Multiple choice general knowledge

What kind of substance is secreted by the sebaceous glands?

  1. Sweat, or perspiration.

  2. A milky substance consisting of mineralised water.

  3. An oily substance called sebum.

  4. None Of the Above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sebaceous glands secrete an oily, waxy substance called sebum that lubricates and waterproofs the skin and hair. Sebum helps prevent the skin from drying out and has some antimicrobial properties. Sweat is produced by sweat glands (eccrine and apocrine), not sebaceous glands. Mineralized water refers to hard water containing minerals, unrelated to gland secretions.

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