Histology Lecture 1

Question 1

What are the 4 main types of tissue?

Answer 1

Epithelium
connective tissue
nervous
muscular

Question 2

What are the main types of epithelium?

Answer 2

Simple
pseudostradified columnar
stratified

Question 3

three types of simple epithelium?

Answer 3

squamous - egg
cuboidal
columnar

Question 4

type of stratified epithelium?

Answer 4

squamous

Question 5

What are the two odd epitheliums?

Answer 5

• pseudostratified ciliated columnar

- transitional

Question 6

Where is simple squamous found?

Answer 6

• covers external surfaces of organs
• digestive
• lungs
• heart.

Question 7

Simple cuboidal?

Answer 7

lines small excretory ducts

proximal convoluted tubule

Question 8

What is the feature of the apical surface of simple cuboidal epithelium?

Answer 8

brush border of microvilli

Question 9

simple columnar epithelium?

Answer 9

digestive organs
stomach
instesines
gallbladder

Question 10

Where do the simple columnar epithilum have villi?

Answer 10

small intestine, they have villi and microvilli

Question 11

Pseudostratified columnar epithelium?

Answer 11

• lines respiratory passages
• epididymis
• vas deferens

Question 12

what is the special feature of pseudostratified epithelium?

Answer 12

Mobile cilia in respiratory passages

- stereocilia - non motile in epididymis/vas deferens

Question 13

Stratified squamous? two types

Answer 13

keratinized

non keratinized

Question 14

Where is non keratinized found?

Answer 14

moist cavities:

• mouth
• vagina
• anal canal
• pharynx

Question 15

Are the surface cells of non keratinized stratified squamous alive?

Answer 15

yes

Question 16

Keratinized epithelium is where? LIving?

Answer 16

lines external surfaces of the body, the surface cells are not living.

Question 17

Stratified cuboidal and stratified columnar?

Answer 17

Line the LARGER excretory ducts:

• pancreas
• salivary glands
• sweat glands

Question 18

Transitional epithelium?

Answer 18

urinary system:

• calyces
• pelvis
• ureter
• bladder

Question 19

name of blood vessel epithelium?

Answer 19

endothelium - endo, on the inside lining

Question 20

what type of cells would line the stomach?

Answer 20

simple columnar

Question 21

Where could simple columnar epi with microvilli be found?

Answer 21

Small intestine - jejunum

Question 22

if looking at skin slide, what would indicate keratinized?

Answer 22

The lack of nuclei in the outermost surface areas.

Question 23

What is an un-natural element in a slide specimen called?

Answer 23

artifacts

Question 24

What two categories are epithelium segregated into?

Answer 24

membrane
glandular
they can overlap

Question 25

What Is meant by membrane epithelium?

Answer 25

lining or covering found in the body

Question 26

What junctions tightly hold stratified squamous cells together?

Answer 26

desmosomes

Question 27

What is keratinized?

Answer 27

epithelium with layer of dead skin cells on top

Question 28

What type of cell is often found with PSCC?

Answer 28

Goblet cells

Question 29

What do goblet cells do?

Answer 29

secrete mucus