Post Exam #4 (Chapter 5)

Which of the following statements is true?

A. Both vellus and terminal hairs are pigmented. B. In males, the hairs of the beard are vellus hairs. C. The majority of hair on the chest is vellus hair. D. Hair in the axillary region is vellus hair after puberty. E. At puberty, much of the vellus hair is replaced with terminal hair. (CORRECT ANSWER)

Which of the following statements is false?

A. None of the above. (CORRECT ANSWER) B. Secretions from sebaceous glands provide protection against bacteria. C. Most sebaceous glands are connected by a duct to the upper portion of the hair follicle. D. Secretions from sebaceous glands oil the hair and skin. E. Sebaceous secretions are lipid soluble.

Which of the following statements is true?

A. Undamaged hair follicles can help regenerate damaged epithelium. (CORRECT ANSWER) B. The hair follicle is not associated with sebaceous glands. C. The hair follicle has a hypodermal root sheath. D. Both the hair root and hair shaft contain living cells. E. The matrix forms the hair surface.

The stratum basale

A. contains many blood vessels that nourish the epidermis. B. is easily shed when you rub your hands together. You Answered C. contains cells that undergo meiosis to form new epidermal cells. D. has a mixture of living and dead cells - mostly dead. E. None of the above. (CORRECT ANSWER: E)

A victim of an automobile accident goes into shock, which results in decreased blood flow. The victim's skin will

A. have a reddish hue. B. develop a yellow tint. C. none of the above. (CORRECT ANSWER) D. become bright red. E. not change color.

Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His was what type of burn?

Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His was what type of burn?

Which of the following statements concerning the hypodermis is false?

Hypodermis is composed of dense connective tissue with collagen and elastin fibers.

Which of the following skin changes is usually associated with aging?

Loss of subcutaneous tissue contributes to sagging of 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?

Subcutaneous layer of dermis

Which of the following statements concerning the epidermis is true?

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

Which of the following is NOT a complication of a major burn?

decreased protein demand

The integumentary system has many functions, one of which is

detection of painful stimuli.

On coming inside from the cold, students notice that their cheeks are red. This results from

dilation of the blood vessels in the dermis of the cheeks.

The dermis

is responsible 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

keratinocytes

The activity of apocrine sweat glands

leads to body odor.

Skin color is the result of the

quantity of melanin in the skin.

The epidermal layer that is present in the nail bed and the nail matrix is the

stratum germinativum.

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,

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?

third-degree