L2

Question 1

name all the 4 tissues with there specific function?

Answer 1

1. ET = covering, lining, diffusion, secretion and absorption
2. CT = support and linkage
3. MT = locomotion and movement
4. NT= control and coordination

Question 2

epithilial tissue rest upon which tissue?

Answer 2

connective tissue

Question 3

characteristics of ET?

Answer 3

1. cells are compactly packed with little intercellular matrix
2. AVASCULAR
3. high regeneration
4. it has nerve supply

Question 4

if ET is AVASCULAR, then how does it gets nutrition and blood supplies?

Answer 4

the Oxygen and nutrient from the blood in CT diffuses to epithilium via basement membrane

Question 5

the basement membrane is made of?

Answer 5

glycoprotein + mucopolysaccharide + protein fibres

Question 6

is basement membra cellular or non cellular?

Answer 6

non cellular

Question 7

basment memb is secreted by?

Answer 7

it is secreted by both ET and CT.

Question 8

the free surface of ET either faces the_____ or the ____

Answer 8

ext environ. or the body fluid

Question 9

ET is orgined from?

Answer 9

it has origin from all the 3 layers

1. ectoderm
2. meso
   3.endo

Question 10

epithilium of skin has origin from?

Answer 10

ectodermal

Question 11

epithilum of gut has origin from?

Answer 11

endodermal

Question 12

free surface can modify itself into how many types? also define them

Answer 12

1. MICROVILLI = finger like projection that are the folds of plasma membrane of epithilial cells, increases the surface area for secretion and absorption
2. CILIA = hair like projection that helps in movement of substances along one directional

Question 13

simple epithelium is classified on the basis of_______ modification

Answer 13

structural

Question 14

characteristics of simple squamous epithelium

Answer 14

1. cells are FLAT
2. Nucleus is flat, and located in centre
3. cells are irregular in boundaries.
4. they also k/a pavement epi