Question 1

Which of the following cells in the epidermis is primarily responsible for producing the pigment that protects against UV radiation?

Accepted Answer

Melanocytes

Question 2

A patient presents with a yellowish tint to their skin and eyes. Which of the following best explains this condition and its likely cause?

Accepted Answer

Jaundice due to buildup of bilirubin from liver dysfunction

Question 3

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

Accepted Answer

Stratum basale

Question 4

A burn patient has blisters, redness, and pain, but the burn does not extend through the entire thickness of the skin. Which degree of burn does this describe?

Accepted Answer

Second-degree burn

Question 5

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

Accepted Answer

They are associated with sensory nerve endings and detect touch.

Question 6

Which of the following is a correct description of the reticular layer of the dermis?

Accepted Answer

It is made of dense irregular connective tissue and contains pressure receptors.

Question 7

A person with a family history of skin cancer, fair skin, and a history of blistering sunburns as a child is at increased risk for which of the following?

Accepted Answer

Skin cancer

Question 8

Which of the following best describes the function of eccrine sweat glands?

Accepted Answer

They secrete a watery sweat for thermoregulation and are found all over the body.

Question 9

A biopsy of a skin lesion reveals rapidly dividing keratinocytes in the stratum basale. Which type of skin cancer is most likely present?

Accepted Answer

Basal cell carcinoma

Question 10

Which of the following is NOT a function of hair?

Accepted Answer

Production of vitamin D

Question 11

A patient presents with brown or black 'necklace' bruising in skin folds. Which underlying condition is most likely associated with this finding?

Accepted Answer

Endocrine disorder

Question 12

Which of the following best describes the ABCD rule for recognizing melanoma?

Accepted Answer

A = Asymmetry, B = Border irregularity, C = Color variation, D = Diameter greater than 6 mm

Question 13

Which of the following glands is responsible for producing earwax (cerumen)?

Accepted Answer

Ceruminous glands

Question 14

Which of the following best explains why third-degree burns are less painful than second-degree burns?

Accepted Answer

They damage nerve endings, reducing sensation.

Question 15

Which of the following is a correct sequence of the five layers of the epidermis from deepest to most superficial?

Accepted Answer

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

Question 16

Which of the following best describes the hypodermis?

Accepted Answer

It is a vascular, subcutaneous layer composed mostly of adipose and areolar connective tissue.

Question 17

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

Accepted Answer

Contracts to cause hair to stand up, producing 'goosebumps'

Question 18

A patient has a mole with the following characteristics: asymmetrical shape, irregular border, multiple colors, and a diameter of 8 mm. According to the ABCD rule, what is the most likely diagnosis?

Accepted Answer

Melanoma

Question 19

Which of the following best describes the function of dendritic (Langerhans) cells in the epidermis?

Accepted Answer

They are part of the immune system and help activate immune responses.

Question 20

Which of the following best explains why skin appears red during erythema?

Accepted Answer

Increased blood flow to the skin due to inflammation or emotional response

Study Guide: The Integumentary System (Anatomy & Physiology)

Guida di studio - Domande di pratica

Study guide - Flashcard