Tissues and Introduction to Metabolism-Lecture 3 Exam 1

Question 1

4 Major Tissue Types

Answer 1

Epithelial, Connective, Muscle, & Neural/Nervous

Question 2

Cell Junctions

Answer 2

Structures that provide contact or adhesion between neighboring cells

Question 3

Gap Junctions

Answer 3

-Allow rapid, cell-to-cell communication
-Allow for chemical and electrical signals to pass from one cell to another

Question 4

Tight Junctions

Answer 4

Create a barrier to restrict the movement of material between cells

Question 5

Anchoring Junctions (desmosomes)

Answer 5

Create tissue strength by attaching cells to each other or to the matrix

Question 6

Describe the general features of epithelial tissue and give a few examples of where epithelial
tissue is found in the body

Answer 6

*Regulates the exchange between the internal and external environment
* Provides protection by covering exposed surfaces and lining cavities
* Replicates often
* Avascular: no blood vessels
* Forms glands
-Found in digestive tract, respiratory tract, urinary tract, kidneys, lungs, intestines, etc.