THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Skin helps in maintaining water balance in the body by preventing excess water loss through skin by evaporation. The skin plays a role in excretion through the production of sweat by sweat glands. Sweating eliminates excess water, salts and a small amount of urea.

Detailed explanation-2: -When the body is low in water, the pituitary gland secretes vasopressin (also called antidiuretic hormone) into the bloodstream. Vasopressin stimulates the kidneys to conserve water and excrete less urine.

Detailed explanation-3: -The kidney plays a major role in the control of water balance by its ability to adjust water excretion independently of solute excretion. In other words, a given solute load can be excreted in a variable volume of urine according to water availability.

Detailed explanation-4: -The skin is a barrier membrane that separates environments with profoundly different water contents. The barrier properties are assured by the outer layer of the skin, the stratum corneum (SC), which controls the transepidermal water loss.