Question 1

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

Accepted Answer

Internal communication

Question 2

A histologist is preparing a tissue sample for light microscopy. Which of the following steps is necessary to ensure the tissue can be properly visualized?

Accepted Answer

The tissue must be fixed, sectioned, and stained

Question 3

Which of the following is NOT a characteristic of epithelial tissue?

Accepted Answer

Contains abundant extracellular matrix

Question 4

A patient presents with a tumor that has penetrated the basement membrane of an epithelial tissue. What is the most significant clinical implication of this finding?

Accepted Answer

The tumor may invade underlying tissues and metastasize

Question 5

Which type of epithelial tissue is best adapted for rapid diffusion and is found lining air sacs of the lungs and blood vessels?

Accepted Answer

Simple squamous epithelium

Question 6

A gland that releases its product by exocytosis without losing any part of the cell is classified as which type of gland?

Accepted Answer

Merocrine

Question 7

Which of the following best explains why stratified squamous epithelium is found in areas subject to abrasion, such as the skin?

Accepted Answer

It consists of multiple layers, providing protection against wear and tear

Question 8

A researcher observes a tissue sample with cells that appear to be in multiple layers, but all cells touch the basement membrane. Which type of epithelium is this?

Accepted Answer

Pseudostratified columnar epithelium

Question 9

Which of the following statements about the basement membrane is correct?

Accepted Answer

It reinforces the epithelial sheet and resists stretching and tearing

Question 10

A tissue sample from the urinary bladder shows cells that change shape when stretched. Which type of epithelium is present?

Accepted Answer

Transitional epithelium

Question 11

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones into the blood; exocrine glands secrete products onto body surfaces or into body cavities

Question 12

Which of the following cell junctions is primarily responsible for preventing molecules from passing between adjacent epithelial cells?

Accepted Answer

Tight junctions

Question 13

A multicellular exocrine gland with branched ducts and secretory units shaped like sacs is classified as which type?

Accepted Answer

Compound alveolar

Question 14

Which of the following best explains why epithelial tissues are capable of rapid regeneration?

Accepted Answer

They have a high rate of mitosis in basal cells

Question 15

A patient has a genetic defect affecting the formation of desmosomes. Which of the following symptoms would most likely be observed?

Accepted Answer

Reduced ability of epithelial cells to resist mechanical stress

Question 16

Which of the following best describes the function of microvilli on the apical surface of epithelial cells?

Accepted Answer

Increase surface area for absorption

Question 17

A sweat gland that accumulates its product within the cell until the cell ruptures is classified as which type of gland?

Accepted Answer

Holocrine

Question 18

Which of the following equations best represents the relationship between the number of cell layers ($n$) and the type of epithelial tissue?

Accepted Answer

$n = 1$ \implies$ simple epithelium; $n \geq 2$ \implies$ stratified epithelium

Question 19

A biopsy from a patient's respiratory tract reveals ciliated cells and goblet cells in a single layer that appears stratified. What is the most likely function of this tissue?

Accepted Answer

Secretion and movement of mucus

Question 20

Which of the following best explains why connective tissue is necessary beneath all epithelial tissues?

Accepted Answer

Epithelial tissues are avascular and rely on connective tissue for nutrient and waste exchange

Tissue: The Living Fabric – Overview and Epithelial Tissue

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