Skin wrinkles with age because
A)collagen degrades in the subcutaneous layer as the epidermis shrinks.
B)fat is lost from the subcutaneous layer and the dermis shrinks.
C)the number of sweat glands diminishes.
D)epidermal cells undergo a burst of cell division.

Question

Quizplus · Accepted Answer

Wrinkles occur with age because fat is lost from the subcutaneous layer and the dermis shrinks. This results in less support for the skin, leading to sagging and wrinkles. Collagen degradation also plays a role, but it is secondary to the loss of fat. Sweat gland decrease and epidermal cell division do not directly contribute to wrinkles.

Skin Wrinkles with Age Because