Question

Describe the working of human heart.

Answer 1

Here is your answer mate..

The working of human heart - The blood flow through our heart and lungs in 4 steps..

The right atrium receives oxygen poor blood from the body and pumps it to the right ventricle through the tricuspid valve . The left ventricle pumps the oxygen rich blood through the aortic valve out to the rest of the body. and also The pumping of blood is controlled by special fibres that conduct electrical signals to the various chambers . Blood enters the heart through two large veins called the inferior and superior vena cava .

Hope it will help you.

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Answer 2

$\huge\mathfrak{\red{Heya\:Mate}}$

$\large\textbf{\underline{HERE\:IS\:YOUR\:ANSWER}}$

The heart is a muscular organ. It has different chambers to prevent the mixing of Oxygenated and De-oxygenated blood. The blood containing carbon dioxide has to reach the lungs to remove carbon dioxide and the oxygenated blood from the lungs has to brought back to the heart and then pumped to the rest of the body.

$\underline{Different\: parts\: of\: heart\:are:-}$

⏩ Left Atrium

⏩ Left Ventricle.

⏩ Right Atrium.

⏩ Right Ventricle.

⏩ Pulmonary arteries.

⏩ Pulmonary veins.

⏩ Upper Vena Cava.

⏩ Lower Vena Cava.

⏩ Septum.

⏩ Aorta.

$\huge\mathfrak{Working \:of \:heart}$

⭕️ Oxygenated blood from the lungs comes to the thin walled upper chamber of the heart on the left, the left atrium.

⭕️ The left atrium relaxed when it is collecting this blood. It then contrast, while the next chamber, the left ventricle, expands, so that the blood is transferred to it.

⭕️ When the muscular left ventricle contracts in its turn, the blood is pumped out to the body.

✔️ De-oxygenated blood comes from the body to the upper chamber on the right, the right atrium, as it expands.

✔️ As the right atrium contracts, the ventricle collects the blood.

✔️ Then this blood it pumped into the lungs for oxygenation.

✔️ Then it is brought back to heart and then pumped to the rest of the body.

$\large\textbf{HOPE\:IT\:HELPS\:YOU!!}$