Question

What would happen if a person was placed in water at ${15}^o$ C over a short period of time in each of these areas ?

	peripheral circulation	Sweat glands	Liver	Skeletal Muscle
1	Increased blood flow	Increased Secretion	Decreased temperature	Decreased shivering
2	Increased blood flow	Decreased Secretion	Increase in temperature	Increased shivering
3	Decreased blood flow	Increased Secretion	No change in temperature	Increased shivering
4	Decreased blood flow	Decreased Secretion	No change in temperature	Increased shivering

• A. Option 1
• B. Option 2
• C. Option 3
• D. option 4

Answer 1

The correct option is B Option 2

When the temperature surrounding the body decreases, vasodialation occurs and the blood flow to the skin increases, which in turn increases the body temperature.

When the temperature in the surrounding decreases,the thermoregulatory center's receptors do not receive any signals and hence sweat glands decrease their sectretion.

The liver is an important source of heat and its temperature also increases slightly due to the increased blood flow to maintain its temperature for the enzyme function.

The skeletal muscles increase shivering so that the friction helps in increasing the body temperature when the surrounding temperature rises.

Therefore, the answer should be,

Peripheral circulation - Increased blood flow

Sweat glands - Decreased secretion

Liver - Increased temperature

Skeletal Muscles - Increased shivering.