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Anatomy > Muscles of the Body > Flashcards

Muscles of the Body Flashcards

1
Q

Muscles are named according to several factors including….

A

direction of fibers, size of muscle, location of muscle, number of origins, location of origin and insertion, shape of muscle, action

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2
Q

Rectus refers to

A

muscle fibers parallel to the midline

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3
Q

Transversus refers to

A

muscles perpendicular to the midline

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4
Q

Oblique refers to

A

muscles fibers that are diagonal

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5
Q

The terms (4) referring to the largest muscle of the group is

A

maximus, magnus, major, vastus

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6
Q

The terms (2) referring to the smallest muscle in the group

A

minimus or minor

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7
Q

The term referring to the longest muscle in the group

A

longus

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8
Q

Brevis refers to

A

the shortest muscle in the group

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9
Q

Latissimus refers to

A

the widest muscle in the group

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10
Q

Frontalis muscle is located

A

above your frontal bone (forehead)

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11
Q

Temporalis muscle is located

A

above your temporal bone

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12
Q

Lateralis refers to a muscle located

A

laterally (away from the midline)

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13
Q

Medialis refers to a nemuscle located

A

towards the midline of the body

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14
Q

Intermedius refers to a muscle located

A

in between or in the middle

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15
Q

Tibialis refers to a muscle located

A

above your tibia bone

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16
Q

Fibularis refers to a muscle located

A

above your fibula bone

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17
Q

Supra means

A

above

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18
Q

infra or sub means

A

below

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19
Q

A muscle origin refers to

A

the point of attachment to the more stationary bone

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20
Q

A muscle insertion refers to

A

the point of attachment to the moving bone

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21
Q

Which muscle has an origin with the sternum and clavicle and an insertion with the mastoid

A

sternocleidomastoid

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22
Q

What shape is the deltoid muscle?

A

triangle

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23
Q

What shape is the trapezius muscle?

A

trapezoid

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24
Q

What shape is the serratus muscle?

A

saw-toothed

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25
Q

What shape is an orbicularis muscle?

A

circular

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26
Q

What shape is a platys muscle?

A

flat

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27
Q

What shape is a quadratus muscle?

A

square

28
Q

Gracilis means

A

a slender muscle

29
Q

What action does a flexor muscle do?

A

decreases the joint angle

30
Q

What action does an extensor muscle do?

A

increases the joint angle

31
Q

What action does an adductor muscle do?

A

moves a bone towards the midline of the body (adds)

32
Q

What action does an abductor muscle do?

A

moves a bone away from the midline of the body

33
Q

Supinator means

A

turning the palms up or the outer edge of your sole bearing the weight

34
Q

Pronator means

A

turning your palm down or the inner edge of your sole bearing the weight

35
Q

A rotator muscle does what action?

A

moves a bone around an axis

36
Q

What action does a levator muscle make?

A

it raises something or produces a superior movement

37
Q

What action does a depressor muscle cause?

A

it produces an inferior movement

38
Q

Where is your frontalis muscle?

A

on top of your frontal bone, “your forehead”

39
Q

What action does your frontalis muscle make?

A

raising eyebrows and wrinkling your forehead

40
Q

Where is your orbicularis oculi

A

it is a round muscle around your eye

41
Q

What action does your orbicularis oculi make?

A

closing eye, squinting, winking, blinking

42
Q

Where is your orbicularis oris?

A

surrounds your mouth

43
Q

What action does your orbicularis oris produce?

A

closing your mouth and protruding your lips, called the “kissing muscle”

44
Q

Where is your buccinator?

A

It runs horizontal across your cheek

45
Q

What action does your buccinator produce?

A

flattening your cheeks as in whistling or blowing into an instrument…..it also helps you chew

46
Q

Where is your zygomaticus?

A

it runs diagonal from the corner of your mouth to your cheek bone

47
Q

What action does your zygomaticus produce?

A

smiling

48
Q

What muscle is the main chewing muscle

A

the masseter

49
Q

Which 3 muscles are involved in chewing?

A

buccinator, masseter, temporalis

50
Q

Where is your platysma?

A

A flat muscle that covers the front and side of the neck. It runs from the center (chin area) laterally to your clavicle area.

51
Q

What action does your platysma produce?

A

frowning

52
Q

Where is your sternocleidomastoid?

A

it inserts at your mastoid process behind your ear and has two origins, one at your sternum and the other your clavicle

53
Q

What action does your sternocleidomastoid produce?

A

flexing your neck (bowing), AKA the praying muscle

54
Q

Which muscle is a large muscle on your chest?

A

pectoralis major

55
Q

Which muscle is the longest in the body?

A

Sartorius

56
Q

Which muscle flexes your leg at the knee?

A

hamstrings (bicept femoris, semitendinosus, semimembranosus)

57
Q

Which muscle extends your leg at the knee?

A

Quadricepts (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis)

58
Q

Which muscle is your calf muscle or the “Toe Dancers” muscle?

A

gastrocnemius

59
Q

Which muscle is a “slender” muscle located most medial? in your thigh?

A

gracilis

60
Q

Which muscle is used for punching and pushing?

A

serratus anterior

61
Q

Which muscle is used for swimming?

A

latissmus dorsi

62
Q

What is the order of your abdominal muscles from most superficial to deepest?

A

external oblique, internal oblique, rectus abdominus, transverse abdominus

63
Q

Which of your hamstring muscles is most medial?

A

semimembranosus

64
Q

Which muscle is used most for jumping or climbing stairs?

A

gluteus maximus

65
Q

Which is the most superficial butt muscle?

A

gluteus maximus

66
Q

Which muscle is used to flex your forearm?

A

bicepts brachii

67
Q

Which muscle is used to extend your forearm?

A

tricepts brachii

Anatomy (8 decks)

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