Is the epithelium vascularized, Biology

Assignment Help:

Q. Is the epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this feature an important evolutionary acquisition?

Epithelia are not vascularized capillaries don't directly reach their cells the epithelium exchanges substances by diffusion with the connective tissue situated under it.

Since the epithelia are not vascularized minuscule scratches or skin injuries that happen all the time do not trigger bleeding and do not expose the blood to contamination from external agents this is an important protective strategy discovered by evolution.


Related Discussions:- Is the epithelium vascularized

Illustrate thallium scintigraphy, Q. Illustrate Thallium Scintigraphy? ...

Q. Illustrate Thallium Scintigraphy? It is often done with SPECT (single photon emission computed tomography) which further increases the sensitivity. However, a stress test w

Find cellular machinery for the replication of nucleic acids, Which of the ...

Which of the following statements is true? Answer Viruses are distinct from cells by the absence of a lipid membrane around them. Viruses are parasites that require the cell's meta

Describe population and the frequency of the melanics, In one study of a he...

In one study of a heavily polluted area near Birmingham, England, a researcher observed a frequency of 87% melanic Biston betlularia. Calculate the frequency of the dominant allele

Explain in brief about polymers, Explain in brief about Polymers In com...

Explain in brief about Polymers In comparison to metals and ceramics, polymers are weak and flexible. These are not popular as dental implant materials. Examples of polymeric m

What is forebrain, Q. What is Forebrain? Forebrain: Found in the area o...

Q. What is Forebrain? Forebrain: Found in the area of the forehead, this part of the brain is concerned with all the emotions, planning, organising, reasoning, memory, movement

Obelia, why is it consideredto have an intermideate grade oforganisation

why is it consideredto have an intermideate grade oforganisation

What are catalysts, Catalysts are substances that decrease the activation e...

Catalysts are substances that decrease the activation energy of a chemical reaction, facilitating it or making it energetically viable. The catalyst enhances the speed of the chemi

Explain the filtration - air sampling, Explain the Filtration - Air Samplin...

Explain the Filtration - Air Sampling? Filtration - Air stream may also be filtered through a micro-filter.  Microorganisms are released from the filter using a suitable diluen

Photomicrograhs, interpretation of liver photomicrograh slides

interpretation of liver photomicrograh slides

Consequence of over population, CONSEQUENC E OF OVER POPULATION - With...

CONSEQUENC E OF OVER POPULATION - With increase in population the available natural resources will fall short of requirements. A severe competition will ensure creating soc

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