Homeostatis in Action Flashcards

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1
Q

What is your normal body temperature?

A

37 degrees

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2
Q

What do you need enough of in your blood for your cells to respire?

A

glucose

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3
Q

what would not enough glucose do to your body and what would too much glucose do to your body?

A

too much- send you into a coma

not enough- leave you without sufficient energy

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4
Q

What three things does your body maintain?

A
  • blood glucose concentration
  • body temeprature
  • water balance
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5
Q

Homeostatis definition…

A

the maintenance of a constant internal environment

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6
Q

What word is used to describe homeostatis and what does it mean?

A

involuntary- you do not know when they are occurring

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7
Q

why does our body temperature have to be around 37 degrees?

A

to allow our enzymes to work optimumly and not denature

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8
Q

what physical things happen when you get hot?

A
  • sweat
  • get redder
  • feel thirsty
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9
Q

what physical things happen when you are cold?

A
  • shivering
  • wont be sweating
  • urinate more
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10
Q

why when you are hot or cold does your body shiver or sweat?

A

its your bodies way of bringing things back to the normal level

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11
Q

what happens to your body temperature on a hot day?

A

it goes up

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12
Q

the changes in your body temperature are detected by?

A

your receptors

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13
Q

what section of your brain controls your body temperature?

A

thermoregulatory centre

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14
Q

what does your brain have that monitors the temperature of your blood flowing through it?
and what does it combine this information with?

A

receptors

the receptors that cover your skin

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15
Q

how do receptors communicate with your thermoregulatory centre?

A

via electrical impulses sent along your nerves

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16
Q

which three ways does your thermoregulatory centre coordinate a return back to normal temperature?

A
  • using sweat glands
  • skeletal muscles
  • by controlling the blood that reaches the surface of your skin
17
Q

when you become hot what do sweat glands do?

A

produce sweat

18
Q

how much sweat can your body produce per hour?

A

several litres

19
Q

what should you do when you sweat?

A

drink water

20
Q

what does sweat contain?

A

mainly water with urea and salts

21
Q

what does sweat do from your skin and what does it transfer away?

A

evaporate and transfers heat energy