HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blocked sebaceous glands
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Bacteria
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Melanin
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All of the above
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Detailed explanation-1: -Increased sebum (oily material produced by the sebaceous gland) production. Abnormal formation of keratin (the protein that helps make your hair, skin and nails). Increased hormones (androgen). An increased presence of bacteria on skin that causes acne.
Detailed explanation-2: -What causes blackheads on your nose? A blackhead starts to form when your pores become clogged with materials like oil, sebum (a substance naturally produced by your skin), makeup, dirt, and bacteria. Blackheads are noninflammatory acne known as open comedones.
Detailed explanation-3: -Blackheads are made of oxidized melanin and not trapped dirt. Squeezing or scrubbing at blackheads can make them worse. To reduce blackheads, avoid oil-based skin care products, humid environments, tight clothes, and skin products that contain alcohol.