Special cells， ____， in the epidermis produce the black pigment that gives color to the skin and protects against damage from the ultraviolet rays of the sun. A:melanocytes B:erythrocytes C:leukocy

Special cells， ____， in the epidermis produce the black pigment that gives color to the skin and protects against damage from the ultraviolet rays of the sun.

A:melanocytes
B:erythrocytes
C:leukocytes
D:phagocytes
答案: melanocytes

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相关试题

Adipose tissue mainly exists in ______.

A:epidermis
B: dermis
C:subcutaneous layer
D:corium
答案: subcutaneous layer

Which of the following is not the accessory structure of the skin?

A:hair
B: nail
C:sweat gland
D:sebum
答案: sebum

___ protrudes into the hair bulb and provides nutrients for the growing hair.

A:Hair papilla
B:Hair follicle
C:Hair root
D:Arrector pili muscle
答案: Hair papilla

网课题库

Special cells， ____， in the epidermis produce the black pigment that gives color to the skin and protects against damage from the ultraviolet rays of the sun. A:melanocytes B:erythrocytes C:leukocytes D:phagocytes 答案: melanocytes

Adipose tissue mainly exists in ______. A:epidermis B: dermis C:subcutaneous layer D:corium 答案: subcutaneous layer

Which of the following is not the accessory structure of the skin? A:hair B: nail C:sweat gland D:sebum 答案: sebum

___ protrudes into the hair bulb and provides nutrients for the growing hair. A:Hair papilla B:Hair follicle C:Hair root D:Arrector pili muscle 答案: Hair papilla

Special cells， ____， in the epidermis produce the black pigment that gives color to the skin and protects against damage from the ultraviolet rays of the sun.

A:melanocytes
B:erythrocytes
C:leukocytes
D:phagocytes
答案: melanocytes

Adipose tissue mainly exists in ______.

A:epidermis
B: dermis
C:subcutaneous layer
D:corium
答案: subcutaneous layer

Which of the following is not the accessory structure of the skin?

A:hair
B: nail
C:sweat gland
D:sebum
答案: sebum

___ protrudes into the hair bulb and provides nutrients for the growing hair.

A:Hair papilla
B:Hair follicle
C:Hair root
D:Arrector pili muscle
答案: Hair papilla