Deck 7: The Integumentary System

Question 1

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

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

Answer 1

C

Question 2

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

Answer 2

A

Question 3

What is true about the blood supply to the skin?

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

Answer 3

B

Question 4

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

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

Question 5

The is the structure responsible for goose bumps.

A) hair follicle
B) sebaceous gland
C) arrector pili
D) lamellar corpuscle

Question 6

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) melanin
C) hemoglobin
D) carotene

Question 7

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

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

Question 8

The hypodermis is .

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

Question 9

A freckle is a concentrated spot of this pigment.

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

Question 10

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

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

Question 11

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

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

Question 12

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

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

Question 13

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

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

Question 14

These are the most abundant epidermal cells.

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

Question 15

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

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

Question 16

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 17

What is true about both the epidermis and the dermis?

A) They are highly vascular.
B) Both are made of dense irregular connective tissue
C) Each consists, in part, of dead and dying cells.
D) Sensory receptors are present in each.

Question 18

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

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

Question 19

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

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

Question 20

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

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

Question 21

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

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

Question 22

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

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

Question 23

The is often referred to as the cuticle of a nail.

A) nail fold
B) lunule
C) matrix
D) eponychium

Question 24

This layer of the dermis is responsible for fingerprints.

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

Question 25

This region of the nail is responsible for nail growth.

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

Question 26

This structure located in the epidermis serves as a tactile (touch) receptor.

A) lamellar corpuscle
B) Langerhans cell
C) Merkel cell
D) root hair plexus