Practice Questions for Epithelium Tissues

Stratified squamous cells are associated with which of the following functions?

protection

The epithelial type that has a single layer of cells resting on a basement membrane with an irregular arrangement of nuclei is which of the following?

pseudostratified ciliated columnar

What kind of epithelium would you find in the upper airways?

pseudostratified columnar

What kind of epithelium would you find in the GI tract?

simple columnar

What kind of epithelium would you find in the kidney tubules?

simple cuboidal

What is transitional epithelium classified as...simple or stratified epithelium?

stratified epithelium

The transitional epithelial cells are located at which of the following sites?

the bladder

Cuboidal epithelial cells are found in which of the following locations?

the kidney tubules

What kind of epithelium would you find in the bladder and ureters?

transitional

Epithelial tissue consists of what?

Covering or lining epithelium and glandular epithelium

What is the cell junction that is located on the lateral surface of an epithelial cell and has a protein plaque, intermediate fibers, and the protein cadherin?

Desmosome

True/False The type of epithelial cell that is associated best with diffusion in many parts of the body is the transitional cell. The cell that lines the upper airways is the stratified squamous cell.

FALSE

True/False The type of epithelial tissue found in different locations in the human body is related to function. You would expect to find simple columnar epithelium at sites of absorption; you would expect to find simple squamous epithelium at sites of diffusion; you would expect the find stratified squamous epithelium lining the urinary system for protection and distensibility.

FALSE

What cell junction that is noted for a channel created by the protein connexin?

Gap junction

The cell junction that prevents the separation of the epithelial cell from the basement membrane is which of the following?

Hemidesmosome

What kind of epithelium would you find in the air sacs (alveoli) of the lungs?

Simple squamous

True/False The basement membrane is made up of two components. The basal lamina is secreted by the epithelial cells above. The reticular lamina is secreted by the connective tissue layer below.

TRUE

True/False The pancreas is an organ that has both endocrine and exocrine functions. The endocrine portion secretes hormones that travel in the bloodstream to have their effect at a distant site. The exocrine portion releases digestive enzymes into the pancreatic duct; these enzymes travel a short distance from their site of production to have their effect.

TRUE

The blood-brain barrier is an excellent example of which of the following types of cell junctions?

Tight junction

Cuboidal and columnar cells are associated with which of the following functions?

absorption

All of the following statements are true regarding glandular epithelium EXCEPT which of the following? a. exocrine glands secrete their products into a duct or lumen b. acinar cells are round in shape c. the most common type of exocrine glands are apocrine glands d. the glands are termed simple versus compound based upon amount of branching

c. the most common type of exocrine glands are apocrine glands

What do goblet cells secrete?

mucus