Tissues of the Body

Question 1

Where is epithelium tissue found?

Answer 1

On the body surface (skin), and the inside of organs

Question 2

How is epithelium arranged?

Answer 2

In continuous sheets or as single or multiple layers; held together by cells junctions

Question 3

What are the two types of filaments found inside the cell’s cytoskeleton?

Answer 3

Microfilaments and Intermediate filaments

Question 4

What are the different types of cell junctions?

Answer 4

Tight, adherent, gap, desmosome, basal, hemidesmosome

Question 5

What is the purpose of the microfilaments?

Answer 5

Structure and strength, beneath membrane

Question 6

What is the purpose of intermediate filaments?

Answer 6

Strength, and to move materials through cytoplasm`

Question 7

What is the purpose of a tight junction?

Answer 7

To keep cell polarity and seals the cell so nothing can get out. Appears high up in the cell

Question 8

What is the purpose of an adherent?

Answer 8

Prevents cell seperation from tension forces like in contractions. More basally located and has plaques of layer of proteins on the inside of the cell to join actin to adherin

Question 9

What is the purpose of the desmosome?

Answer 9

Links cell surface to keratin (intermediate filament) and binds muscle cells. Is a lateral wall.

Question 10

What is a gap junction?

Answer 10

A direct connection between cells. Allows small molecules through, and found mainly in the heart for coordinated communication

Question 11

What does the hemidesmosome do?

Answer 11

Anchors the bottom of the cell to the below cells.

Question 12

What is the basement membrane?

Answer 12

The exchange of wastes and nutrients diffuses from vessels in connective tissues. Composed of basal lamina and reticular lamina

Question 13

Where does covering epithelia cover?

Answer 13

Exposed surfaces, either inner or outer linings

Question 14

Where does glandular epithelia cover?

Answer 14

certain internal organs

Question 15

What are the three types of cell types?

Answer 15

Simple, stratified, pseudostratified

Question 16

What does squamous look like?

Answer 16

flat and thin

Question 17

What does cuboidal look like?

Answer 17

As tall as they are wide

Question 18

What does columnar look like?

Answer 18

More tall than wide

Question 19

What does transitional look like?

Answer 19

Changes shape from cuboidal to flat

Question 20

What is simple squamous epithelium used for?

Answer 20

Filtration

Question 21

What is simple cuboidal used for?

Answer 21

Secretion and absorption (cuboidal or hexagonal)

Question 22

What is simple columnar used for?

Answer 22

Protection

Question 23

What is stratified squamous used for?

Answer 23

Protection, and apical cells packed with keratin so the surface is strong.

Question 24

What is pseudostratified columnar used for?

Answer 24

Protection and transportation

Question 25

What does glandular epithelia do?

Answer 25

As a single cell group, or a group of cells, they secrete substances into ducts, onto a surface, or into blood.

Question 26

Where do endocrine glands secrete?

Answer 26

Into blood through interstitial fluid

Question 27

Where do exocrine glands secrete?

Answer 27

Into ducts that empty onto the surface of a covering or lining of epithelium (like sweat)

Question 28

What do connective tissues do?

Answer 28

Bind, support, and strengthen other body tissues. It also acts as a major transport system of the body, and of stored energy reserves

Question 29

Where are connective tissues found?

Answer 29

In the vascular system