Epithelial Tissues

Question 1

Define Epithelial Tissues

Answer 1

• covers or lines surfaces and makes up glands

Question 2

Epi Tissues Characteristics

Answer 2

Little to no extracellular matrix
Apical/Basal/Lateral surfaces
basement Membrane
Avascular
Lumen

Question 3

What does apical surface mean?

Answer 3

top surface exposed

Question 4

What does basal surface mean?

Answer 4

bottom/base s

Question 5

What does lateral surface mean?

Answer 5

side surfaces
usually connected to other cells by intercellular junctions

Question 6

Define Lumen

Answer 6

Space within hollow organs

Question 7

Functions of Epithelial Tissues

Answer 7

Protection
Selectively Permeable
Secretion
Absorption
Filtration
Sensation

Question 8

Define the Epi Functions: Protection

Answer 8

protects surfaces from abrasion, dehydration and damage

Question 9

Define the Epi Functions: Selectively Permeable

Answer 9

regulate materials passing through surfaces
Allows certain things to pass through; selectively.

Question 10

Define the Epi Functions: Secretion

Answer 10

some epithelial tissues are specialized to produce secretion
- cell to surface

Question 11

Define the Epi Functions: Absorption

Answer 11

bringing in small molecules into cells
- Outside of the cell to the inside of the cell

Question 12

Define the Epi Functions: Filtration

Answer 12

moving small molecules through sieve-like membranes

Question 13

Define the Epi Functions: Sensation

Answer 13

epithelial tissues contain nerve endings to detect stimuli from the environment.