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Human Physiology > Thermoregulation > Flashcards

Thermoregulation Flashcards

1
Q

Are humans endotherms or exotherms?

A

Endotherms

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2
Q

What is an endotherm?

A

Generate their own body heat and do not rely on sunlight for warmth

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3
Q

During what times of the day is the core body temperature at it’s highest and lowest?

A

Lowest during night, highest during day

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3
Q

How do humans regulate their own body temperature?

A

There is a characteristic
circadian fluctuation in body
core temperature of about
1°C

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4
Q

What are the mechanisms of heat exchange?

A

Radiation from the sun, Conduction to clothing, Convection from air movement, Evaporation of sweat

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5
Q

How is body temperature maintained?

A

Heat loss and heat gain

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6
Q

At what core body temperature will hypothermia occur?

A

Less than 29°C

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7
Q

What can happen when the body gets too hot?

A

Hyperthermia

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8
Q

What happens when hyperthermia occurs?

A

Heat exhaustion/ heatstroke

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9
Q

What is acclimatization?

A

Process of becoming accustomed to a new environment

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Human Physiology (7 decks)

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