Mastering A&P CH 5 Integumentary System

Art-based Question: Integument, Question 9 Which structure is a type of sweat gland?

C

The nails can provide signs of health and disease. Which of the following could be a sign of an underlying medical problem?

The nails appear yellow

Liliana's epidermal layer has been damaged. Which statement best explains the significance of this damage?

It's significant because the cells of the epidermis protect against evaporative water loss, UV radiation, and infection.

Which of the following represents a difference between eccrine sweat glands and apocrine sweat glands?

The secretions of apocrine sweat glands contain more fat and protein than do the secretions of eccrine sweat glands.

Which glands secrete an oily product that softens the skin and hair?

sebaceous glands

Pigment can be found in several layers of the epidermis. In which layer would you expect to find the cells that produce melanin?

stratum basale

The source of the fluid that accumulates in a blister is

the plasma of the blood flowing through the numerous dermal blood vessels

Which dermal layer is responsible for the dermal properties of skin that are evident as cleavage lines?

the reticular layer

Which skin function is not correctly matched with the structure that accounts for that function?

apocrine gland: thermoregulation

Art-based Question: Integument, Question 3 Layer B is composed primarily of __________.

areolar connective tissue

Which of the following is NOT an immediate threat to the body as a result of a severe burn?

bacterial infection

Which of the following would not be a correct characteristic of melanoma?

border regularity

Earwax is made by

ceruminous glands

Respiratory failure can lead to a change in the color of the skin, which is more evident in light-skinned individuals. Which pigmentation factor is affecting this change?

hemoglobin

Vitamin D precursors are produced in the skin in the presence of sunlight. These chemicals are important for the transport of sodium in our intestines.

False

The most dangerous type of skin cancer is

melanoma

Art-based Question: Integument, Question 16 Which of these epidermal layers would be LEAST likely to develop cancer?

A

Art-based Question: Integument, Question 11 What is the most common cell type in the epidermis?

keratinocytes

Art-based Question: Integument, Question 14 Which skin-color-associated, pigment-producing cell is located in the labeled layer D?

melanocyte

The skin is not a __________ barrier.

metabolic

The integument's ability to resist tearing when stretched is largely due to the

network of collagen fibers present in the reticular layer of the dermis

Which of the following is NOT a function of sebum?

protection from UV radiation

Susan sat out in the sun watching a baseball game. She developed small blisters on her unprotected shoulders and neck. What type of burn is represented by the formation of the blisters?

second-degree burn

Which stratum of the epidermis contains the stem cells responsible for regenerating the more superficial layers?

stratum basale

Which of the following layers is found only on the palms of the hands or the soles of the feet?

stratum lucidum

Which epidermal cells act as sensory touch receptors?

tactile cells

Which of the following does NOT protect the skin from bacteria?

the temperature of the skin

Art-based Question: Integument, Question 8 What is the function of the structure at A?

to lubricate hair and prevent infection

Art-based Question: Integument, Question 6 Which of the following correctly describes a common feature of all structures labeled A through D in the figure?

Structures A, B, C, and D are located in the dermis.

Art-based Question: Integument, Question 5 Which of these is NOT a function of the layer at D?

to supply cells to replace those lost from the epidermis

Art-based Question: Integument, Question 12 Cell division would be most common among cells in which of the labeled layers?

D

Liliana's cyanosis is clinically significant because:

It indicates that her blood is low in oxygen.

Which of the following explains why eyebrows do NOT grow as long as the hair on the head?

The hair follicles of the eyebrows are active for only a few months before becoming inactive; the hair follicles in the scalp are active for years before becoming inactive.

Which of the following is a metabolic function of skin?

synthesis of a vitamin D precursor

If a person were born without eccrine glands, what skin function would he or she have a hard time completing?

thermoregulation

Which of the following is a layer of the epidermis found in thin skin?

granular layer

Surface skin cells regenerate from stem cells found in which specific region?

in the stratum basale

A 26-year-old model is concerned about a new scar on her abdomen. She tells her surgeon that there is practically no scar from the appendix operation done when she was 16, but this new scar from the gallbladder operation is "gross." Her appendectomy scar is small, obliquely located on the inferior abdominal surface, and very indistinct. By contrast, the vertical gallbladder scar is large and lumpy. Which of the following best explains why the scars are so different?

The appendectomy incision ran parallel to the "lines of cleavage," which are oriented at an oblique angle in the lower right quadrant. An incision made parallel to the lines of cleavage will gape less and heal more readily. The gallbladder incision cut across these lines, which run in the horizontal plane in the upper right quadrant.

The glycolipids secreted by keratinocytes in the stratum granulosum help reduce water loss across the epidermis.

True

Which skin pigment is made in the skin as a natural defense against UV radiation?

Which skin pigment is made in the skin as a natural defense against UV radiation?

Art-based Question: Integument, Question 1 Which layer is composed primarily of dense irregular connective tissue?

Layer C consists primarily of dense, interwoven fibers of collagen designed to resist tearing from any direction.