus intermedius action

A

extends tibia

85
Q

vastus medialis origin

A

linea aspera, greater trochanter

86
Q

vastus medialis insertion

A

tibial tuberosity

87
Q

vastus medialis action

A

extend tibia

88
Q

rectus femoris origin

A

anterior inferior iliac spine

89
Q

rectus femoris insertion

A

tibial tuberosity, patella

90
Q

rectus femoris action

A

extends leg; flexes thigh

91
Q

adductor longus origin

A

pubic crest and symphysis

92
Q

adductor longus insertion

A

linea aspera

93
Q

adductor longus action

A

adduct, flex and medially rotate thigh

94
Q

semitendinosus origin

A

ischial tuberosity

95
Q

semitendinosus insertion

A

medial proximal tibia, medial tibial condyle

96
Q

semitendinosus action

A

flex, medially rotate leg; extend thigh

97
Q

tibialis anterior origino

A

lateral condyle of tibia

98
Q

tibialis anterior insertion

A

cuneiform tarsal, metatarsal

99
Q

tibialis anterior action

A

flexes, inverts foot

100
Q

gastrocnemius origin

A

medial, lateral condyles of femur

101
Q

gastrocnemius insertion

A

calcaneous (via Achilles tendon)

102
Q

gastrocnemius action

A

flex tibia; plantar flex foot

103
Q

soleus origin

A

tibia, fibula

104
Q

soleus insertion

A

calcaneous (via Achilles tendon)

105
Q

soleus action

A

plantar flexion

106
Q

sacrospinalis origin

A

C4-C7, lumbar, and thoracic vertebrae, iliac crest, sacrum, ribs

107
Q

sacrospinalis insertion

A

cervical, thoracic vertebrae, posterior parts of ribs, mastoid process

108
Q

sacrospinalis action

A

vertebral column extension

109
Q

sternocleidomastoid origin

A

manubrium, clavicle

110
Q

sternocleidomastoid insertion

A

mastoid process

111
Q

sternocleidomastoid action

A

flex head, neck laterally; rotates head to opposite side; both sides together flex neck, bring head forward

112
Q

Masseter origin

A

maxillary zygomatic process

113
Q

masseter insertion

A

lateral mandible

114
Q

masseter action

A

elevate mandible, draw it forward (protract)

115
Q

temporalis origin

A

mandibulare fossa of temporal bone

116
Q

temporalis insertion

A

mandibular coronoid process

117
Q

temporalis action

A

elevates mandible

Anatomy and Physiology 1 (2 decks)

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