Physiology of the heart, Biology

Assignment Help:

The heart is the muscular pump that pushes blood through the circulatory system. Each heartbeat can be felt as an arterial pulse. The heart valves when closed prevent the blood from leaking back into the heart. Understanding the cardiac cycle in reference to the opening and closing of the heart valves and genesis of the heart sounds is central to appreciating changes in valvular heart disease. The cardiac output is the volume of blood pumped out of the heart during each beat and is expressed as litres/minute. The pressure in the arteries, arterioles and veins is maintained by the vascular tone. This tone is adjusted through autonomic impulses from the vasomotor centre in the medulla. The centre is influenced by afferent impulses from many areas like the carotid body, aortic arch and chemoreceptors


Related Discussions:- Physiology of the heart

The fact that propanol is much heavier, Propane boils at -46oC. Propanol bo...

Propane boils at -46oC. Propanol boils at 97oC. The difference is attributable to- Select one: a. The fact that propanol is much heavier b. The fact that propanol ionizes all

Target organ damage, Central Nervous System   Hypertension is one of th...

Central Nervous System   Hypertension is one of the leading causes of cerebrovascular disease. It has been associated with accelerated age related cognitive decline. The most d

Explain theory of enzyme action, Explain Theory of enzyme action L. Mic...

Explain Theory of enzyme action L. Michaelis  and k L. Menten developed a general  theory of enzyme action and kinetics  in  1913. According to this theory, we learnt  that

How are poriferans characterized, Concerning digestion how are poriferans c...

Concerning digestion how are poriferans characterized? Sponges are dissimilar from other animals since they present only intracellular digestion. They do not have a digestiv

Enhance the expression of the sefp testing, Baculovirus is widely used for ...

Baculovirus is widely used for expressing recombinant proteins. Structural of baculovirus is a rod-shaped nucleocapsid containing genomic DNA. The baculovirus Autographa California

Will there be an opportunity to comment, Will there be an opportunity to co...

Will there be an opportunity to comment?  In a supplemental notice accompanying the last rule package, EPA is soliciting additional information and public comment on issues fro

What is an antigen, What is an antigen? Antigen is any substance, parti...

What is an antigen? Antigen is any substance, particle or infectious agent known as foreign to the body. The contact of the antigen with the body promotes a defense reaction ag

Explain femoral approach, Q. Explain Femoral Approach? This approach in...

Q. Explain Femoral Approach? This approach involves the insertion of a catheter over a guidewire i.e. inserted into a sheath in the right femoral artery. Systemic anticoagulati

Explain procedure for the use of light microscope, Explain Procedure for th...

Explain Procedure for the use of Light Microscope? Now carry out the exercise following the steps enumerated herewith. 1. Place the microscopic slide with any specimen on th

Classification of science, Classification: There were many similariti...

Classification: There were many similarities between things or phenomena which led to their classification. The first classifications were in terms of beings (the living), th

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