Epithelium

Question 1

What is the definition of epithelium?

Answer 1

Epithelium is a type of tissue that covers the surfaces of the body, inside and out.

Question 2

What are the 5 functions of epithelial tissue?

Answer 2

Protection, absorption, secretion, sensation and transport

Question 3

Fill in the blank: Epithelial cells are avascular, meaning they lack _________.

Answer 3

blood vessels

Question 4

What are the two main types of epithelial tissue based on the number of cell layers?

Answer 4

Simple and stratified epithelium

Question 5

Which type of epithelium is made up of a single layer of cells?

Answer 5

Simple epithelium

Question 6

Which type of epithelium is made up of multiple layers of cells?

Answer 6

Stratified epithelium

Question 7

What is the function of simple squamous epithelium?

Answer 7

Allows for diffusion and filtration

Question 8

Where is simple squamous epithelium found in the body?

Answer 8

Lining blood vessels and air sacs of lungs

Question 9

What is the function of simple cuboidal epithelium?

Answer 9

Secretion and absorption

Question 10

Where is simple cuboidal epithelium found in the body?

Answer 10

Kidney tubules and gland ducts

Question 11

What is the function of simple columnar epithelium?

Answer 11

Absorption and secretion

Question 12

Where is simple columnar epithelium found in the body?

Answer 12

Intestines and stomach lining

Question 13

What is the function of pseudostratified columnar epithelium?

Answer 13

Protection and secretion

Question 14

Where is pseudostratified columnar epithelium found in the body?

Answer 14

Respiratory tract

Question 15

What is the function of stratified squamous epithelium?

Answer 15

Protection against abrasion

Question 16

Where is stratified squamous epithelium found in the body?

Answer 16

Skin and lining of the mouth

Question 17

What is the function of transitional epithelium?

Answer 17

Allows for stretching and recoiling

Question 18

Where is transitional epithelium found in the body?

Answer 18

Urinary bladder

Question 19

What is the function of glandular epithelium?

Answer 19

Secretion of hormones and enzymes

Question 20

Where is glandular epithelium found in the body?

Answer 20

Endocrine and exocrine glands

Question 21

What is the basement membrane?

Answer 21

A thin, delicate membrane that separates epithelial tissue from underlying connective tissue

Question 22

What is the apical surface of epithelial cells?

Answer 22

The top surface that faces the external environment or a body cavity

Question 23

What is the basolateral surface of epithelial cells?

Answer 23

The sides and bottom surface of epithelial cells that are in contact with neighboring cells and the basement membrane

Question 24

What are the 5 functions of epithelium?

Answer 24

Secretion, sensation, protection, absorption and transport

Question 25

What are the 5 characteristics of epithelium?

Answer 25

Cellularity(tightly packed), polarity, avascular, regenerative, supported by connective tissue

Question 26

What separates an epithelium from the underlying connective tissue

Answer 26

Basement membrane

Question 27

What specializations are found on the apical surface of epithelial cells and their function?

Answer 27

Microvilli and cilia to help with movement

Question 28

What shapes of epithelial cells are found on the surface of epithelia?

Answer 28

. Squamous . Cuboidal . Columnar

Question 29

What three features are used to classify epithelia?

Answer 29

Polarity, cellularity, vascularity

Question 30

What Epithelium lines the Oral Cavity?

Answer 30

Squamous stratified epithelium

Question 31

What epithelium is found within salivary glands?

Answer 31

Stratified Cuboidal epithelium

Question 32

What membrane is found inside the oral cavity and where is its lubricant formed?

Answer 32

Mucous membrane

Question 33

What Epithelium covers the hard palate and the tongue and the external surface of the gingiva?

Answer 33

Squamous stratified epithelium

Question 34

What is the difference between an endocrine gland and an exocrine gland? Please give an example of both

Answer 34

Endocrine release hormones into the blood stream whilst exocrine secrete substances to the organs or body surface such as sweat glands and done by glandular epithelium

Question 35

In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basal side of the cell. The specimen is what type of epithelial tissue? a) Columnar b) Stratified c) Squamous d) Transitional

Answer 35

Columnar

Question 36

Which of the following is the epithelial tissue that lines the interior of blood vessels? a) Columnar b) Pseudostratified c) Simple Squamous d) Transitional

Answer 36

Simple Squamous

Question 37

Which type of epithelial tissue specializes in moving particles across its surface and is found in airways and lining of the oviduct? a) Stratified Columnar b) Transitional c) Stratified Squamous d) Pseudostratified ciliated columnar

Answer 37

Pseudostratified ciliated columnar

Question 38

Pictures of types of epithelium

Answer 38