THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The skin plays a role in excretion through the production of sweat by sweat glands. Sweating eliminates excess water and salts, as well as a small amount of urea, a byproduct of protein catabolism.

Detailed explanation-2: -The skin eliminates excess water and salts in sweat. The lungs exhale water vapor and carbon dioxide.

Detailed explanation-3: -Sweat-mediated elimination of toxic substances The skin also acts as an excretory organ. It is estimated that 3 to 4 million eccrine sweat glands which together roughly weigh the same as one kidney (i.e., 100 g) are distributed over almost the entire human body surface.

Detailed explanation-4: -The skin excretes substances primarily through sweat glands. Several conditions have been demonstrated to be associated with diminished sweating. However, few studies have concentrated on the metabolism and excretion of sweat.