Detailed Explanation of Blood Flow Through the Heart System

This assignment provides a detailed explanation of how blood flows through the heart, incorporating key anatomical terms such as the superior and inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary arteries, lungs, pulmonary veins, left atrium, mitral valve, left ventricle, aortic valve, ascending aorta, aortic arch, brachiocephalic artery, left common carotid artery, left subclavian artery, descending aorta, thoracic aorta, abdominal aorta, iliac arteries, arterioles, capillaries, venules, and veins. The flow begins with deoxygenated blood entering the right atrium via the superior and inferior vena cava, then passing through the tricuspid valve into the right ventricle, which pumps it through the pulmonary valve into the pulmonary arteries towards the lungs for oxygenation. Oxygenated blood returns to the left atrium via the pulmonary veins, passes through the mitral valve into the left ventricle, and is finally pumped through the aortic valve into the aorta for systemic circulation. Desklib offers more solved assignments and study resources for students.

Running head: RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
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1RESPIRATORY SYSETM
The blood flows through both areas of the heart i.e. right side of the heart and left side
of the heart and pump blood that will allow the blood to drift through the heart. The blood
arrives the right portion of the heart over two different large veins namely superior and
inferior vena cava, which empty the poor oxygenated blood in the right atrium. Atrial
contraction takes place when blood is conveyed from right atrium to right ventricle over
opening of tricuspid valve. The process of pulmonary circulation begins. When heart
rhythms, the ventricle pushes the blood into the pulmonic artery through pulmonic valve and
the blood travels to the lungs, resulting in ventricular contraction (Bessonov et al. 2016).
Pulmonary circulation is responsible for initiating external respiration whereas
systemic circulation is responsible for initiating internal respiration. In the process of
pulmonary loop, the deoxygenated blood empties the right ventricle and moves by using the
pulmonary trunk, which is used for splitting in the left and right pulmonary arteries. In the
left portion of the heart, pulmonary vein is accountable for emptying rich oxygenated blood
in the left atrium carried by the lungs, marking the initiation of systemic circulation. The
oxygenated blood flow to the left side of ventricle over open mitral valve and when the
ventricles are packed, mitral valve finishes that inhibits the blood from moving back to the
atria during ventricle contraction (Lewis 2019). The blood moves out of the heart over the
aortic valve and reaches the aorta through aortic arch and later to the complete physique
through descending aorta.

2RESPIRATORY SYSETM
References
Bessonov, N., Sequeira, A., Simakov, S., Vassilevskii, Y. and Volpert, V., 2016. Methods of
blood flow modelling. Mathematical modelling of natural phenomena, 11(1), pp.1-25.
Lewis, T., 2019. The Heart. Univ of California Press.