Question 1

Which type of epithelial tissue is best suited for areas of the body where diffusion and filtration occur, such as the air sacs of the lungs and the glomerular capsule of the kidney?

Accepted Answer

Simple squamous

Question 2

A biopsy from the epidermis of the skin reveals multiple layers of flat cells. Which epithelial tissue type is most likely present?

Accepted Answer

Stratified squamous (keratinized)

Question 3

Which of the following best describes the function of pseudostratified ciliated columnar epithelium in the respiratory tract?

Accepted Answer

Secretion and movement of mucus

Question 4

A patient presents with damage to the lining of their urinary bladder. Which epithelial tissue is most likely affected?

Accepted Answer

Transitional

Question 5

Which epithelial tissue type lines the digestive tract, such as the stomach and intestines, and is specialized for absorption and secretion?

Accepted Answer

Simple columnar

Question 6

A histological slide shows a single layer of cube-shaped cells with centrally located nuclei. Which tissue is this most likely to be?

Accepted Answer

Simple cuboidal

Question 7

Which of the following is a key distinguishing feature of transitional epithelium compared to other epithelial types?

Accepted Answer

Ability to stretch and change shape

Question 8

A tissue sample from the ducts of glands shows two layers of cube-shaped cells. Which epithelial type is this?

Accepted Answer

Stratified cuboidal

Question 9

Which of the following best explains why the esophagus is lined with nonkeratinized stratified squamous epithelium?

Accepted Answer

To protect against abrasion from food

Question 10

A researcher is studying the movement of mucus in the trachea. Which cell structure and tissue type are most important for this function?

Accepted Answer

Cilia in pseudostratified columnar epithelium

Question 11

If a tissue sample from the kidney tubules is examined, which epithelial type would you expect to find and why?

Accepted Answer

Simple cuboidal, for secretion and absorption

Question 12

Which of the following equations best represents the relationship between surface area ($$A$$), volume ($$V$$), and diffusion rate ($$D) in $$simple squamous epithelium?

Accepted Answer

$$D = k \frac{A}{d}$$

Question 13

A patient with chronic acid reflux develops changes in the epithelial lining of the esophagus. Which process is most likely occurring?

Accepted Answer

Metaplasia from stratified squamous to simple columnar epithelium

Question 14

Which of the following best describes the difference between keratinized and nonkeratinized stratified squamous epithelium?

Accepted Answer

Keratinized contains a layer of dead cells filled with keratin; nonkeratinized does not

Question 15

A histological image shows tall, closely packed cells with nuclei at different heights, giving a false impression of stratification. Which tissue is this?

Accepted Answer

Pseudostratified columnar epithelium

Question 16

Which of the following best explains why transitional epithelium is found in the urinary bladder?

Accepted Answer

It provides a waterproof barrier and can stretch as the bladder fills

Question 17

A tissue sample from the nasal cavity is examined. Which epithelial type is most likely present and what is its primary function?

Accepted Answer

Pseudostratified ciliated columnar; trapping and moving particles

Question 18

Which of the following best describes the arrangement of nuclei in simple columnar epithelium?

Accepted Answer

Nuclei are aligned at the same level near the base of the cells

Question 19

A patient has a genetic defect affecting the production of keratin. Which tissue would be most directly affected and what symptom might result?

Accepted Answer

Stratified squamous (keratinized); increased risk of dehydration and infection

Question 20

Which of the following best explains why simple squamous epithelium is not found lining the esophagus?

Accepted Answer

It is too thin to protect against abrasion from food

Epithelial Tissue: Types, Locations, and Microscopic Identification

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