Integumentary system

Question 1

Which of the following is NOT a function of the integumentary system?

Answer 1

Regulation of blood pressure

Functions of the integumentary system include protection, vitamin D synthesis, and sensation.

Question 2

What is the outermost layer of the skin called?

Answer 2

Epidermis

The epidermis is the visible outer layer of skin.

Question 3

Which type of cell is primarily responsible for producing melanin?

Answer 3

Melanocytes

Melanocytes are specialized cells that create the pigment melanin, which gives skin its color.

Question 4

The protein that provides skin with its waterproofing ability is called:

Answer 4

Keratin

Keratin is a fibrous protein that helps in forming a protective barrier.

Question 5

What is the primary function of sweat glands?

Answer 5

Cool the body

Sweat glands help regulate body temperature through the process of perspiration.

Question 6

What is the primary function of sweat glands?

Answer 6

B. Cool the body

Question 7

The thickest layer of the epidermis, responsible for producing keratin, is the:

Answer 7

B. Stratum spinosum

Question 8

Which of the following structures is located in the dermis?

Answer 8

B. Hair follicles

Question 9

The hypodermis primarily consists of:

Answer 9

A. Adipose tissue

Question 10

Which of the following is a skin appendage?

Answer 10

B. Sebaceous gland

Question 11

What type of burn damages the epidermis and part of the dermis, causing blisters?

Answer 11

B. Second-degree burn

Question 12

The pigment responsible for giving skin its yellowish hue is:

Answer 12

C. Carotene

Question 13

The part of the hair that is visible above the skin is called the:

Answer 13

C. Shaft

Question 14

Which layer of the skin contains blood vessels?

Answer 14

B. Dermis

Question 15

Sebum is produced by which type of gland?

Answer 15

C. Sebaceous gland

Question 16

Which type of sweat gland is most numerous and helps regulate body temperature?

Answer 16

B. Eccrine gland

Question 17

The layer of the epidermis where mitosis occurs is the:

Answer 17

B. Stratum basale

Question 18

What type of tissue makes up the dermis?

Answer 18

B. Dense irregular connective tissue

Question 19

Which of the following skin conditions is caused by clogged sebaceous glands?

Answer 19

C. Acne

Question 20

The primary function of melanocytes is to:

Answer 20

C. Protect against UV radiation

Question 21

What is the term for the crescent-shaped area at the base of a nail?

Answer 21

B. Lunula

Question 22

The protein elastin gives skin its:

Answer 22

B. Elasticity

Question 23

Which type of UV radiation is most harmful to the skin?

Answer 23

B. UVB

Question 24

The arrector pili muscle is responsible for:

Answer 24

B. Causing goosebumps

Question 25

Which of the following conditions is characterized by an autoimmune attack on melanocytes?

Answer 25

A. Vitiligo

Question 26

The layer of the epidermis found only in thick skin is the:

Answer 26

B. Stratum lucidum

Question 27

Which vitamin is synthesized in the skin when exposed to sunlight?

Answer 27

D. Vitamin D

Question 28

What type of gland produces earwax?

Answer 28

C. Ceruminous gland

Question 29

Which of the following contributes to skin color?

Answer 29

how much melanin is produced by melanocytes

Question 30

The skin helps regulate body temperature by:

Answer 30

C. Dilating or constricting blood vessels

Question 31

The immune cells found in the epidermis are called:

Answer 31

C. Langerhans cells

Question 32

What is the primary role of Merkel cells?

Answer 32

A. Sensory perception

Question 33

Which layer of skin is responsible for fingerprints?

Answer 33

C. Papillary layer of the dermis

Question 34

Albinism is caused by a defect in the production of:

Answer 34

D. Melanin

Question 35

Which type of burn extends through all layers of the skin?

Answer 35

C. Third-degree burn

Question 36

What part of the hair contains actively dividing cells?

Answer 36

C. Bulb

Question 37

Which structure in the skin detects deep pressure?

Answer 37

Pacinian corpuscles

Question 38

The stratum corneum consists of

Answer 38

Dead, flattened keratinized cells

Question 39

Excessive collagen production during healing can lead to

Answer 39

keloid scar

Question 40

Which of the following glands is associated with body odor?

Answer 40

apocrine

Question 41

The dermis is divided into which two layers?

Answer 41

papillary reticular

Question 42

Which cells in the skin play a role in immunity?

Answer 42

Langerhans

Question 43

The tough outermost layer of the epidermis is composed of:

Answer 43

keratinized dead cells

Question 44

Apoptosis of cells occurs within the…

Answer 44

stratum granulosum

Question 45

Dense irregular connective tissue will be found in the

Answer 45

dermis

Question 46

This type of exocrine gland undergoes a higher rate of mitosis due to its holocrine secretion

Answer 46

sebacous gland

Question 47

Which condition results from androgens inhibiting hair growth in genetically predisposed adults

Answer 47

male pattern baldness

Question 48

You stepped on a nail. List the sequential strata of the epidermis that the nail penetrated through to reach the dermis

Answer 48

corneum, luciderm, granulosum, spinosum, basale

Question 49

Goose bumps are caused by

Answer 49

contraction of arrector pili mm's

Question 50

When you are hot, blood vessels in the dermis _____ to maintain homeostasis

Answer 50

dilate

Question 51

When you are cold, blood vessels in the dermis _____ to maintain homeostasis

Answer 51

constrict

Question 52

Heat loss from the body will _____ when blood vessels in the dermis dilate

Answer 52

increase

Question 53

Heat loss from the body will _____when blood vessels in the dermis constrict

Answer 53

decrease