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Ms Cooke > unit 1 > Flashcards

unit 1 Flashcards

1
Q

What is thermoregulation?

A

When your body regulates it’s internal temperature

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2
Q

What is a healthy body temperature?

A

37°c

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3
Q

What factors can raise your temperature?

A

Fever, digestion or exercise

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4
Q

What factors can lower your temperature?

A

Alcohol/drug use or metabolic conditions

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5
Q

What part of the brain controls thermoregulation?

A

Hypothalamus

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6
Q

What are the effects in the body during excess heat?

A

Hyperthermia, heat cramps, heat exhaustion, heat stroke

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7
Q

what is the purpose of synovial fluid?

A

Lubricates the joints
Shock asorbstion

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8
Q

what is hyperplasia?

A

the action of splitting muscle cells to contribute to muscle growth

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9
Q

what is the oxygen disassociation curve?

A

shows the relationship between the percentage of oxygen saturation of blood, and the partial pressure of oxygen.

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10
Q

what is stroke volume?

A

the amount of blood pumped out of the left ventricle in one contraction.

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11
Q

what is cardiac output?

A

the amount of blood pumped out the heart in one minute. ( CO=heart rate x stroke volume )

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12
Q

what is the purpose of the sympathetic nerve?

A

speeds up the heart

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13
Q

what is the purpose of the parasympathetic nerve?

A

slows down the heart

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14
Q

what is starlings law?

A

theory that states that stroke volume increases in response to an increase of blood volume filling the heart

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15
Q

whats AVO2 difference?

A

the difference in oxygen content between arterial and venous blood

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16
Q

what is diffusion rate?

A

the rate that oxygen diffuses from the capillaries to the working muscles

17
Q

what are the golgi tendon organs (GTOs)

A

propiorectors within the tendons that are sensitive to stretching

18
Q

what are chemoreceptors?

A

detect any chemical changes within the blood

19
Q

what are baroreceptors?

A

detect any changes in blood pressure

20
Q

what are thermoreceptors?

A

detects any changes in temperature

21
Q

what are proprioceptors?

A

detects any stretching in the body

22
Q

what is noradrenaline?

A

acts as a neurotransmitter, similar to adrenaline

23
Q

what is noradrenaline?

A

acts as a neurotransmitter, similar to adrenaline

24
Q

how long does the ATP-PC system last?

A

8 - 10 seconds

25
Q

how long does the lactate system last?

A

30 - 90 seconds

26
Q

how long does the lactate system last?

A

40 - 60 seconds during maximum effort

27
Q

what is the krebs cycle?

A

a series of aerobic reactions that happen in the mitochondria

28
Q

what is the electric transport chain?

A

a series of biomechanical reactions during which free energy contained within hydrogen is released.

29
Q

how long does the aerobic system last?

A

hours

30
Q

name an example where the ATP-PC system will be used

A

100m Sprint

31
Q

name some examples where the lactate system will be used?

A

400m or repeated sprints in football

Ms Cooke (1 decks)

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