Chapter 4 Epithelial Tissues

Question 1

Characteristics of epithelial tissues

Answer 1

1. Closely packed cells
2. Basal( bottom) surface sits on glycoproteins gel
3. desmosome junctions snap the cells together tight junction are like zip lock bags that prevent fluid from going between cells
4. Avascular. Diffusion allows cells to their nutrition
5. ET always sits on another tissue (or are superficial)

Question 2

All cells are surround by what?

This keeps them alive

Answer 2

Salt watery fluid

Question 3

Skin cells don’t have what ( invaginations or hair like structure)

Answer 3

Microvilli or cilia

Microvilli is in the intestines and cilia in the lobbing of the trachea

Question 4

Where are epithelial tissues found?

Answer 4

The can cover hollow organs like the intestine or the can line the inside of hollow organs

They cover the body

Some form sweat glands and oil glands or other glands to release sweat milk or hormones

Question 5

Simple means what

Answer 5

One layer of epithelial tissue

Question 6

Stratified means?

Answer 6

Multiple layers of of cells that form the tissue

The apical is the top layer and basal is the bottom

Question 7

Squamous

Answer 7

Shaped like a coin. Wider than it is longer and looks squashed

Question 8

Cuboidal cells

Answer 8

Not exactly a cube but more or less

Question 9

Columnar

Answer 9

More tall than wide

Question 10

Transitional cells

Answer 10

Don’t fit into one category