Venous return, Biology

Assignment Help:

This is the amount of blood that is returned to the heart by the veins. This is influenced by various factors. Inspiration decreases the pressure in the  central veins and thus increases the pressure gradient between the peripheral and central veins thus augmenting venous return. Skeletal muscle contraction also milks the venous flow towards  the heart and the valves in the veins prevent gravitational return backwards. Significant veno dilatation can occur with conditions like sepsis and the use of certain drugs like nitrates. This can result in a serious fall in venous return. This can result in marked deterioration in conditions  like right ventricular infarction and pericardial tamponade.


Related Discussions:- Venous return

Surrogacy, what is surrogate motherhood

what is surrogate motherhood

Genes and chromosomes, The gene is a distinct portion of a cell's DNA. Gene...

The gene is a distinct portion of a cell's DNA. Genes are coded instructions for making all the body needs, mainly proteins. Human beings have about 25,000 genes. Researchers have

Consciousness as inner state, Q. Explain Consciousness as inner state? ...

Q. Explain Consciousness as inner state? Consciousness as inner state: We are conscious of thoughts, images, emotions and memories within ourselves though they may not have phy

Ethological isolation, Members belonging to different species refrain from ...

Members belonging to different species refrain from mating because of the behavioural differences between them. Such behavioural differences usually centre around specific courtshi

Taxonomy, A In taxonomy, what is a "KEY" ? List the different types of key...

A In taxonomy, what is a "KEY" ? List the different types of keys. How are they prepared and what are they used for ?sk question #Minimum 100 words accepted#

Musculoskeletal system, MUSCULOSKELETAL SYSTEM: Disease of  the skin  ...

MUSCULOSKELETAL SYSTEM: Disease of  the skin  and musculoskeletal  system occur commonly  in  early age group. There are  not many  statistics  to prove the exact frequency of

Developmental biology, a sea urchin egg is injected with an mRNA encoding t...

a sea urchin egg is injected with an mRNA encoding the cadherin protein fragment described above and an mRNA encoding the Pmar1 transcription factor. The embryo is allowed to devel

Excretion, How will the urine concentration be affected if the henle''s loo...

How will the urine concentration be affected if the henle''s loop of a person is removed and his PCT is joined directly with DCT?

Animal Respiration, What type of respiration does earthworm has ? In many c...

What type of respiration does earthworm has ? In many complex animals, the cells of internal organs are distant from the outside environment; respiratory systems provide the passag

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