A&P - Chapter 9 (Part 2)

Question 1

What are the different types of epithelium? (5)

Answer 1

1. Simple squamous epithelium
2. Stratified squamous epithelium
3. Simple columnar epithelium
4. Stratified transitional epithelium
5. Pseudostratified epithelium

Question 2

How many layers are there in simple squamous epithelium?

Answer 2

1

- flat scaled shaped cells

Question 3

What is simple squamous epithelium good for? (3)

Answer 3

1. Transport
2. Diffusion
3. Absorption

Question 4

Is simple squamous epithelium permeable?

Answer 4

Yes

- to many structures

Question 5

Where is simple squamous epithelium located? (4)

Answer 5

1. Alveoli of the lungs
2. Lining of blood
3. Lining of lymphatic vessels
4. Skin

Question 6

How many layers are there in simple cuboidal epithelium?

Answer 6

1

Question 7

What does simple cuboidal epithelium specialize in?

Answer 7

Secretory activity

Question 8

What are simple cuboidal epithelium usually grouped into? (2)

Answer 8

1. Tubules

2. Clusters/glands

Question 9

What 2 things can glands be?

Answer 9

1. Endocrine
   - ductless
2. Exocrine
   - ducts

Question 10

What do tubules of the kidney produce?

Answer 10

Urine

Question 11

How many layers do simple columnar epithelium have?

Answer 11

1

- tall, narrow, column shaped

Question 12

What do the simple columnar epithelium compose? (4)

Answer 12

Surfaces of the …

1. Mucous membranes that line the stomach
2. Intestines
3. Parts of the respiratory system
4. Parts of the reproductive system

Question 13

What do simple columnar epithelium contain?

Answer 13

Mucous

Question 14

What does the mucous from the simple columnar epithelium produce?

Answer 14

Goblet cells

Question 15

What is the simple columnar epithelium specialized for?

Answer 15

Absorption

Question 16

What is an example of a structure that is specialized for absorption for simple columnar epithelium?

Answer 16

Microvilli

Question 17

What does pseudostratified columnar epithelium look like?

Answer 17

Columnar cells of varying heights

- all touching the basement membrane

Question 18

What does the pseudostratified columnar epithelium line? (2)

Answer 18

1. Respiratory tract

2. Parts of the reproductive system

Question 19

How does stratified squamous epithelium look?

Answer 19

Several layers closely packed

Question 20

What is the primary function of stratified squamous epithelium?

Answer 20

Protection

Question 21

What does the stratified squamous epithelium protect?

Answer 21

Prevents microbes from getting through the skin or mucus membranes

Question 22

Can stratified squamous epithelium be keratinized?

Answer 22

Yes

• depending on the location
• eg) skin vs mouth/esophagus/vagina

Question 23

Where do you mainly see stratified squamous epithelium?

Answer 23

In the skin

Question 24

What layers of the stratified squamous epithelium are attached to the basement membrane?

Answer 24

Just the first layer

- the rest are layered on top

Question 25

What does stratified cuboidal epithelium look like?

Answer 25

Two or more rows of cuboidal cells, arranged randomly over a basement membrane

Question 26

What is the function of the stratified cuboidal epithelium?

Answer 26

Protection

Question 27

Where is the stratified cuboidal epithelium located? (3)

Answer 27

1. Sweat glands 2. Pharynx 3. Epiglottis

Question 28

How many layers does the stratified columnar epithelium have?

Answer 28

Multiple

Question 29

What do the cells look like in stratified columnar epithelium?

Answer 29

Columns | - but only the most superficial cells are typically in shape

Question 30

What is the function of the stratified columnar epithelium?

Answer 30

Protection

Question 31

Out of all the tissues, which one is the most rare?

Answer 31

Stratified columnar epithelium

Question 32

Where is the stratified columnar epithelium located? (2)

Answer 32

1. Male urethra | 2. Near the anus

Question 33

Why isnt stratified columnar epithelium in female urethras?

Answer 33

They need to be able to stretch in males | - change directions

Question 34

How many layers are there in stratified transitional epithelium?

Answer 34

Up to 10 layers

Question 35

What is the shape of stratified transitional epithelium?

Answer 35

Roughly cuboidal-shaped cells that distort to squamous shape when stretched

Question 36

What is the function of stratified transitional epithelium?

Answer 36

Protection

Question 37

Where is stratified transitional epithelium located?

Answer 37

Found in body areas subject to stress and that stretch | - eg) urinary bladder