15.3 Thermoregulation in Endotherms Flashcards

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1
Q

Name and state the location of the two receptors that detect temperature change.

A

Peripheral- skin
Thermoreceptors- hypothalamus

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2
Q

What is the body temperature maintained at in endotherms?

A

Between 36 and 38 degrees

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3
Q

What is aestivation?

A

Like hibernation but in hot, dry conditions, to avoid heat stress.

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4
Q

Name 3 responses to hot weather in endotherms.

A

Vasodilation
Increased sweating
Panting
Hair/feathers lie flat

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5
Q

Name 4 responses to cold weather in endotherms.

A

Vasoconstriction
Decreased sweating
Raising hairs/feathers
Shivering

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6
Q

Why do some endotherms hibernate?

A

To avoid cold

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7
Q

What are the two centres involved in thermoregulation?

A

The heat loss centre
The heat gain centre

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