How does the heart impel the blood, Biology

Assignment Help:

Q. How does the heart impel the blood?

The heart is a muscular organ that contains chambers right ventricle and right atrium right ventricle and and left atrium through which blood passes. The blood enters the heart in the atria, goes to the ventricles and then leaves the organ, the blood is pumped out of the heart by the contraction of the muscle fibers that form the ventricular walls the contraction reduces the ventricle volume thus increasing the internal pressure and the blood then flows to the exit vessels pulmonary artery for the right ventricle and aorta for the left ventricle, When ventricular muscle fibers distend the ventricles regain their original size and receive new blood flow coming from the atria.


Related Discussions:- How does the heart impel the blood

Define changes in tract minerals - nutrition during stress, Define Changes ...

Define Changes in Tract Minerals - Nutrition during Stress? Changes in the balance of magnesium, phosphate, zinc and potassium follows alterations in nitrogen balance. Iron and

Elaborate angiography, Which term is used to describe the process whereby a...

Which term is used to describe the process whereby a catheter is inserted into an individual's heart, a radio-opaque medium is injected & x-ray images are made. Procedure is use

Define the term archenteron, Define the term Archenteron ? The name give...

Define the term Archenteron ? The name given to the primitive gut, the first tube that runs through the developing embryo and is open to the external environment. Formed during

Mycoplasmosis, Contagious bovine pleuropneumonia (CBPP) This is a highl...

Contagious bovine pleuropneumonia (CBPP) This is a highly fatal disease of cattle and of major economic importance in certain tropical countries. It also affects buffaloes, bis

Explain the air samplers - air sampling, Explain the Air Samplers - Air Sam...

Explain the Air Samplers - Air Sampling? Air Samplers, e.g., all glass impinger and the Andersen sieve samplers may be used. Volume of the air sampled is known. In all glass im

In which bones can bone marrow chiefly be found, In which bones can bone ma...

In which bones can bone marrow chiefly be found? Is the bone marrow made of osseous tissue? Bone marrow can mostly be found in the internal cavities of flat bones, as the verte

Assessment of ventricular septal defect, Assessment   On assessment a c...

Assessment   On assessment a child with ventricular septal defect will show clinical manifestations depending upon the size of  the defect. The small defects are usually asympt

What are other organs and tissues made from that germ layer, From which ger...

From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer? Epidermis and nervous system have the simi

What are three main components of cytoskeletan, What is the cytoskeleton, a...

What is the cytoskeleton, and what are three of its main components? The cytoskeleton is a network of long protein strands located in the cytosol. Three main components are

Identical twins, Identical Twins Human twins may be similar, when they...

Identical Twins Human twins may be similar, when they are formed from one egg (monozygotic) or fraternal while they are the result of fertilization of two different ova releas

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