Question 1

What is the function of melanocytes in the skin?

Accepted Answer

Synthesize melanin into granules (melanosomes) at tips of extensions; keratinocytes phagocytose the tips and take in the melanosomes; form epidermal-melanin unit.

Answer

Produce hair follicles

Answer

Produce sweat glands

Answer

Produce sebaceous glands

Question 2

Where do melanocytes originate from?

Accepted Answer

Neural crest cells

Answer

Epidermis cells

Answer

Muscle cells

Answer

Dermal cells

Question 3

What is the role of melanin in the skin?

Accepted Answer

To provide color and protect against UV radiation.

Answer

To produce collagen

Answer

To synthesize vitamin D

Answer

To regulate body temperature

Question 4

Which layer of the skin do melanocytes branch within?

Accepted Answer

Stratum basale (and hair follicles)

Answer

Dermis

Answer

Stratum corneum

Answer

Subcutaneous tissue

Question 5

What colors can melanin produce?

Accepted Answer

Yellow, brown, and black

Answer

Purple, pink, and orange

Answer

White, gray, and silver

Answer

Red, green, and blue

Question 6

What is the primary source of melanin in the skin?

Accepted Answer

Melanocytes

Answer

Langerhans cells

Answer

Keratinocytes

Answer

Fibroblasts

Question 7

Which pigment is responsible for the color of the skin?

Accepted Answer

Melanin

Answer

Carotene

Answer

Hemoglobin

Answer

Bilirubin

Question 8

What is the main function of melanocytes in the epidermis?

Accepted Answer

To synthesize melanin into granules and transfer them to keratinocytes.

Answer

To regulate body temperature

Answer

To produce collagen fibers

Answer

To produce sebum

Question 9

What are melanocytes?

Accepted Answer

Cells derived from neural crest cells that synthesize melanin.

Answer

Cells that produce sebum

Answer

Cells responsible for producing collagen

Answer

Cells that regulate body temperature

Question 10

Which layer of the skin contains melanocytes?

Accepted Answer

Stratum basale

Answer

Stratum granulosum

Answer

Stratum corneum

Answer

Stratum lucidum

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