AP BIOLOGY

ANIMAL PHYSIOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
if body temperature is above the set point
A
sweating or panting
B
The rate of cellular respiration in decreased, reducing the amount of heat generated
C
arterioles (small arteries) leading to the skin are dilated, diverting warm blood towards the skin, thus releasing heat to the environment
D
all of the above
Explanation: 

Detailed explanation-1: -When the body core temperature rises above the critical level of 37 C (98.6 F), there is an increase in the rate of heat loss by sweating. Shivering and chemical thermogenesis are strongly inhibited.

Detailed explanation-2: -A set point is the physiological value around which the normal range fluctuates. A normal range is the restricted set of values that is optimally healthful and stable. For example, the set point for normal human body temperature is approximately 37°C (98.6°F).

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