Epithelial Cells

Question 1

Purpose of epithelium

Answer 1

Covers body surfaces , lines body cavities and lines hollow organs.

Question 2

Functions of epithelium

Answer 2

Protection, absorption, secretion, excretion, filtration, and diffusion are all functions of epithelium.

Question 3

Basement Membrane

Answer 3

composed of carbohydrates and proteins which are secreted by the epithelial cells and connective tissue cells

Question 4

Epitheliod Tissue

Answer 4

If a tissue is composed of tightly packed epithelial-like cells, but it does not have a free surface.

Question 5

Example of epithelium tissue

Answer 5

parenchyma of the adrenal gland

Question 6

Simple gland

Answer 6

unbranched duct

Question 7

Compound duct

Answer 7

branched duct

Question 8

Tubular gland

Answer 8

The secretory portion of a gland is shaped like a tube

Question 9

Alveolar /Acinar

Answer 9

Secretory portion of a gland is shaped like a flask

Question 10

Cilia

Answer 10

hair like surface modification seen on some epithelia. Cilia are made of microtubules

Question 11

Stereocilia

Answer 11

Very long microvilli. Stereocilia are seen in the epididymis and the hair cells of the ear.

Question 12

Microvilli

Answer 12

finger like projections seen on the surface of some cells. Microvilli form the brush border (striated border).

Question 13

Keratinization

Answer 13

-seen in the epidermis

Question 14

Transitional Epithelium

Answer 14

• domed shaped cells on the apical surface

- can be distended or stretched

Question 15

Examples of transitional epithelium

Answer 15

Bladder and urinary tract

Question 16

Examples of pseudostratifed columnar epithelium

Answer 16

-lines the trachea and respiratory tract as well as some male reproductive tract

Question 17

Pseudostratified columnar epithelium

Answer 17

single layer of cells which looks like it is stratified.

Question 18

Pseudostratified squamous epithelium is

Answer 18

only one cell layer thick, yet it appears to be stratified.Every cell touches the basement membrane.

Question 19

stratified squamous

Answer 19

• more than one cell layer thick

- surface cells are flat

Question 20

Examples of stratified squamous

Answer 20

• The epidermis of the skin is stratified squamous epithelium.
• The lining of the esophagus is stratified squamous epithelium.
• The cornea is covered by a non-keratinized stratified squamous epithelium.

Question 21

Simple columnar epithelium

Answer 21

• The height of the cell is greater than the width and depth of the cell.
• one cell thick
• taller than they are wide
• oval nucleus

Question 22

examples of simple columnar epithelium

Answer 22

Lining of the GI

Question 23

Goblet cells

Answer 23

associated with simple columnar epithelium

Question 24

Mucosa of the gall bladder

Answer 24

simple columnar epithelium

Question 25

Simple Cuboidal Epithelium

Answer 25

• Tall as they are deep and wide

- cuboidal in shape

Question 26

Examples of Simple Cuboidal Epithelium

Answer 26

• linning of ducts

- kidney tubules

Question 27

Endothelium

Answer 27

A type of simple squamous epithelium which lines blood vessels

Question 28

Mesothelium

Answer 28

A type of simple squamous epithelium which lines the body cavities.

Question 29

Simple squamous

Answer 29

• a single layer thick

- cells are flat