Question 1

A yellowish skin color could be the result of

Accepted Answer

Yellowish skin color, also known as jaundice, is a common symptom of liver damage or disease. When the liver is damaged, it may not be able to process and eliminate bilirubin, a yellow pigment that results from the breakdown of red blood cells. This can lead to a buildup of bilirubin in the bloodstream, causing the yellowish discoloration of the skin and whites of the eyes. The other options (A, B, and C) are not typically associated with a yellowish skin color.

Question 2

To be safe and effective,sunscreen preparations should block

Accepted Answer

Both UVA and UVB should be blocked to ensure protection against long-term skin damage and the short-term effects of sunburn.

Question 3

The shaft is a structural component found associated with

Accepted Answer

The shaft is a structural component found associated with hair (or hair follicle).

Question 4

Which of the following conditions is incorrectly paired with its symptoms

Accepted Answer

Psoriasis is an autoimmune disorder characterized by red, raised patches of skin with silvery scales, rather than a fungal infection causing circular scaly lesions.

Question 5

Chef Buoy Yardee is burned on the arm when a kettle of spaghetti sauce explodes.The doctor,using a forceps,pulls on a hair within the area that is burned.The hair easily pulls out.What degree of burn did the patient have?

Accepted Answer

The hair easily pulling out indicates damage to the hair follicles, which are located in the dermis. This level of damage is characteristic of a third-degree burn, which affects the full thickness of the skin, including the dermis where the hair follicles are located.

Question 6

Vitamin D

Accepted Answer

Vitamin D stimulates calcium and phosphate uptake in the small intestine, is formed from a precursor molecule that is made when skin is exposed to ultraviolet light, and is modified in the liver and kidneys. If a person is exposed to very little ultraviolet light, vitamin D may be required in the diet. Therefore, all of these properties apply to vitamin D.

Question 7

Which of the following statements is FALSE about the integument system?

Accepted Answer

Keratin in the epidermis does not absorb UV light. Rather, melanin produced by melanocytes in the skin absorbs UV light and protects underlying structures from its damaging effects.

Question 8

Which of the following statements is true concerning skin cancer?

Accepted Answer

Basal cell carcinoma, the most common type of skin cancer, often appears as a raised, smooth, pearly bump on the sun-exposed skin of the head, neck, or shoulders. Sometimes small blood vessels can be seen within the tumor. Crusting and bleeding in the center of the tumor frequently develops. It is often mistaken for a sore that does not heal. This type of cancer is usually caused by long-term exposure to UV radiation from sunlight. It does not typically produce an open ulcer.

Question 9

When exposed to the cold,the ears and nose may appear red.This is because

Accepted Answer

When exposed to cold, the body initially constricts blood vessels to conserve heat. However, if the exposure continues, it can lead to a compensatory dilation of blood vessels in extremities like the ears and nose. This dilation is a protective mechanism to prevent tissue damage from the cold, which can cause the ears and nose to appear red.

Question 10

Third-degree burns

Accepted Answer

Third-degree burns involve both the epidermis and the dermis and extend into the subcutaneous tissue. There is typically no pain due to destruction of nerve endings. Third-degree burns also result in excessive fluid loss due to damage to blood vessels and can lead to shock.

Question 11

Malignant melanoma

Accepted Answer

Malignant melanoma usually arises from melanocytes in a preexisting mole. It is not the least dangerous form of skin cancer, it can metastasize and is not the most common type of skin cancer.

Question 12

Which of the following is NOT a characteristic of aging of the integumentary system?

Accepted Answer

As we age, there is a decrease in activity of sweat and sebaceous glands, leading to dry skin. The other options are all characteristics of aging of the integumentary system.

Question 13

Which of the following functions of the integumentary system is NOT correctly matched with an example?

Accepted Answer

Excretion refers to the removal of waste products from the body. While sweat glands in the skin excrete certain ions, such as sodium and chloride, hydrogen ions are not typically excreted from the skin. Instead, they are regulated by the kidneys.

Question 14

The type of glands that open on surface of skin and have a watery secretion are

Accepted Answer

Eccrine sweat glands are the type of glands that open on the surface of the skin and have a watery secretion. Apocrine sweat glands secrete a thicker, milky substance and are found primarily in the armpits and groin area. Sebaceous glands secrete an oily substance called sebum. Therefore, the only option that fits the given description is A, eccrine sweat glands.

Question 15

Given that viruses are not affected by antibiotics,which of the following types of skin infection might be successfully treated with an antibiotic?

Accepted Answer

Acne is caused by bacteria which can be eliminated by antibiotics. Cold sores are caused by a virus, chicken pox is a viral infection that typically resolves on its own, and warts are caused by a viral infection that may require other types of treatment.

Question 16

Which of the following processes might be involved in temperature regulation by the integumentary system?

Accepted Answer

The answer of Which of the following processes might be...

Question 17

One of the most immediately life-threatening results of burns to large areas of the body is

Accepted Answer

Large burns can lead to a decrease in systemic blood pressure and the development of cardiovascular shock, which can be life-threatening due to decreased blood flow to vital organs. This can be exacerbated by fluid loss from the burn site and subsequent dehydration. Decreased permeability of remaining capillaries, depression of overall metabolic rate, and suppression of the immune system may also occur, but are not typically the most immediately life-threatening consequences. Dangerously high systemic blood pressures are not usually a result of burns, and may be indicative of other conditions.

Question 18

Regeneration of the epidermis in a second degree burn

Accepted Answer

Regeneration of the epidermis in a second degree burn comes from epithelial cells within the hair follicles and sweat glands as well as from epithelial cells at the edges of the damaged area. Skin grafts may be required for more severe burns, but are not necessarily needed for second degree burns. Therefore, option D, which combines both options stating that regeneration comes from hair follicles, sweat glands, and edges of the damaged area, is the best choice.

Question 19

Which of the following is FALSE?

Accepted Answer

In partial thickness burns, the dermis and epidermis are not completely destroyed. Some parts of these layers may be damaged or destroyed, but some parts remain intact and able to regenerate.

Question 20

The type of glands that open into a hair follicle and have a thick organic secretion are

Accepted Answer

The answer of The type of glands that open into...

Quiz 5: Integumentary System