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A&P > Lab Quiz 3 > Flashcards

Lab Quiz 3 Flashcards

1
Q

Action of a muscle

A

occurs when the muscle contracts

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2
Q

Tendon of origin/tendon of insertion

A

the two tendons that attach skeletal muscles to bones of skeletal framework

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3
Q

Origin

A

muscle tendon that is attached to the stationary bone, does not move when the muscle contracts

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4
Q

of origins in biceps

A

2

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5
Q

of origins in triceps

A

3

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6
Q

of origins in quadriceps

A

4

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7
Q

Insertion

A

muscle tendon that is attached to bone that moves when muscle contracts

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8
Q

Flexion

A

decrease in the angle of a joint

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9
Q

Extension

A

increase in the angel of a joint

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10
Q

Flexor muscle

A

skeletal muscle attached to 2 bones by tendons and crosses a joint that bends (flexes) when the muscle contracts

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11
Q

Extensor muscle

A

skeletal muscle attached to 2 bones by tendons and crosses a joint that extends (straightens) when the muscle contracts

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12
Q

Abductor muscles

A

moves an appendage away from midline

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13
Q

Adductor muscles

A

moves an appendage closer to the midline

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14
Q

Innervation

A

nerves that stimulate muscle contraction

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15
Q

Tendon

A

CT that attaches skeletal muscle to bone

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16
Q

Ligament

A

CT that connects 2 bones together

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17
Q

Sternocleidomastoid
where?
O I A

A

O: sternum & clavicle
I: mastoid process of temporal bone
A: head movement, left/right, nodding up/down

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18
Q

Orbicularis occuli
where?
A

A

A: circular muscle that closes the eye

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19
Q

Orbicularis oris
where?
A

A

A: circular muscle that closes the mouth

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20
Q

Platysma

where?

A

Part of muscle that attaches to skin in neck

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21
Q

Pectoralis major

where?

A

where?

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22
Q

External oblique
where?
A

A

A: contracting laterally bends torso side to side

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23
Q

Rectus abdominus
where?
O I A

A

O: pubic symphysis & pubic crest
I: costal cartilage of ribs & xiphoid process of sternum
A: flexes vertebral column & compresses the abdomen w contraction

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24
Q

External intercostals
where?
A

A

in front of ribs, fibers going up

A: raises ribs at inhalation to increase the size of thoracic cavity

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25
Q

Internal intercostals
where?
A

A

between the ribs, fibers going down

A: lowers ribs at exhalation to decrease the size of thoracic activity

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26
Q

Diaphragm

where?

A

above the abdominal cavity

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27
Q

3 openings in the diaphragm

A

Esophageal hiatus
Aortic hiatus
Caval opening

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28
Q

Muscles at rest

A

relaxing

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29
Q

Muscles at work

A

contracting

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30
Q

Junction

A

joined together

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31
Q

When a muscle works, it:

A

shortens

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32
Q

Rectus

A

means to run parallel to midline

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33
Q

Trapezius

where?

A

where?

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34
Q

Deltoid

where?

A

where?

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35
Q

Latissimus dorsi

where?

A

where?

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36
Q

Biceps brachii
where?
O I A

A

O: 2 tendons of origin both on scapula
I: radius (proximal)
A: flexes forearm at elbow joint and flexes arm at shoulder point

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37
Q

Brachialis
where?
O I A

A

O: humerus (proximal)
I: ulna (proximal)
A: flexes forearm at elbow joint

38
Q

Triceps brachii
where?
O I A

A

O: humerus & scapula (proximal)
I: ulna (proximal)
A: extends forearm at elbow joint

39
Q

Brachioradalis
where?
O I A

A

O: humerus (distal)
I: radius (distal)
A: flexes forearm at elbow joint

40
Q

Flexor carpi radialis
where?
O I A

A

O: humerus
I: metacarpals
A: flexes hand at wrist joint

41
Q

Extensor carpi radialis
where?
O I A

A

O: humerus
I: metacarpals
A: extends hand at wrist joint

42
Q

Location of neuromuscular junction

A

on the muscle fibers (footprints)

43
Q

Importance of neuromuscular junction

A

????

44
Q

Rectus femoris
where?
O

A

O: ilium of coxal bone

45
Q

Vastus lateralis
where?
O

A

O: femur

46
Q

Vastus intermedius
where?
O

A

O: femur

47
Q

Vastus medialis
where?
O I A

A

O: femur
I: patella and tibial tuberosity
A: used to extend leg at the knee, flex the thigh at the hip

48
Q

Neuron

A

nerve cell

49
Q

Neurotransmitter

A

chemical made & released by neuron

50
Q

Semi tendinosus
where?
O A

A

O: ischial tuberosity of coxal bone
A: flexes the leg at the knee, extends thigh at the hip to move leg backward

51
Q

Semi membranosus
where?
O A

A

O: ischial tuberosity of coxal bone
A: flexes leg at knee, extends thigh at hip to move leg backward

52
Q

Biceps femoris
where?
O A

A

O: ischial tuberosity of coxal bone
A: flexes leg at knee, extends thigh at the hip to move leg backward

53
Q

Sartorius
where?
A

A

A: flexes the leg at the knee

flexes, abducts, and laterally rotates thigh at hip to allow us to sit with our legs crossed

54
Q

Gluteus maximus
where?
A

A

A: extends thigh at hip to move leg backward, rotates thigh laterally

55
Q

Gracilis
where?
A

A

A: adducts thigh, medially rotates thigh, flexes leg at knee

56
Q

Tibialis anterior
where?
O I A

A

O: tibia
I: metatarsals
A: dorsiflexes foot at ankle joint

57
Q

Dorsiflexion

A

occurs when you stand on your heels

58
Q

Gastrocnemius
where?
O I A

A

O: lateral & medial condyle of femur
I: calcaneus by calcaneal tendon
A: plantar flexes foot at ankle joint

59
Q

Plantar flexion

A

occurs when you stand on your toes

60
Q

Soleus

where?

A

located beneath the gastrocnemius

61
Q

Calcaneal tendon

where?

A

where?

62
Q

No. 1 on body chart

A

ocularis oculi

63
Q

No. 2 on body chart

A

ocularis oris

64
Q

No. 3 on body chart

A

sternocleidomastoid

65
Q

No. 4 on body chart

A

platysma

66
Q

No. 5 on body chart

A

pectoralis major

67
Q

No. 6 on body chart

A

external oblique

68
Q

No. 7 on body chart

A

rectus abdominus

69
Q

No. 8 on body chart

A

external intercostals

70
Q

No. 9 on body chart

A

internal intercostals

71
Q

No. 11 on body chart

A

trapezius

72
Q

No. 12 on body chart

A

deltoid

73
Q

No. 13 on body chart

A

latissimus dorsi

74
Q

No. 14 on body chart

A

biceps brachii

75
Q

No. 15 on body chart

A

brachialis

76
Q

No. 16 on body chart

A

triceps brachii

77
Q

No. 17 on body chart

A

brachioradialis

78
Q

No. 18 on body chart

A

flexor carpi radialis

79
Q

No. 19 on body chart

A

extensor carpi radialis

80
Q

No. 20 on body chart

A

rectus femoris

81
Q

No. 21 on body chart

A

vastus lateralis

82
Q

No. 22 on body chart

A

vastus intermedius

83
Q

No. 23 on body chart

A

vastus medialis

84
Q

No. 24 on body chart

A

semitendinosus

85
Q

No. 25 on body chart

A

semimembranosus

86
Q

No. 26 on body chart

A

biceps femoris

87
Q

No. 27 on body chart

A

sartorius

88
Q

No. 28 on body chart

A

gluteus maximus

89
Q

No. 29 on body chart

A

gracilis

90
Q

No. 30 on body chart

A

tibialis anterior

91
Q

No. 31 on body chart

A

gastrocnemius

92
Q

No. 32 on body chart

A

soleus

A&P (4 decks)

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