Epithelium And Glands

Question 1

Where is epithelial tissue found?

Answer 1

It can be found on all internal external surfaces of your body.

Question 2

What is the purpose of epithelial tissue?

Answer 2

The purpose is relative to location but Combe to protect, secrete or for absorption.

Question 3

What tissue lines body cavities, hollow organs and is the major tissue in glands?

Answer 3

Epithelial tissue

Question 4

What are some examples of epithelial tissue?

Answer 4

Sweat glands
Lining of the intestines respiratory tract and abdominal cavity
Outer layer of the skin (epidermis)

Question 5

Parts of the Epithelial cell include?

Answer 5

Cell membrane, Nucleus, Cytoplasm, Microvilli, Cilia, Stereocilia

Question 6

What are the Microvilli?

Answer 6

Non-motile finger like structures on the surface of these cells that increase surface area to allow for the better absorption of substances.

Question 7

Where can Microvilli be found?

Answer 7

The small intestine

Question 8

What are motile tiny hair like structures found on the surface of epithelial cells in order to move cells or substances along the outer surface of the cell called?

Answer 8

Cilia

Question 9

What are stereocilia?

Answer 9

Specialized Microvilli that resemble cilia and are found on the epithelial tissue inside your inner ear for balance.

Question 10

How are epithelia classified ?

Answer 10

They are classified based on the number of cell layers, and the shape of the cells in the surface layer.

Question 11

If an epithelium has on layer what is it called?

Answer 11

Simple epithelium

Question 12

If there are two one more layers of cells what is it called?

Answer 12

Stratified epithelium

Question 13

What are the three types/shapes of epithelial cells?

Answer 13

Squamous, cuboidal and columnar

Question 14

What are the features of simple squamous epithelium?

Answer 14

Single layered, flattered and/or centrally located nuclei

Question 15

What are The functions of simple squamous epithelia?

Answer 15

Cardiovascular system - transport of fluids
Lungs - gas exchange via capillaries
Peritoneal cavity - reduction of friction between visceral organs

Question 16

What are some examples of simple squamous epithelium?

Answer 16

Lining of the loops of Henle, outer wall of the intestine lining the inner surface of the cornea
Blood vessels, lungs, mesothelium, heart

Question 17

What are the features of simple cuboidal epithelium?

Answer 17

Single square like layer, spherical centrally located nucleus

Question 18

What are the Functions of the cuboidal epithelium?

Answer 18

Secretion, protection, absorption, transportation of filtered substances

Question 19

What are some examples of cuboidal epithelium ?

Answer 19

Tubules of the Kidney, follicles of the thyroid, surfaces of the ovaries, excretory ducts etc

Question 20

What occurs as a result of the shape and dimension of the cuboidal epithelium?

Answer 20

Due to the greater thickness it allows the cytoplasm to be rich in mitochondria and other organelles to facilitate high levels of active transport.

Question 21

What are the features of simple columnar epithelium?

Answer 21

Tall, single layered and the nucleolus is nasally located and elongated

Question 22

Name some functions of simple columnar epithelium?

Answer 22

Absorption, protection, secretion of mucus in some cases goblet cells