Title: Blood Flow Through the Heart.
Institution: Shepherd Institute Blossom
Introduction
Welcome to Shepherd Institute Blossom.
In this lesson, we will explain the flow of blood through the human heart in a simple and clear way.
Step 1: Entry of Deoxygenated Blood
Blood that has delivered oxygen to the body returns to the heart as deoxygenated blood.
It enters through two major veins:
The superior vena cava (from the upper body)
The inferior vena cava (from the lower body)
Both vessels carry blood into the right atrium.
Step 2: Movement to the Right Ventricle
From the right atrium, blood flows through the tricuspid valve into the right ventricle.
Step 3: Blood Travels to the Lungs
The right ventricle pumps the blood through the pulmonary artery to the lungs.
In the lungs, carbon dioxide is removed and oxygen is absorbed.
Step 4: Return of Oxygenated Blood
Oxygen-rich blood returns to the heart through the pulmonary veins and enters the left atrium.
Step 5: Movement to the Left Ventricle
Blood flows from the left atrium through the mitral (bicuspid) valve into the left ventricle.
Step 6: Distribution to the Body
The left ventricle pumps oxygenated blood through the aorta to the entire body.
Conclusion
The flow of blood follows this cycle:
Body → Right Atrium → Right Ventricle → Lungs → Left Atrium → Left Ventricle → Body
Understanding this process is essential for all healthcare professionals.
Got it—that's a solid overview of blood flow through the heart. Deoxygenated blood hits the right atrium from the vena cava, drops to the right ventricle via tricuspid valve, pumps to lungs through pulmonary artery, then oxygenated blood returns to left atrium via pulmonary veins, through mitral valve to left ventricle, and out the aorta. Anything specific tripping you up, like the valves or the cycle?
Shared by Clement Onyedikachi