Epithelial Tissue of Squamous Epithelia

Question 1

Define Tissue:

Answer 1

Group of cells that work together as a unit to carry out a specialized function

Question 2

What are the 4 types of tissues:

Answer 2

Epithelial

Connective

Muscle

Nervous

Question 3

Where is Epithelial Tissue found?

Answer 3

Covers all body surfaces

Outside surgaces of organs

Inner linings of hollow organs

Lines walls of body cavities

Exterior surface of body

Question 4

What anchors the base of epithelium?

Answer 4

Anchored to connective tissue by the basal lamina (basement membrane)

Question 5

Epithelia are classified by 2 structural criteria:

Answer 5

The # of cell layers

The shape of the cells

Question 6

Describe SIMPLE Squamous epithelia:

Answer 6

Single layer of flattened cells

Inner linings of blood vessels (endothelium)
Lining of body cavities

Question 7

Describe STRATIFIED Squamous Epithelia:

Answer 7

Several layers of cells, top layer are flatted, lower layer are cube-shaped

Provide protection from friction

Inner lining of Esophagus
Inner lining of vaginal canal

Question 8

Describe STRATIFIED Squamous, Keratinized:

Answer 8

Several layers of cells, thick layer of dead cells at the surface filled with Keratin fibers (keratin layer)

Serves as a protective barrier against dehydration and infection from airborn germs

Epidermis of the skin