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

Ecology, (i) On Figure, draw a ring around the number which indicates the e...

(i) On Figure, draw a ring around the number which indicates the energy entering the system via photosynthesis. (ii) The total energy available to the plants in the ecosystem

Is the esophagus a muscular organ, Is the esophagus a muscular organ? Why e...

Is the esophagus a muscular organ? Why even in a patient lying totally flat on a hospital bed can the swallowed food reach the stomach? The esophagus is a predominantly muscula

Classification based on digestive fate of carbohydrates, Explain Classifica...

Explain Classification Based on Digestive Fate of Carbohydrates? The digestive fate of carbohydrates depends on their inherent chemical nature (monosaccharide composition and t

Why do cells of the nephron tubules present, Why do cells of the nephron tu...

Why do cells of the nephron tubules present a great amount of mitochondria? The cells of the tubule wall have high number of mitochondria because lots of substances are resorbe

Fertilisation, Explain how the uterus supports the development of a baby du...

Explain how the uterus supports the development of a baby during gestation

Neurochemistry of attention, Neurochemistry of Attention Different neur...

Neurochemistry of Attention Different neurotransmitters systems are implicated in attention. Cholinergic, dopaminergic and serotonergic systems play major roles in neurochemica

Adverse effects of noise pollution, 1.      Effect on general health:  ...

1.      Effect on general health:          Noise pollution increases the rate of heart beat, constriction of blood vessels and blood pressure. Noise also causes anxiety, stres

What proportion of progeny pairs gt or ac have, A haploid cross is made in ...

A haploid cross is made in which the mutant allele has GC at base position 200 in the DNA of a certain gene, and the wild type has AT. What proportion of progeny will have the hybr

Haccp control measure, HACCP Control Measure HACCP Control Measure : ...

HACCP Control Measure HACCP Control Measure :  Any action or activity that can be used to prevent, eliminate or reduce a significant hazard.

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