Unit 4

Question 1

What are epithelial tissues primarily responsible for?

Answer 1

Epithelial tissues are primarily responsible for covering body surfaces, lining cavities, and forming glands.

Question 2

True or False: Epithelial tissues have a high degree of vascularity.

Answer 2

False: Epithelial tissues are avascular, meaning they lack blood vessels.

Question 3

Fill in the blank: Epithelial tissues are classified based on the number of ______ and the shape of ______.

Answer 3

layers; cells

Question 4

What are the two main types of epithelial tissues?

Answer 4

Simple and stratified epithelial tissues.

Question 5

Which type of epithelial tissue has only one layer of cells?

Answer 5

Simple epithelium.

Question 6

Name the three basic shapes of epithelial cells.

Answer 6

Squamous, cuboidal, and columnar.

Question 7

True or False: Stratified epithelial tissues are more robust and provide more protection than simple epithelial tissues.

Answer 7

True.

Question 8

What type of epithelial tissue is best suited for diffusion and filtration?

Answer 8

Simple squamous epithelium.

Question 9

Multiple Choice: Which type of epithelial tissue is found in the lining of the respiratory tract? A) Stratified squamous B) Simple cuboidal C) Pseudostratified columnar

Answer 9

C) Pseudostratified columnar.

Question 10

What is the primary function of glandular epithelium?

Answer 10

To produce and secrete substances such as hormones, enzymes, and mucus.

Question 11

Fill in the blank: Epithelial tissues rest on a ______ membrane.

Answer 11

basement

Question 12

Which type of epithelial tissue is specialized for absorption and secretion?

Answer 12

Simple columnar epithelium.

Question 13

True or False: Transitional epithelium can stretch and is found in the urinary bladder.

Answer 13

True.

Question 14

What are tight junctions in epithelial tissues?

Answer 14

Tight junctions are connections between adjacent epithelial cells that prevent leakage of materials.

Question 15

Multiple Choice: Which of the following is NOT a function of epithelial tissue? A) Protection B) Absorption C) Blood circulation

Answer 15

C) Blood circulation.

Question 16

What is the role of microvilli in epithelial cells?

Answer 16

Microvilli increase the surface area for absorption.

Question 17

Fill in the blank: Ciliated epithelial cells help in the movement of ______.

Answer 17

mucus

Question 18

What is the difference between exocrine and endocrine glands?

Answer 18

Exocrine glands secrete substances onto surfaces or into cavities, while endocrine glands secrete hormones directly into the bloodstream.

Question 19

True or False: Epithelial tissues can regenerate quickly after injury.

Answer 19

True.

Question 20

Name a location where simple cuboidal epithelium can be found.

Answer 20

In the kidney tubules.

Question 21

What is the primary characteristic that distinguishes epithelial tissues from other tissue types?

Answer 21

Epithelial tissues have closely packed cells with minimal extracellular matrix.

Question 22

Multiple Choice: Which type of epithelium is characterized by multiple layers of cells and is found in areas subject to abrasion? A) Simple squamous B) Stratified squamous C) Simple columnar

Answer 22

B) Stratified squamous.

Question 23

What do ciliated epithelial cells do?

Answer 23

They help move particles or fluids across the epithelial surface.

Question 24

Fill in the blank: The ______ layer of the basement membrane anchors the epithelial tissue to underlying connective tissue.

Answer 24

basal

Question 25

True or False: Epithelial tissues can be innervated and can detect sensory stimuli.

Answer 25

True.

Question 26

What is the primary function of stratified cuboidal epithelium?

Answer 26

To provide protection and secretion.