Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

The is the structure responsible for goose bumps.

Accepted Answer

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

Question 4

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

Accepted Answer

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. C

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

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

Accepted Answer

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 9

A freckle is a concentrated spot of this pigment.

Accepted Answer

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

Question 10

What is true about the blood supply to the skin?

Accepted Answer

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.

Question 11

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

Accepted Answer

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

Question 12

What is true about both the epidermis and the dermis?

Accepted Answer

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 13

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

Accepted Answer

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 14

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

Accepted Answer

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 15

The hypodermis is .

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

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.

Accepted Answer

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

Question 18

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

Accepted Answer

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

Question 19

This layer of the dermis is responsible for fingerprints.

Accepted Answer

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

Question 20

This region of the nail is responsible for nail growth.

Accepted Answer

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

Exam 7: The Integumentary System

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The is the structure responsible for goose bumps.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A freckle is a concentrated spot of this pigment.

Correct AnswerverifiedShow Answer

What is true about the blood supply to the skin?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is true about both the epidermis and the dermis?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The hypodermis is .

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

This layer of the dermis is responsible for fingerprints.

Correct AnswerverifiedA

This region of the nail is responsible for nail growth.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified