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Describe the structure and function of the mammalian heart

      

Describe the structure and function of the mammalian heart

  

Answers


Isacko
the heart is a four-chambered hollow muscle located in the thoracic cavity

it consists of two small receiving chambers, the atria(auricles) and two larger pumping chambers, the auricles

the left ventricles is the most powerful and has the thickest walls

this is because it is the chamber which pumps blood throughout the body

each time it contracts, blood is forced out into the elastic arteries(aorta)

blood moves on to the capillaries

from capillaries blood moves to veins and back to the heart through the vena cava

from vena cava it enters into right auricle which contracts and pumps blood into the right ventricle

right ventricle pumps blood into the lungs through the pulmonary artery

blood releases carbon IV oxide to lungs and picks oxygen then returns to left auricle

left auricle pumps blood into left ventricle

left ventricle then pumps blood into the aorta and into arteries, starting the process all over again

both auricles contract simultaneously while both
Mohaissack answered the question on October 4, 2017 at 14:14


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