Question

Long answer question-
Explain the working of human heart.

Answer 1

first,heart is covered with a protective layer called pericardium
2.pulmonary vein brings the oxygenated blood from lungs to the left auricle of the heart.
3.by the means of the valve blood goeas to the left ventricle and the to the aorta.
4.aorta supplies the blood to all parts of the body.
5.superior venacava and inferior venacava brings deoxygenated blood to the right auricle of the heart.
6.the blood goes to the right ventricleand the to the pulmonary artery.
7.pulmonary artery then takes blood to the lungs for purification.
Hence,the process continues in the same way again.

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.

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