Question 1

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

Accepted Answer

Regulation of blood glucose levels

Question 2

Which layer of the epidermis is responsible for the continuous production of new keratinocytes?

Accepted Answer

Stratum basale

Question 3

A patient presents with yellowish skin and eyes. Which condition is most likely responsible for this appearance?

Accepted Answer

Jaundice

Question 4

Which of the following substances can penetrate the skin due to its lipid solubility?

Accepted Answer

Oxygen

Question 5

Which cell type in the epidermis is primarily responsible for immune defense?

Accepted Answer

Langerhans cell

Question 6

Which of the following best describes the main difference between thick and thin skin?

Accepted Answer

Thick skin contains a stratum lucidum and lacks hair follicles.

Question 7

A burn patient has lost the entire epidermis and dermis, exposing subcutaneous tissue. Which degree of burn is this?

Accepted Answer

Third-degree burn

Question 8

Which gland is responsible for producing an oily substance that lubricates hair and skin?

Accepted Answer

Sebaceous gland

Question 9

Which pigment is primarily responsible for the brownish-black coloration of skin?

Accepted Answer

Eumelanin

Question 10

A patient is unable to produce the enzyme tyrosinase. What is the most likely result?

Accepted Answer

Albinism

Question 11

Which of the following best explains why elderly individuals are more sensitive to cold?

Accepted Answer

They have less subcutaneous fat and reduced blood supply to the dermis.

Question 12

Which of the following is a function of the arrector pili muscle?

Accepted Answer

Contracts to cause goosebumps

Question 13

Which type of membrane lines body cavities that do NOT open to the outside and secretes a lubricating fluid?

Accepted Answer

Serous membrane

Question 14

Which of the following best describes the process of keratinization?

Accepted Answer

Keratinocytes migrate from the stratum basale to the surface, accumulating keratin and eventually dying.

Question 15

Which of the following is a correct sequence of the hair growth cycle?

Accepted Answer

Anagen → Catagen → Telogen

Question 16

A person presents with a red, raised, and hardened lesion on sun-exposed skin that is growing rapidly. Which type of skin cancer is most likely?

Accepted Answer

Squamous cell carcinoma

Question 17

Which of the following best explains why vitamin D deficiency can lead to rickets?

Accepted Answer

Vitamin D is necessary for the absorption of calcium and phosphate, which are essential for bone mineralization.

Question 18

Which of the following is a characteristic of eccrine sweat glands?

Accepted Answer

They secrete directly onto the skin surface and help regulate body temperature.

Question 19

Which of the following best describes the role of Meissner's corpuscles?

Accepted Answer

Detecting light touch

Question 20

A patient presents with dry, scaly skin and thickened stratum corneum due to increased skin cell production. Which condition is most likely?

Accepted Answer

Psoriasis

The Integumentary System: Structure, Function, and Clinical Aspects

Study Guide - Practice Questions