EPITHELIUM

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EPITHELIUM by Mind Map: EPITHELIUM

1. coverd ,line,form gland

1.1. General Features of Epithelial tissues

1.1.1. They adhere to one another by mean of junctions.

1.1.2. It is separated from the underlying connective tissue by the basement membrane.

1.1.3. They exhibit functionally distinct surfaces which are apical, lateral and basal

1.1.4. it is avascular (does not have blood vessels) receiving its nourishment by diffusion.

1.1.5. It has a remarkable capability of renewal and regeneration.

2. surface ep

2.1. simple ep

2.1.1. simple squmous ep

2.1.2. simple cuboidal ep

2.1.3. simple columnar ep

2.1.4. pseudostratified columnar ep

2.2. stratified ep

2.2.1. stratiified squmous ep

2.2.1.1. non-keratinized

2.2.1.2. kertinized

2.2.2. stratified transitional ep

2.2.3. stratified cuboidal ep

2.2.4. stratified columnar ep

3. glandular ep

3.1. exocrine glands

3.1.1. no.of cell

3.1.1.1. unicellular

3.1.1.2. multicellular

3.1.2. mechanism of secretion

3.1.2.1. merocrine

3.1.2.2. apocrine

3.1.2.3. holocrine

3.1.3. type of secretion

3.1.3.1. mucous

3.1.3.2. serous

3.1.3.3. mixed or mucoserous

3.1.3.4. watery secrtion

3.1.3.5. waxy secretion

3.2. endocrine glands

3.2.1. secrete into blood

3.3. mixed glands

3.3.1. possess both function

4. neroepithelium

5. epthelium adhere each other by junction | (junction complex)

5.1. tight j (occludens)

5.2. adhereing J

5.3. desmosomes & hemidesmosoes (Macula adherens):

5.4. communicating J (gap)