Question 1

Which of the following best describes the main function of nervous tissue in the human body?

Accepted Answer

It transmits electrical impulses to regulate and control body functions.

Question 2

Which of the following is a key structural difference between cutaneous and mucous membranes?

Accepted Answer

Cutaneous membranes consist of a keratinized stratified squamous epithelium, while mucous membranes have a non-keratinized epithelium.

Question 3

A patient presents with yellowing of the skin and eyes. Which pigment and underlying condition is most likely responsible for this clinical sign?

Accepted Answer

Bilirubin; liver disorder (jaundice)

Question 4

Which of the following best explains why third-degree burns are life-threatening?

Accepted Answer

They destroy both the epidermis and dermis, leading to dehydration and electrolyte imbalance.

Question 5

Which cell type in the epidermis is primarily responsible for producing the pigment that protects against UV radiation?

Accepted Answer

Melanocytes

Question 6

A patient with a deep cut that damages both the epidermis and dermis will heal primarily through which process?

Accepted Answer

Fibrosis, forming scar tissue

Question 7

Which of the following best describes the role of the hypodermis?

Accepted Answer

It anchors the skin to underlying structures and acts as a shock absorber.

Question 8

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

Accepted Answer

Regulation of blood glucose levels

Question 9

A person with a genetic mutation that prevents the production of keratin would most likely experience which of the following symptoms?

Accepted Answer

Increased risk of dehydration due to loss of skin barrier function

Question 10

Which of the following best explains why elderly individuals are more prone to skin infections and injuries?

Accepted Answer

Thinning of the epidermis and decreased efficiency of tissue repair

Question 11

A patient presents with a scaly, reddened papule on the scalp that grows rapidly and may metastasize if not treated. Which type of skin cancer is most likely?

Accepted Answer

Squamous cell carcinoma

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 is a characteristic of serous membranes?

Accepted Answer

They consist of a simple squamous epithelium and areolar connective tissue, secreting a lubricating fluid.

Question 14

A patient with a burn that is red, swollen, and painful, affecting both the epidermis and upper dermis, most likely has which type of burn?

Accepted Answer

Second-degree (partial-thickness) burn

Question 15

Which of the following best explains why hair turns gray or white with age?

Accepted Answer

Decreased melanin production by melanocytes in hair follicles

Question 16

Which of the following is true regarding the process of tissue repair after injury?

Accepted Answer

Fibrosis replaces destroyed tissue with scar tissue, which may not restore original function.

Question 17

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

Accepted Answer

They act as immune cells, patrolling for pathogens.

Question 18

A patient with a mutation affecting the lamina propria would most likely have issues with which type of membrane?

Accepted Answer

Mucous membrane

Question 19

Which of the following best explains the difference in healing between a superficial skin abrasion and a deep laceration?

Accepted Answer

Superficial abrasions heal by regeneration, while deep lacerations often heal by fibrosis.

Question 20

Which of the following equations best represents the relationship between the surface area of a burn and the risk of dehydration?

Accepted Answer

$$ Risk \ of \ dehydration \propto Surface \ Area \ of \ Burn $$

Lecture 5

Study Guide - Practice Questions

Study Guide - Flashcards