Epithelial tissue, Biology

Assignment Help:

EPITHELIAL TISSUE OR EPITHELIA

Epithelium term coined by Ruysh, it was applied originally to thin skin covering the nipple. (G.epi = upon, thele = nipple)

Epithelial tissues evolved first and are also formed first in the embryo.

  • Epidermis of the skin from the ectoderm.
  • Coelomic epithelium from the mesoderm.
  • Epithelial lining of alimentary canal (= gut) from the endoderm.

Epithelial cells rest upon nonecellular Basal lamina or Basement membrane, but in transitional epithelium, basal lamina is absent.

Blood vessels and lymph vessels are absent in epithelial tissues.

The epithelial tissues have a good power of repair (regeneration) after injury.

CLASSIFICATION OF EPITHELIAL TISSUE -

807_epethelial tissue classification.png


Related Discussions:- Epithelial tissue

Explain the bulimia nervosa, Explain the Bulimia Nervosa? Diagnostic Cr...

Explain the Bulimia Nervosa? Diagnostic Criteria Bulimia Nervosa patients, unlike those of anorexia nervosa with binge and purge subtype, are typically within the normal weight

Explain about modifiable risk factors, Q. Explain about Modifiable Risk Fac...

Q. Explain about Modifiable Risk Factors? 1. Behavioural Smoking Sedentary Lifestyle Habits Dietary Errors 2. Physiological Hyperlipidemia Hypertension Obe

How is the circulatory system of reptiles characterized, How is the circula...

How is the circulatory system of reptiles characterized? What is the basic difference among the reptile and the amphibian heart? The circulatory system of beings of the class R

Cell wall, CELL WALL Discovered by Robert Hooke , 1665 when he saw ...

CELL WALL Discovered by Robert Hooke , 1665 when he saw dead empty cork cells. Bonne r - studied the chemical nature of cell wall. The cell wall is a rigid & prote

Explain various types of microorganisms, Q. Various types of microorganisms...

Q. Various types of microorganisms? Microbes are single-cell organisms so tiny that millions can fit into the eye of a needle. They are the oldest form of life on earth. Micro

Explain greenhouse gases, The two gases making highest relative contributio...

The two gases making highest relative contribution to the greenhouse gases are: 1. CO2 and CH4 2. CH4 and N2O 3. CFC55 and N2O 4. CO2 and N2O CO2 and CH4

What happens to the tsh blood level in hypothyroidism, What happens to the ...

What happens to the TSH (thyroid-stimulating hormone) blood level in hypothyroidism? Why is there enlargement of the thyroid in the endemic goiter disease? When there is low T3

How is the nervous system characterized, Q. How is the nervous system chara...

Q. How is the nervous system characterized in beings of the phylum Annelida? How can one compare cephalization in annelids to cephalization in platyhelminthes and nematodes? An

Stored metabolites - seed and fruit, Stored Metabolites - Seed and Fruit ...

Stored Metabolites - Seed and Fruit In a large majority of seeds food is stored in the cells of the endosperm. In coconut, wheat and castor bean for example, it is the endospe

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd