Exam 6: Integumentary System

To speed healing from surgery, incisions should be placed ________ to lines of cleavage.

Carotene, a pigment that contributes to skin color, is acquired in the body by eating various yellow-orange vegetables.

Describe the changes in the skin that occur with aging. Although skin cancers can occur at any age, why might skin cancers have a higher incidence in the elderly?

The epidermal ridges and dermal ________ increase the area of contact between the epidermis and dermis to help connect these layers.

Apocrine sweat glands secrete sweat by having the apical portion of epithelial cells pinch off.

The hypodermis is rich in adipose, and thus its functions include

What type of epithelium is found in the epidermis?

-Which number indicates a dermal papilla?

Skin is very tough but extremely sensitive. Explain how some structures in the skin allow it to withstand a vigorous pinch and tug, while other structures allow it to detect the presence of a mosquito on your arm.

While most of the cells in a hair are dead, the living epithelial cells are found in

The growth rate for a scalp hair is about ________ per day for 1.5 to 7 years, and then the hair becomes dormant.

When exposed to ultraviolet light, keratinocytes convert a steroid precursor into ________, a molecule that is crucial for regulation of calcium levels.

Fine hair called ________, which is unpigmented or lightly pigmented, is the primary human hair and is found on the upper and lower limbs.

The dermis is derived from the germ layer known as ________.

One of the components of sweat is the nitrogenous waste urea.

Which is not a function of the integument?

-Which number indicates the arrector pili muscle?

Severe injuries and burns to the skin result in scars that are

Which type of hair forms the beard on the faces of males?

Sebum has bactericidal properties.