Exam 10: Skin

Match each term with its description or definition. -Movement of heat away from the body caused by air movement or dissipation of heated fluid particles

Cleavage lines and Langer lines refer to the same thing.

In hospitals, frequently a sensor is put over one fingernail to determine whether the patient's blood is properly oxygenated. Explain why this evaluation is possible.

Normally about 10% to 12% of all cells in the stratum basale enter mitosis each day.

Convection is responsible for most of the heat loss of the body.

The hair itself is composed of three layers: the shaft, the cortex, and the cuticle.

Match each term with its definition or description. -Most important cell in the epidermis; makes up about 90% of it

A primary function of the dermal-epidermal junction is to "glue" together the dermis and the epidermis.

Cells in the stratum spinosum layer are rich in RNA to make protein synthesis more efficient.

A scar is a dense mass of keratinocytes that forms when a wound to the skin heals.

Third-degree burns are less severe than first-degree burns and therefore are not as painful.

Name the two types of sweat glands. Explain the difference in their location in the body and the substance they produce.

After several months of extensive weight training, Nick has noticed pinkish, depressed furrows with jagged edges in his axillary region. These markings are a result of:

To increase the efficiency of protein synthesis, cells in which epidermal layer are rich in RNA?

Where are the sebaceous glands located? What do they produce, and what are the properties or functions of the secretion?

Explain how the involvement of desmosomes in a blister is a good example of the relationship between structure and function at the chemical level of organization.

Most of the body is covered by protective thick skin.

Apocrine sweat glands begin functioning shortly after birth.

Fingernail growth is the result of the mitosis of the cells in the stratum:

Fever is always detrimental to the body, so the body temperature should be reduced to normal as soon as possible.