Question 1

Which layer of the epidermis is responsible for actively dividing cells and is closest to the dermis?

Accepted Answer

Stratum basale

Question 2

A patient presents with yellowish skin coloration. Which pigment is most likely responsible for this change?

Accepted Answer

Carotene

Question 3

Which of the following is a function of the stratum corneum?

Accepted Answer

Acts as a barrier against biological, chemical, and physical assaults

Question 4

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

Accepted Answer

Melanocytes

Question 5

A person with a deficiency in folic acid is at risk for which skin-related issue due to UV exposure?

Accepted Answer

DNA synthesis impairment

Question 6

Which layer of the dermis is responsible for fingerprints and contains capillary loops?

Accepted Answer

Papillary layer

Question 7

A patient with cyanosis will have a blue skin color due to which physiological change?

Accepted Answer

Low oxygenation of hemoglobin

Question 8

Which connective tissue type is found in the papillary layer of the dermis?

Accepted Answer

Areolar connective tissue

Question 9

Which structure anchors the skin to underlying muscle fascia and absorbs shock?

Accepted Answer

Subcutaneous tissue (hypodermis)

Question 10

Which cell type in the epidermis acts as a key activator of the immune system?

Accepted Answer

Dendritic (Langerhans) cells

Question 11

A patient presents with brown or black 'necklace' bruises in the axillae and around the neck. This may be a sign of which underlying condition?

Accepted Answer

Insulin resistance and elevated blood glucose levels

Question 12

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

Accepted Answer

Stratum lucidum

Question 13

Which protein is produced by keratinocytes and gives skin its protective properties?

Accepted Answer

Keratin

Question 14

Which of the following is a clinical sign of extreme stretching of skin that causes dermal tears and silvery white scars?

Accepted Answer

Stretch marks (striae)

Question 15

Which layer of the dermis makes up about 80% of its thickness and contains dense fibrous connective tissue?

Accepted Answer

Reticular layer

Question 16

Which pigment is responsible for the pinkish hue of fair skin due to lower levels of melanin?

Accepted Answer

Hemoglobin

Question 17

Which of the following best describes the function of tactile (Merkel) cells?

Accepted Answer

Sense touch

Question 18

Which layer of the epidermis contains cells that resist tension and pulling due to intermediate prekeratin filaments?

Accepted Answer

Stratum spinosum

Question 19

Which equation best represents the relationship between the number of days for a keratinocyte to migrate from the stratum basale to the surface?

Accepted Answer

$n = 25 	ext{ to } 45$

Question 20

A patient with anemia may present with which skin color change?

Accepted Answer

Pale (blanching)

The Integumentary System: Structure and Function of the Skin

Study Guide - Practice Questions