$$Q = k \times A \times (T_{skin} - T_{env})$$

Question 1

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

Accepted Answer

Production of red blood cells

Question 2

Which layer of the epidermis is only present in thick skin, such as the palms and soles?

Accepted Answer

Stratum lucidum

Question 3

Arrange the layers of the epidermis from deepest to most superficial.

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

Question 4

Which cell type in the epidermis is responsible for producing the pigment melanin?

Accepted Answer

Melanocytes

Question 5

Which cells in the stratum basale are sensitive to touch and act as mechanoreceptors?

Accepted Answer

Merkel cells

Question 6

Which cells in the dermis function as touch receptors?

Accepted Answer

Meissner's corpuscles

Question 7

Which sensory receptor is most sensitive to pressure and vibration?

Accepted Answer

Pacinian corpuscle

Question 8

Which of the following best describes the function of melanocytes?

Accepted Answer

They synthesize melanin to protect against UV radiation.

Question 9

Which alteration of skin color is most likely associated with liver disease?

Accepted Answer

Jaundice

Question 10

Which of the following is a correct pairing of skin cancer type and its origin?

Accepted Answer

Squamous cell carcinoma – originates from keratinocytes in the stratum spinosum

Question 11

Which type of burn affects both the epidermis and the entire dermis, often resulting in loss of sensation due to nerve damage?

Accepted Answer

Third-degree burn

Question 12

Which skeletal condition results from vitamin D deficiency and is characterized by soft, weak bones?

Accepted Answer

Rickets

Question 13

Which of the following is a main accessory structure of the integumentary system?

Accepted Answer

Sweat gland

Question 14

Which type of exocrine gland found in the skin secretes its product directly into hair follicles?

Accepted Answer

Sebaceous gland

Question 15

Which of the following is a correct distinction between eccrine and apocrine sweat glands?

Accepted Answer

Eccrine glands secrete watery sweat for thermoregulation; apocrine glands secrete a thicker, odor-producing sweat.

Question 16

Which of the following is a main cell type of the epidermis responsible for forming a physical barrier?

Accepted Answer

Keratinocyte

Question 17

Which layer of the dermis contains the majority of the skin's blood vessels and nerve endings?

Accepted Answer

Reticular layer

Question 18

Which type of hair is most sensitive to touch and is found primarily in fetal development?

Accepted Answer

Lanugo

Question 19

A patient presents with blue-tinged skin. Which alteration of skin color is this, and what is the most likely underlying cause?

Accepted Answer

Cyanosis; decreased oxygenation of the blood

Question 20

Which formula best represents the relationship between skin surface area ($$A$$), body mass ($$M$$), and heat loss ($$Q) in $$thermoregulation?

Accepted Answer

$$Q = k 	imes A 	imes (T_{skin} - T_{env})$$

Anatomy & Physiology Study Guide: Integumentary System and Related Topics

Study Guide - Practice Questions