Exam 5: The Integumentary System

Vernix caseosa is secreted by sebaceous glands to protect the fetus from amniotic fluid.

Identify the deepest layer of the skin.

Identify the specific layer in which cells begin dying. Dermis

Discuss the three common forms of skin cancer.

One of the factors responsible for skin color differences among races is the amount of melanin the keratinocytes produce and transfer to melanocytes.

Orientation of which dermal fibers is responsible for "lines of cleavage" (tension lines) seen in the skin?

A is pointing to what structure?

In regards to thermoregulatory sweating, sweat that evaporates from the skin before it is perceived as moisture is termed _____ perspiration; whereas sweat that is excreted in larger amounts and is seen as moisture on the skin is called _____ perspiration.

The skin is supplied with blood by two arterial plexuses called the papillary plexus and the cutaneous plexus.

Epithelial cells from the _____ give rise to the sebaceous glands during fetal development.

C is pointing to what structure?

Keratohyalin granules are characteristic of the stratum _____ layer of the epidermis.

The integument consists of which of the following?

Explain how wrinkles result as a normal consequence of aging.

The lunula of a nail appears whiter than the rest of the nail due to the structure of the stratum basale.