Mammalian heart, Biology

Assignment Help:

Mammalian Heart

The division of heart and separation of systemic and pulmonary circulation is complete in birds and mammals. The structure of mammalian heart and also how the volume of fluid pumped by the heart is adjusted according to the oxygen needs of the body.

774_Mammalian Heart.png

                                                                Figure: Mammalian Heart

The mammalian heart is a muscular organ covered by a tough fibrous sheath the pericardium. It consists of four chambers. Each half consists of a thin walled atrium and a thick walled ventricle. There are two sets of valves. Atrioventricular valve separates the cavities of the atrium and ventricle and prevents backflow of blood. Semilunar valves are present where the pulmonary artery leaves the right ventricle and the aorta leaves the left ventricle, preventing backflow. The contraction of heart is called systole and the relaxation, diastole. A heartbeat consists of a rhythmic contraction and relaxation of the whole muscle mass. The heart rests only during the short interval between contractions.


Related Discussions:- Mammalian heart

Oxidative phosphorylation, Oxidative phosphorylation Oxidative phosphor...

Oxidative phosphorylation Oxidative phosphorylation is a metabolic pathway which uses energy released through the oxidation of nutrients to generate adenosine triphosphate (ATP

What is transportation of sick newborn infants-heart disease, What is Trans...

What is Transportation of Sick Newborn Infants with Heart Disease Communication : The decision to transport a newborn to a tertiay referral centre with facilities for specia

Geology LAB, Can you guys help with my homework assignment for Geology?

Can you guys help with my homework assignment for Geology?

Determine the nutritional and functional role of minerals, Minerals :-Copp...

Minerals :-Copper Food Source      Organ meats, sea foods, nuts, seeds Nutritional Functional role Essential nutrient: Deficiency is rare. Catalyst: Lipid perox

Contractile vacuoles of amoeba, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Sludge treatment process and disposal, Sludge treatment and disposal: most...

Sludge treatment and disposal: most of the suspended solids and some of the dissolved organic solids, in a converted form, are separated from the main flow of the, in the form of

Sex-limited traits, can u show the different activities on the topic

can u show the different activities on the topic

Explain the urinary excretion of ascorbic acid, Explain the Urinary excreti...

Explain the Urinary excretion of Ascorbic Acid? The urinary excretion of ascorbic acid falls when the dietary intake is low. Since the tissues are not saturated, a greater part

Explain culture characteristics of molds, Q. Explain Culture Characteristic...

Q. Explain Culture Characteristics of Molds? The gross appearance of a mold growing on a food often is sufficient to indicate its class or order. Some molds are loose and fluff

Determine about the manganese, Determine about the Manganese   Manganes...

Determine about the Manganese   Manganese performs some functions in photosynthesis and acts to regulate the intake of certain elements and their oxidation states.   Several cr

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