Question 1

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

Accepted Answer

Cells are loosely bound together with large extracellular spaces.

Question 2

A patient presents with severe dehydration and skin abrasions after a burn. Which essential function of epithelial tissue is most compromised?

Accepted Answer

Providing physical protection

Question 3

Which type of epithelial tissue is best suited for rapid diffusion of gases in the lungs?

Accepted Answer

Simple squamous epithelium

Question 4

Which cell junction is most responsible for preventing the passage of fluids and solutes between adjacent epithelial cells in the intestinal lining?

Accepted Answer

Tight junctions

Question 5

A gland that releases its product by exocytosis, without loss of cytoplasm, is classified as which type of exocrine secretion?

Accepted Answer

Merocrine secretion

Question 6

Which type of epithelial tissue lines the urinary bladder and is specialized to tolerate repeated cycles of stretching and recoiling?

Accepted Answer

Transitional epithelium

Question 7

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

Accepted Answer

Endocrine glands release hormones directly into the blood, while exocrine glands release secretions onto epithelial surfaces through ducts.

Question 8

Which type of epithelial cell is most likely to be found lining the small intestine, where absorption and secretion are critical?

Accepted Answer

Simple columnar epithelium

Question 9

A tissue sample from the skin surface is examined under a microscope. Which type of epithelium would you expect to find?

Accepted Answer

Stratified squamous epithelium

Question 10

Which of the following is a function of microvilli on epithelial cells?

Accepted Answer

Increase surface area for absorption

Question 11

Which type of secretion involves the entire cell bursting to release its contents, as seen in sebaceous glands?

Accepted Answer

Holocrine secretion

Question 12

Which of the following equations correctly represents the relationship between the number of cell layers ($$n) $$and the protection provided by an epithelium ($$P$$), assuming $$P$$ increases linearly with $$n$$?

Accepted Answer

$$P = k n$$

Question 13

Which type of epithelial tissue is most likely to be found lining the ducts of sweat glands and mammary glands?

Accepted Answer

Stratified cuboidal epithelium

Question 14

A patient with chronic bronchitis has impaired movement of mucus in the respiratory tract. Which specialized structure on the epithelial cells is most likely dysfunctional?

Accepted Answer

Cilia

Question 15

Which of the following best explains why simple squamous epithelium is not found on the skin surface?

Accepted Answer

It is too fragile to provide adequate protection against mechanical stress.

Question 16

Which type of cell junction is most abundant between cells in the superficial layer of the skin and allows damaged cells to be lost in sheets?

Accepted Answer

Desmosomes

Question 17

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

Accepted Answer

Storing energy reserves

Question 18

Which type of epithelial tissue appears layered due to nuclei at different heights but is actually a single layer with all cells touching the basement membrane?

Accepted Answer

Pseudostratified columnar epithelium

Question 19

Which of the following best describes the role of cell adhesion molecules (CAMs) in epithelial tissue?

Accepted Answer

They interconnect areas of opposing plasma membranes, providing firm attachment between cells.

Question 20

Which of the following equations best represents the rate of epithelial cell renewal ($$R) as a $$function of stem cell division rate ($$d) $$and the number of damaged cells ($$N$$), assuming $$R is $$directly proportional to both?

Accepted Answer

$$R = k d N$$

Chapter 4: The Tissue Level of Organization – Essentials of Anatomy & Physiology

Guida di studio - Domande di pratica

Study guide - Flashcard