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ZOOLOGY LAB > origin and insertion of muscles > Flashcards

origin and insertion of muscles Flashcards

1
Q

8 SUPERFICIAL MUSCLES UNDER THE LOWER JAW, CHEST AND ABDOMEN

A

MYLOHYOID
ANTERIOR PECTORALIS
MIDDLE PECTORALIS
POSTERIOR PECTORALIS
DELTOID
BICEPS BRACHII
RECTUS ABDOMINIS
EXTERNAL OBLIQUE

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2
Q

origin of mylohyoid

A

lower

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3
Q

insertion of mylohyoid

A

median line

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4
Q

action of mylohyoid

A

Raises the floor of
the mouth

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5
Q

origin of anterior pectoralis

A

coracoracoid and epicoracoid

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6
Q

insertion of anterior pectoralis

A

humerus

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7
Q

origin of middle pectoralis

A

Sternum and
Xiphisternum

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8
Q

insertion of middle pectoralis

A

humerus

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9
Q

action of middle pectoralis

A

Draws the arm
towards the chest

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10
Q

origin of posterior pectoralis

A

rectus abdominis

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11
Q

insertion of posterior pectoralis

A

humerus

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12
Q

action of posterior pectoralis

A

Draws the arm
towards the chest

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13
Q

origin of deltoid

A

median line

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14
Q

insertion of deltoid

A

humerus

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15
Q

action of deltoid

A

Pulls the arm
forward

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16
Q

origin of biceps brachii

A

Episternum

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17
Q

insertion of biceps brachii

A

Radio-ulna

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18
Q

action of biceps brachii

A

Flexes the forearm

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19
Q

origin of RECTUS ABDOMINIS

A

pubis

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20
Q

insertion of RECTUS ABDOMINIS

A

sternum

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21
Q

action RECTUS ABDOMINIS

A

Supports the
abdomen and holds
the sternum

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22
Q

origin of external oblique

A

Rectus abdominis
and Dorsal fascia

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23
Q

insertion of external oblique

A

linea alba

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24
Q

action of external oblique

A

Compresses the
abdomen

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25
Q

5 SUPERFICIAL MUSCLES OF THE HEAD AND BACK

A

MASSETER
DEPRESSOR MANDIBULARIS
TEMPORALIS
LATISSIMUS DORSI
LONGISSIMUS DORSI

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26
Q

origin of masseter

A

Tympanic ring

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27
Q

insertion of masseter

A

Lower jaw
posterior to the
temporalis

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28
Q

action of masseter

A

Closes the mouth

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29
Q

origin of DEPRESSOR MANDIBULARIS

A

Tympanic ring and
Dorsal fascia

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30
Q

insertion of depressor mandibularis

A

lower jaw

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31
Q

action of DEPRESSOR
MANDIBULARIS

A

Opens the mouth

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32
Q

origin of temporalis

A

Side of the skull
between eye and
tympanic ring

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33
Q

insertion of temporalis

A

Near the posterior
of the lower jaw

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34
Q

action of temporalis

A

Closes the mouth

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35
Q

origin of LATISSIMUS DORSI

A

Dorsal fascia

36
Q

insertion of LATISSIMUS DORSI

A

Humerus

37
Q

action of LATISSIMUS DORSI

A

Swings the forearm
outward and
upward

38
Q

origin of LONGISSIMUS DORSI

A

Sacral vertebra and
illium

39
Q

insertion of LONGISSIMUS DORSI

A

Suprascapula and
dorsal fascia

40
Q

action of LONGISSIMUS DORSI

A

Raises the back

41
Q

4 MUSCLES OF THE THIGH AND SHANK ON THE DORSAL SIDE OF THE THIGH

A

TRICEPS FEMORIS
SEMIMEMBRANOSUS
BICEPS FEMORIS
SEMITENDINOSUS

42
Q

origin of triceps femoris

A

Pelvic girdle

43
Q

insertion of triceps femoris

A

tibio-fibula

44
Q

action of triceps femoris

A

Adducts the thigh
and extends the
shank

45
Q

origin of semimembranosus

A

Ischium

46
Q

insertion of SEMIMEMBRANOSUS

A

Tibio-fibula

47
Q

action of SEMIMEMBRANOSUS

A

Adducts the thigh
and flexes the
shank

48
Q

origin of BICEPS FEMORIS

A

ischium

49
Q

insertion of BICEPS FEMORIS

A

Tendon on the knee
and fascia of the
shank

50
Q

action of biceps femoris

A

Adducts the thigh
and flexes the legs

51
Q

origin of SEMITENDINOSUS

A

ischium

52
Q

insertion of SEMITENDINOSUS

A

tibio-fibula

53
Q

action of SEMITENDINOSUS

A

Adducts the femur
and flexes the legs

54
Q

5 MUSCLES ON THE VENTRAL SIDE OF THE THIGH

A

SARTORIUS
ADDUCTOR LONGUS
ADDUCTOR MAGNUS
GRACILIS MAJOR/RECTUS INTERNUS MAJOR
GRACILIS MINOR/RECTUS INTERNUS MINOR

55
Q

origin of sartorius

A

Ilium

56
Q

insertion of sartorius

A

Tibio-fibula

57
Q

action of sartorius

A

Flexes the shank
and adducts the
thigh

58
Q

origin of ADDUCTOR LONGUS

A

Ilium

59
Q

insertion of ADDUCTOR LONGUS

A

Femur

60
Q

action of ADDUCTOR LONGUS

A

Pulls the thigh
forward and
ventrad

61
Q

origin of ADDUCTOR MAGNUS

A

Ischium and Pubis

62
Q

insertion of ADDUCTOR MAGNUS

A

Femur

63
Q

action of ADDUCTOR MAGNUS

A

Adducts the thigh
and leg

64
Q

origin of GRACILIS MAJOR/RECTUS INTERNUS MAJOR

A

Ischium

65
Q

insertion of GRACILIS MAJOR/RECTUS INTERNUS MAJOR

A

Tibio-fibula

66
Q

action of GRACILIS MAJOR/RECTUS INTERNUS MAJOR

A

Flexes the shank
and adducts the
thigh

67
Q

origin of GRACILIS MINOR/RECTUS INTERNUS MINOR

A

ischium

68
Q

insertion of GRACILIS MINOR/RECTUS INTERNUS MINOR

A

tibio-fibula

69
Q

action of GRACILIS MINOR/RECTUS INTERNUS MINOR

A

Flexes the shank
and adducts the
thigh

70
Q

3 MUSCLES ON THE DORSAL SIDE OF THE SHANK

A

GASTROCNEMIUS
TIBIALIS ANTICUS
PERONEUS

71
Q

origin of GASTROCNEMIUS

A

femur

72
Q

insertion of GASTROCNEMIUS

A

Tendon of Achilles

73
Q

action of gastrocnemius

A

Extends the foot
and flexes the
shank

74
Q

origin of TIBIALIS ANTICUS

A

femur

75
Q

insertion of TIBIALIS ANTICUS

A

tibiale and fibulare

76
Q

action of tibiale and fibulare

A

Extends the leg and
flexes the foot

77
Q

origin of PERONEUS

A

Femur

78
Q

insertion of peroneus

A

Tibio-fibula and
Fibulare

79
Q

action of peroneus

A

Draws the shank
against the thigh,
extends and twists
the foot

80
Q

2 MUSCLES ON THE VENTRAL SIDE OF THE SHANK

A

TIBIALIS POSTICUS
EXTENSOR CRURIS

81
Q

origin of TIBIALIS POSTICUS

A

femur

82
Q

insertion of TIBIALIS POSTICUS

A

astragsalus

83
Q

action of TIBIALIS POSTICUS

A

Flexes and twists
the ankle

84
Q

origin of EXTENSOR CRURIS

A

femur

85
Q

insertion of EXTENSOR CRURIS

A

tibio-fibula

86
Q

action of EXTENSOR CRURIS

A

Extends the shank

ZOOLOGY LAB (7 decks)

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