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Which of the following is NOT a major excretory pathway of metals? a. sweat. b. urine....

Which of the following is NOT a major excretory pathway of metals?

a. sweat.

b. urine.

c. respiration.

d. feces.

Science   Anatomy-And-Physiology   
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Answer #1

Answer - C. Respiration

Metals can get into the body via seafood, respiration, pesticides or herbicides, paints, cosmetics, or even with dental fillings. As these substances can't be absorbed by the body, they will get accumulated in the brain, heart, kidney, or in liver. By the process of chelation, the liver and kidney can remove these metals through urine and faeces. through the skin by sweating these metals are removed. The metals which enters through air, on reaching respiratory system, it is removed by mucocilliary movement. they won't contain any specialised mechanism to remove the metal ions by respiration. hence C is the answer.

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