$$\text{Vitamin D}_3 \xrightarrow{\text{liver, kidneys}} \text{Calcitriol}$$

Question 1

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

Accepted Answer

Production of red blood cells

Question 2

A patient presents with a third-degree burn on their forearm. Which layer(s) of the skin are destroyed in this type of burn?

Accepted Answer

Epidermis and dermis

Question 3

Which structure is responsible for synthesizing vitamin D3 when exposed to sunlight?

Accepted Answer

Epidermis

Question 4

A person with a deficiency in vitamin D3 would most likely have impaired absorption of which minerals in the small intestine?

Accepted Answer

Calcium and phosphorus

Question 5

Which layer of the skin contains the majority of sensory receptors for touch, pressure, pain, and temperature?

Accepted Answer

Papillary layer of the dermis

Question 6

During the repair of the integument, which phase involves the formation of granulation tissue?

Accepted Answer

Migratory phase

Question 7

Which of the following best describes the composition of the hypodermis?

Accepted Answer

Loose connective tissue with many fat cells

Question 8

A patient with cyanosis will exhibit which skin coloration, and what is the underlying cause?

Accepted Answer

Bluish coloration due to diminished oxygen supply

Question 9

Which type of gland is primarily responsible for producing earwax (cerumen)?

Accepted Answer

Ceruminous gland

Question 10

Which of the following equations correctly represents the conversion of vitamin D3 to its active form in the body?

Accepted Answer

$$	ext{Vitamin D}_3 \xrightarrow{	ext{liver, kidneys}} 	ext{Calcitriol}$$

Question 11

Which layer of the epidermis is responsible for the formation of fingerprints?

Accepted Answer

Stratum basale

Question 12

Which of the following best explains why skin of a light-skinned person appears red during exercise in hot weather?

Accepted Answer

Blood vessels in the dermis dilate

Question 13

Which type of sweat gland is most numerous and is responsible for cooling the body through evaporation?

Accepted Answer

Eccrine (merocrine) sweat gland

Question 14

A person develops a raised, shiny scar after a deep skin injury. What is this type of scar called?

Accepted Answer

Keloid

Question 15

Which of the following statements about hair growth is correct?

Accepted Answer

Hair in the scalp grows for 2-5 years before becoming inactive

Question 16

Which pigment is responsible for the orange-yellow coloration of the skin and is obtained from foods like carrots and squash?

Accepted Answer

Carotene

Question 17

Which of the following best describes the process of keratinization in the epidermis?

Accepted Answer

Cells fill with keratin and die as they move from the stratum basale to the stratum corneum

Question 18

Which of the following is a plausible consequence of reduced glandular secretions in the skin due to aging?

Accepted Answer

Dry and scaly skin

Question 19

Which of the following equations best represents the relationship between heat loss and sweat evaporation from the skin?

Accepted Answer

$$Q = m 	imes L_v$$

Question 20

Which type of gland is most likely to become blocked and inflamed, resulting in acne during puberty?

Accepted Answer

Sebaceous gland

The Integumentary System: Structure and Function

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