Which of the Following Statements Indicates the Way in Which

question 56

Multiple Choice

Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?

• A)The skin is protected by the synthesis of three pigments that contribute to the skin's color.
• B)Carotene,which accumulates in the stratum corneum and hypodermal adipose tissue,is synthesized in large amounts in the presence of sunlight.
• C)Prolonged exposure to the sun induces melanin dispersion,which in turn acts as a natural sunscreen.
• D)The skin is protected by increasing the number of epidermal dendritic cells,which help to activate the immune system.

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Definitions:

Endometrium

The inner lining of the uterus that thickens during the menstrual cycle in preparation for potential pregnancy.

Progesterone

A steroid hormone released by the corpus luteum and placenta, playing a key role in the menstrual cycle and maintaining the early stages of pregnancy.

Myometrium

Muscular wall of the uterus; composed of smooth muscle; also called muscular layer.

Trophoblast

The outer layer of cells of a blastocyst, which provides nutrients to the embryo and develops into a large part of the placenta.