Exam 7: A: Skin and Its Appendages

If a person were in a totally bacteria-free environment,any sweat produced would have no odor.

In a cool environment,conduction accounts for most of the heat loss of the body.

The rule of palms and the rule of tens are two methods used in estimating the extent of body surface area burned.

Both the epidermis and the dermis continually undergo shedding and regeneration.

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

Dendritic cells develop in the dermis of the skin but migrate to the epidermis of the skin to function.

Because sebaceous glands produce a substance rich in triglycerides and fatty acids,it provides a good growth medium for fungi.

Toenails and fingernails grow at the rate of about 0.5 mm a week,but they grow faster in the winter than they do in the summer.

The hair follicle servers as a primary location of adult stem cells for skin cells like melanocytes.

People who have mostly pheomelanin in their skin tend to have darker skin than people who have mostly eumelanin.

Growth of nails is the result of mitosis in the stratum basale.

Hair is usually not found on thick skin.

The cells of the germinal matrix are responsible for forming hair.

In order for proper growth and repair of the skin to occur,both insulin-like growth factor and vitamin D must be present in the correct amounts.

Hair follicles and skin glands,made up of epithelial tissue,extend from the epidermis into the reticular layer.

Light-skinned people have fewer melanocytes in their skin than do dark-skinned people.

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

The protective function of the skin is limited to the protection of the underlying tissue from abrasion and mechanical injury.

Langer lines is the more correct name for stretch marks.

The skin is a thin and relatively flat organ and is an example of a serous membrane.