Question

Water loss from insensible perspiration?

A)is too small to be measured reliably.
B)depends on apocrine sweat glands.
C)is unaffected by damage to the epidermis.
D)is approximately 0.5 liters a day.
E)always exceeds sensible perspiration.

Answer 1

Insensible perspiration is the water loss from the skin surface without sweating, and it is too small to be measured reliably. It is different from sensible perspiration.

Step-by-step explanation:

Insensible perspiration refers to the water loss from the skin surface without overt sweating and from air expelled from the lungs. It is called insensible because a person is usually unaware of this type of water loss. The amount of water lost from insensible perspiration is too small to be measured reliably, so option A) is the correct answer. Insensible perspiration is different from sensible perspiration, which is the water loss through sweating. Therefore, option E) is incorrect as insensible perspiration does not always exceed sensible perspiration.