muscles Flashcards

chapter 2

1
Q

how many muscles does the human body have?

A

630

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2
Q

what % of body weight do muscles account for?

A

40%

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3
Q

how many muscles are in the face?

A

30

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4
Q

what muscles move/contract with conscious thought?

A

skeletal/voluntary muscle

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5
Q

what muscles are not under conscious control?

A

smooth/involuntary muscle

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6
Q

What muscles are specifically for the heart?

A

cardiac muscle

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7
Q

How can muscular tissue be positively influenced?

A

Massage (hand or mechanical vibrations)
Electrical therapy current
Light rays (infrared light, LED)
Dry heat (heat lamps or heating caps)
Moist heat (steamers and moderately warm steam towels)

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8
Q

how many muscles are in the scalp?

A

four

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9
Q

what are the muscles of the scalp?

A

frontalis(forehead), occipitalis(back of head), and two temporalis on either side

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10
Q

what is the epicranius/occipitofrontalis?

A

it is a broad muscle that covers the top of the skull; includes the occipitalis and frontalis

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11
Q

how many muscles does the eyebrow have?

A

3

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12
Q

what muscle draws the eyebrow down and wrinkles forehead vertically?

A

corrugator

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13
Q

what muscle closes the eye? is the ring muscle of the eye socket.

A

orbicularis oculi

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14
Q

What muscle is across the top of the eyelid and can be damaged during makeup application?

A

levator palpebrae superioris

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15
Q

what are the two muscles of the nose?

A

procerus: lowers the eyebrows and causes wrinkles across bridge of nose
nasalis: ia a two part muscle that covers the transverse and alar parts that flair the nostrils

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16
Q

How many muscles does the mouth have?

A

8

17
Q

what muscle is the thin flat muscle of the cheek between the upper and lower jaw that compresses the cheek and expels hair through lips?

A

buccinator

18
Q

what is the muscle extending alongside the chin that pulls down the corners of the mouth?

A

triangularis, depressor anguli oris

19
Q

what muscle elevates the lower lip and raises and wrinkles the skin of the chin?

A

Mentalis

20
Q

What muscle is the flat band around the upper and lower lips that compresses, contracts, puckers, and wrinkles the lips?

A

orbicularis oris

21
Q

what muscle is associated with smiling?

A

levator anguli oris

22
Q

what muscle is associates with lifting the wings of the nose and upper lip?

A

levator labii superioris (aka quadratus labii superioris)

23
Q

what muscle draws the corners of the mouth out and back when grinning?

A

risorius

24
Q

what muscles extend from the zygomatic bone to the angle of the mouth that elevates the lip, as in laughing?

A

zygomatic major and minor

25
Q

What are the muscles of mastication/chewing?

A

Masseter&temporalis

26
Q

what are the three muscles of the ear?

A

auricularis muscles;
anterior auricularis
auricularis posterior
auricular superioris

27
Q

What are the muscles of the neck?

A

Platysma: responsible for lowering jaw and lip
Sterncleidomastoid: rotate the head up, down, and side to side

28
Q

What muscles attach the arms to the body?

A

Latissimus dorsi: large flat triangular on the lower part of back
Pectoralis major&minor; muscles of the chest that assist in the swinging movements of the arm

29
Q

What is the muscle that covers the back of the neck, shoulders, upper, and middle region of the back?(it shrugs the shoulders and stabilizes the scapula)

A

trapezius

30
Q

what muscle produce the contour of the front and inner side of the upper arm?

A

bicep

31
Q

what large triangular muscle covers the shoulder joint that allows the arm to extend outward and to the side?

A

deltoid

32
Q

what large muscle is on the backside of the upper arm?

A

triceps

33
Q

what are the corrugator and procures called together?

A

glabella

34
Q

what muscles draw a body part away from the midline/extremity?

A

abductors

35
Q

what muscles draw a body part toward the midline/extremity?

A

adductors/adduction

36
Q

what is flexion?

A

is when muscles move to pull the body toward the core of the body

37
Q

what is extension?

A

when a muscle is straightened

38
Q

what is it called when muscles turn inward, when the palm faces downward?

A

pronation

39
Q

what is it called when muscles rotate, when the palm faces upward?

A

supination