$$ \text{Total Burn Area} = (\text{Head} + \text{Each Arm} + \text{Each Leg} + \text{Front Torso} + \text{Back Torso} + \text{Genitals}) $$

Question 1

Which of the following best describes the main difference between serous and mucous membranes?

Accepted Answer

Serous membranes line closed body cavities and cover organs, while mucous membranes line body surfaces that open directly to the exterior.

Question 2

A patient presents with a patchy loss of skin pigment on their forehead, as shown in the image. Which condition is most likely responsible?

Accepted Answer

Vitiligo

Question 3

Which layer of the skin is primarily responsible for the mechanical strength and elasticity of the skin?

Accepted Answer

Dermis

Question 4

Which of the following is NOT a function of the skin?

Accepted Answer

Regulation of blood glucose

Question 5

A burn that destroys both the epidermis and the entire dermis, possibly affecting underlying muscle and bone, is classified as:

Accepted Answer

Third-degree burn

Question 6

Which structure is responsible for producing 'goosebumps' by causing hair to stand up straight?

Accepted Answer

Arrector pili muscle

Question 7

Which type of gland is most numerous in the skin and plays a major role in body temperature regulation?

Accepted Answer

Eccrine sweat gland

Question 8

A patient with a hereditary condition characterized by a total lack of melanin in the skin and eyes is diagnosed with:

Accepted Answer

Albinism

Question 9

Which of the following best explains why a third-degree burn is initially painless?

Accepted Answer

The destruction of nerve endings in the dermis prevents pain sensation.

Question 10

Which of the following is a connective tissue membrane that lines the spaces between bones and produces a lubricating fluid?

Accepted Answer

Synovial membrane

Question 11

A patient presents with a red, flat, and purple mark on the skin present since birth, as shown in the image. This is most likely a:

Accepted Answer

Port-wine stain

Question 12

Which of the following best describes the function of the lamina propria in mucous membranes?

Accepted Answer

It is the connective tissue layer that supports the epithelium.

Question 13

Which of the following skin lesions is characterized by a small, firm, raised area?

Accepted Answer

Papule

Question 14

A patient with a chronic inflammatory skin condition presents with silvery, scaly plaques on the elbows and knees. What is the most likely diagnosis?

Accepted Answer

Psoriasis

Question 15

Which of the following is the correct formula for estimating the percentage of body surface area burned in an adult using the 'rule of nines'?

Accepted Answer

$$ 	ext{Total Burn Area} = (	ext{Head} + 	ext{Each Arm} + 	ext{Each Leg} + 	ext{Front Torso} + 	ext{Back Torso} + 	ext{Genitals}) $$

Question 16

Which of the following best describes the process of vitamin D synthesis in the skin?

Accepted Answer

UV light stimulates skin cells to produce a precursor that is converted to vitamin D in the liver and kidneys.

Question 17

Which of the following is a function of the tactile (Meissner) corpuscle in the skin?

Accepted Answer

Detecting light touch

Question 18

A patient with a separation of the nail from the nail bed is most likely experiencing which condition?

Accepted Answer

Onycholysis

Question 19

Which of the following best explains why subcutaneous injections are commonly administered into the hypodermis?

Accepted Answer

The hypodermis contains loose, spongy tissue with rich blood supply for rapid absorption.

Question 20

Which of the following is the most serious form of skin cancer, often associated with the ABCDE rule for self-examination?

Accepted Answer

Melanoma

Skin and Membranes: Structure, Function, and Clinical Conditions

Study Guide - Practice Questions