chapter 5 A&P

Which of the following statements is true? a. Both vellus and terminal hairs are pigmented. b. At puberty, much of the vellus hair is replaced with terminal hair. c. In males, the hairs of the beard are vellus hairs. d. Hair in the axillary region is vellus hair after puberty. e. The majority of hair on the chest is vellus hair.

at puberty, much of the vellus hair is replaced with terminal hair

Which of the following statements is true? a. Both the hair root and hair shaft contain living cells. b. The hair follicle has a hypodermal root sheath. c. The hair follicle is not associated with sebaceous glands. d. The matrix forms the hair surface. e. Undamaged hair follicles can help regenerate damaged epithelium.

undamaged hair follicles can help regenerate damaged epithelium

The integumentary system has many functions, one of which is protection from cancer. prevention of albinism. detection of painful stimuli. production of Vitamin E. regulation of acid-base balance.

Detection of painful stimuli

The stratum basale: contains cells that undergo meiosis to form new epidermal cells. has a mixture of living and dead cells - mostly dead. None of the above. is easily shed when you rub your hands together. contains many blood vessels that nourish the epidermis.

None of the above

Which of the following statements concerning the epidermis is true? The epidermis is nourished by blood vessels located in the dermis. The most numerous cells in the epidermis are the melanocytes. The dermis is superficial to the epidermis. The epidermis is very permeable to water-soluble molecules. The epidermis contains numerous blood vessels.

The epidermis is nourished by blood vessels located in the dermis.

Which of the following is NOT a complication of a major burn? hypermetabolic state fever decreased protein demand weight loss electrolyte imbalance

decreased protein demand

On coming inside from the cold, students notice that their cheeks are red. This results from: constriction of the blood vessels in the epidermis of the cheeks. constriction of the sweat glands in the cheeks. dilation of the blood vessels in the dermis of the cheeks. damage to the epidermis by the cold. increased permeability of superficial vessels.

dilation of the blood vessels in the dermis of the cheeks

Which of the following statements concerning the hypodermis is false? a. The hypodermis is a site of fat storage. b. Hypodermis is composed of dense connective tissue with collagen and elastin fibers. c. Hypodermis is referred to as subcutaneous tissue. d. The main cell types of the hypodermis are fibroblasts, fat cells, and macrophages. e. The hypodermis attaches the skin to underlying bone and muscle.

hypodermis is composed of dense connective tissue with collagen and elastin fibers

The dermis: functions as padding and insulation. is divided into three distinct layers. contains no blood vessels. does not contain connective tissue. is responsible for most of the skin's structural strength.

is responible for most of the skin's structural strength

As skin cells move toward the surface of the body, they produce a protein that reduces water loss. This process is called pollination. melaninization. germination. keratinization. desquamation.

kerantinization

The activity of apocrine sweat glands: gives the skin a healthy glow. produces an oily secretion. leads to body odor. produces sweat on the palm of the hand. produces cerumen.

leads to body odor

Which of the following skin changes is usually associated with aging? There is an increase in the number of elastic fibers in the skin. Localized increase in sebaceous glands leads to dry skin. The amount of collagen in the dermis increases. Loss of subcutaneous tissue contributes to sagging of the skin. Skin becomes thicker.

los of subcutaneous tissue contributes to sagging of the skin

Skin color is the result of the: thickness of the stratum basale. number of melanocytes in the skin. amount of fat in the hypodermis. quantity of melanin in the skin. number of keratinocytes in the skin.

quantity of melanin in the skin

Vitamin C is essential for normal collagen synthesis. If a child suffered from a vitamin C deficiency, which layer of the skin would be most affected? a. stratum corneum b. stratum granulosum c. stratum basale d. reticular layer of dermis e. epidermis

reticular layer of dermis

Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His was what type of burn? fourth degree fifth degree second degree first degree third degree

second degree

The epidermal layer that is present in the nail bed and the nail matrix is the: stratum corneum. stratum germinativum. stratum lunula. stratum spinosum. stratum lucidum.

stratum lunula

Eskimos wear a great deal of clothing and have limited exposure to U.V. light, but do not suffer from vitamin D deficiency. A possible explanation is, their bodies produce vitamin D another way. they get enough vitamin D in their diet of fish and marine mammals. their exposure to U.V. light in the summer will last for a year. they do not require sunlight for vitamin D formation. they do not need vitamin D.

they get enough vitamin D in their diet of fish and marine mammals.

What type of burn appears white or black with no immediate pain? fourth-degree second-degree partial-thickness third-degree first-degree

third degree