Multiple choice general knowledge sports

When you exercise, sweating (water that you lose) comes from

  1. Recycled urine

  2. Blood plasma

  3. Extra water contained in the lower layers of cells

  4. cerebro-spinal fluid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sweat is produced by sweat glands primarily from fluid drawn from blood plasma. As blood circulates to the skin surface, water and electrolytes are extracted through sweat glands to regulate body temperature. It does NOT come from urine, deep cellular layers, or cerebrospinal fluid.

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