15.3 Thermoregulation in Endotherms Flashcards
1
Q
Name and state the location of the two receptors that detect temperature change.
A
Peripheral- skin
Thermoreceptors- hypothalamus
2
Q
What is the body temperature maintained at in endotherms?
A
Between 36 and 38 degrees
3
Q
What is aestivation?
A
Like hibernation but in hot, dry conditions, to avoid heat stress.
4
Q
Name 3 responses to hot weather in endotherms.
A
Vasodilation
Increased sweating
Panting
Hair/feathers lie flat
5
Q
Name 4 responses to cold weather in endotherms.
A
Vasoconstriction
Decreased sweating
Raising hairs/feathers
Shivering
6
Q
Why do some endotherms hibernate?
A
To avoid cold
7
Q
What are the two centres involved in thermoregulation?
A
The heat loss centre
The heat gain centre
