Question 1

Which of the following best defines histology?

Accepted Answer

The study of the normal structure of tissues

Question 2

Which of the following is NOT a general component of the extracellular matrix?

Accepted Answer

Plasma membrane

Question 3

A tissue sample shows tightly packed cells with little visible extracellular matrix, forming sheets that cover surfaces and line cavities. Which primary tissue class does this describe?

Accepted Answer

Epithelial tissue

Question 4

Which type of cell junction forms an impermeable seal between adjacent cells, preventing the passage of substances between them?

Accepted Answer

Tight junctions

Question 5

Which of the following best describes the function of simple squamous epithelium?

Accepted Answer

Rapid diffusion or transport across cells

Question 6

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

Accepted Answer

Merocrine (eccrine)

Question 7

Which of the following is a function of stratified squamous epithelium found in the epidermis?

Accepted Answer

Protection against abrasion

Question 8

Which extracellular matrix component is primarily responsible for tissue elasticity?

Accepted Answer

Elastin fibers

Question 9

A patient has a genetic defect affecting gap junctions in cardiac muscle. Which physiological process would be most directly impaired?

Accepted Answer

Transmission of electrical signals between cells

Question 10

Which type of epithelial tissue is specialized for stretching and is found lining the urinary bladder?

Accepted Answer

Transitional epithelium

Question 11

Which formula best represents the relationship between the rate of diffusion ($$R) $$and the surface area ($$A) of $$simple squamous epithelium, assuming all other factors are constant?

Accepted Answer

$$R = k 	imes A$$

Question 12

Which of the following cell morphologies is most likely to be found in nervous tissue?

Accepted Answer

Stellate

Question 13

Which type of exocrine gland releases its product by the rupture of entire cells?

Accepted Answer

Holocrine

Question 14

A tissue sample from the small intestine shows a single layer of tall, narrow cells with microvilli and goblet cells. Which type of epithelium is this?

Accepted Answer

Simple columnar epithelium

Question 15

Which of the following best describes the role of glycosaminoglycans (GAGs) in the extracellular matrix?

Accepted Answer

They attract water molecules, contributing to the ground substance's viscosity

Question 16

Which of the following is a distinguishing feature of pseudostratified columnar epithelium?

Accepted Answer

All cells touch the basement membrane but nuclei are at different heights

Question 17

Which of the following is TRUE regarding endocrine glands?

Accepted Answer

They secrete hormones directly into the bloodstream

Question 18

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

Accepted Answer

Its multiple layers provide a protective barrier that can be shed and replaced

Question 19

A researcher observes a tissue with cells that are round when relaxed and flatten when stretched, forming a protective, flexible lipid layer. Where is this tissue most likely found?

Accepted Answer

Ureter and bladder

Question 20

Which of the following best describes the function of desmosomes in epithelial tissue?

Accepted Answer

They anchor cells together and resist mechanical stress

Histology I: Introduction to Tissues and Epithelial Tissue

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