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muscle system > muscle systm > Flashcards

muscle systm Flashcards

1
Q

what is muscle

A

the only tissue capable of shortening and contracting

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2
Q

what is the skeletal muscle function

A

attaches to bone and are largely responsible for voluntary.

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3
Q

what is the structure of the skeletal muscle

A

striated muscle: made of striation

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4
Q

what is the structure of smooth muscle?

A

small,spindle-shaped,none-striated and ivoluntary(not under conscious control) and have a single nucleus

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5
Q

what is the function of the smooth muscle

A

cells are arranged in layers, the alternate contracting and relaxing of these layers changes the size and the shape of the organ and aid in the moving the contents of the organ

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6
Q

where is the cardiac muscle located?

A

soley in the walls of the heart

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7
Q

what is the structure of cardiac muscle

A

branched and cross striated cells that join together at structures called intercalated disc

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8
Q

what is the function of cardiac muscle

A

the arrangement of cells enables spontaneous contractions of neighboring cells to provide heartbeat

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9
Q

what is extensibility

A

the ability to be stretched

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10
Q

what is elasticity

A

the ability to return to normal length after a stretch

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11
Q

what is irritability

A

the ability to respond to stimulus

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12
Q

what is contractility

A

the ability to contract and shorten

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13
Q

what is concentric

A

shortening of muscle

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14
Q

what is eccentric

A

lengthening of muscle

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15
Q

what is isometric

A

no change in muscle strength

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16
Q

how does muscle generate heat

A

The oxidation of metabolic fuels such as carbohydrates and fatty acids in the mitochondria of the muscle fibers produces adenosine triphosphate.

17
Q

what is muscle strength

A

determined by how much weight a muscle can lift

18
Q

what is muscle growth

A

after you workout, your body repairs or replaces damaged muscle fiber through a cellular process where muscle fibers are raised together to form new muscle protein strands of myofibrils

19
Q

what is muscle endurance

A

the ability to continue contracting a muscle, or group of muscles, against resistance, such as weight or body weight over a period of time.

20
Q

what is muscle fatigue?

A

when the body is providing much oxygen to the cells as required your cells have no problem keeping up with aerobic respiration.

21
Q

How does muscle fatigue occurs

A

When the ATP supply fails to meet the consumption of ATP during exercise

22
Q

where is frontalis and what is it function

A

location: forehead
function: raise eyebrows

23
Q

where is Orbicularis Oculi and what is it function

A

Location: around eyes
Function: Close eyes

24
Q

where is Nasalis and what is it function

A

Location: Nose
Function: modify size of nostrils

25
Q

where is Orbicularis Oris and where is it function:

A

Location: Encircles Mouth
Functions: closes lips, kissing motion

26
Q

where is Zygomaticus and what is it function

A

Location: Connects cheekbones to corner of mouth
Function: smiling

27
Q

where is Platysma and what is it function

A

Location: Front and side of mouth
Function: pulls corners of mouth down, opens mouth wide

28
Q

where is Masseter and what is it function

A

Location: Connects cheekbones to corners of mouth
Function: Closes jaw

29
Q

where is Temporalis and what is it function

A

Location: muscle over the temporal bone
Function: assist masseter with closing jaw

30
Q

where is Sternocleidomastoid
and what is it function

A

Location: Side of neck
Function: lift and rotate head

31
Q

where is Pectoralis Major and what is it function

A

Location: Upper chest
Function: flex arm

32
Q

where is Rectus Abdominis and what is it function

A

Location: center of abdominal
Function: flex and rotation of trunk

33
Q

where is Internal Oblique
and what it is function

A

Location: Right and left side of abdomen
Function: flex and rotation of trunk

34
Q

where is Trapezius
and what is it function

A

Loction: Upper back and neck
Function: extension of head

35
Q

where is Erector Spinae
and what is it function

A

Length of verbal column
Function: rotation and flexion of vertebral column

36
Q

where is Diaphragm
and what is it function

A

Location: separated thoracic and abdominal cavity
Function: enlarges thoracic cavity for inhalation

37
Q

where is Internal intercostal
and what is it function

A

Location: connects ribs
Function: decreases thoracic activity during forced breathing

38
Q

where is External intercostal
and what is it function

A

Location: Connects the ribs
Function: help enlarge thoracic cavity for inhalation

muscle system (1 decks)

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