Deck 7: The Integumentary System

Question 1

Skin color can indicate certain disease states. A reddened, flushed face might indicate .

A)hypertension, fever, or embarrassment
B)poor oxygen levels in the blood due to lung disease
C)liver disease
D)Addison's disease

Answer 1

A

Question 2

This accessory organ of the skin is composed primarily of dead, keratinized cells.

A)eccrine gland
B)hair
C)apocrine gland
D)sebaceous gland

Answer 2

B

Question 3

Which of the following is not a function of the skin?

A)synthesizing vitamin C
B)preventing dehydration
C)helping regulate temperature
D)protection

Answer 3

A

Question 4

The cells in this layer of epidermis are dead, and their flat, scale- like remnants are filled with keratin.

A)stratum spinosum
B)stratum basale
C)stratum corneum
D)stratum granulosum

Question 5

These are the most abundant epidermal cells.

A)dendritic cells
B)tactile cells
C)keratinocytes
D)melanocytes

Question 6

What is not true about cutaneous glands, hair, and nails?

A)They are accessory structures of the skin.
B)They reside in the dermis.
C)They are made up entirely of dead cells.
D)They are derived from epithelial tissue.

Question 7

This region of the skin contains abundant elastic and collagen fibers.

A)epidermis
B)both epidermis and dermis
C)dermis

Question 8

This layer of the epidermis contains translucent cells filled with keratin fibrils. It is found only in thick skin.

A)stratum lucidum
B)stratum spinosum
C)stratum corneum
D)stratum granulosum
E)stratum basale

Question 9

Like all epithelial membranes, the skin has an epithelial layer and a connective tissue layer. The keratinized epithelial and connective tissues are .

A)stratified columnar and reticular
B)stratified squamous and dense irregular
C)stratified cuboidal and dense regular
D)simple squamous and areolar

Question 10

Pressure receptors, called lamellar (Pacinian)corpuscles, are located in this layer of the integument.

A)epidermal stratum spinosum
B)epidermal stratum basale
C)dermal papillary layer
D)dermal reticular layer

Question 11

What is true about the blood supply to the skin?

A)Both epidermis and dermis are richly vascularized.
B)Epidermis is avascular and dermis is richly vascularized.
C)Epidermis is richly vascularized and dermis is avascular.
D)Both epidermis and dermis are poorly vascularized.

Question 12

From deep to superficial, the layers of the epidermis of thin skin are .

A)stratum basale, stratum spinosum, stratum granulosum, stratum corneum
B)stratum spinosum, stratum basale, stratum corneum, stratum granulosum
C)stratum granulosum, stratum spinosum, stratum corneum, stratum basale
D)stratum corneum, stratum granulosum, stratum spinosum, stratum basale

Question 13

A freckle is a concentrated spot of this pigment.

A)carotene
B)melanin
C)keratin
D)cyano

Question 14

The hypodermis is .

A)composed primarily of adipose tissue
B)part of the epidermis
C)the third region of the skin
D)part of the dermis

Question 15

What is true about both the epidermis and the dermis?

A)They are highly vascular.
B)Each consists, in part, of dead and dying cells.
C)Papillae and ridges are present in each.
D)Sensory receptors are present in each.

Question 16

Which of the statements below is true for both eccrine and apocrine glands?

A)They are involved in temperature regulation.
B)They produce sweat.
C)They may have a pheromone- producing function.
D)Their sweat contains water, salts, proteins, and fats.

Question 17

Skin color is determined by the degree of oxygenation of the blood and the relative amounts of these two pigments.

A)keratin and melanin
B)melanin and carotene
C)hemoglobin and melanin
D)carotene and hemoglobin

Question 18

What is true about apocrine sweat glands?

A)They are located predominantly in axillary and genital areas.
B)They are important in temperature regulation.
C)They produce clear perspiration consisting primarily of water and salts.
D)They are distributed all over the body.

Question 19

These glands are found all over the skin except in the palms of the hands and soles of the feet. They produce an oily substance that lubricates skin and hair.

A)apocrine sweat glands
B)sebaceous glands
C)eccrine sweat glands
D)endocrine glands

Question 20

Which of the following pigments is not involved in determining skin color?

A)red pigments in blood
B)carotene from carrots and yellow vegetables
C)white pigments in skin cells
D)melanin produced by skin cells

Question 21

Name the substance that protects the DNA of rapidly dividing skin cells from the damage caused by ultraviolet rays from the sun.

A)keratin
B)hemoglobin
C)melanin
D)carotene

Question 22

This region of the nail is responsible for nail growth.

A)nail body
B)nail bed
C)nail root
D)nail matrix

Question 23

The region beneath the free edge of the nail is called the .

A)lunule
B)hyponychium
C)eponychium
D)nail bed

Question 24

This layer of the dermis is responsible for fingerprints.

A)papillary layer
B)reticular layer
C)areolar layer
D)deep stratum basale