Question

how human heart is works

Answer 1

The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes. ... "If [the heart] is not able to supply blood to the organs and tissues, they'll die.

Our Heart is about the size of a fist divided into four chambers namely two ventricles and two atria, as discussed above. There are one ventricle and one atrium on the left side and the other atrium and ventricle towards the right side. The ventricles are the chambers that pump blood and atria are the chambers that receive blood. The  deoxygenated blood received to right atrium from:

The superior vena cava is released into the veins of the upper arms and organs.The inferior vena cava that leaves blood from the veins of legs and lower organs.The coronary sinus, that leaves deoxygenated blood from the heart.

The right ventricle pumps the blood to the lungs for re-oxygenation when it gets filled  up by the pulmonary arteries. The right semilunar valves close and prevents the blood from the pulmonary veins after blood passes through the pulmonary arteries. Then the oxygenated blood is received by the left atrium from the lungs via pulmonary veins.

Facts about Human HeartThe heart weight is around 280 to 340 grams (10 to 12 ounces) in male and 230 to 280 grams (8 to 10 ounces) in the female.On an average, the heart beats about 100,000 times a day i.e, around 3 billion beats in a lifetime.An adult heart beats about 60 to 80 times per minute.The Heart pumps around 5.7 liters of blood in a day.The heart is situated at the center of the chest and points slightly towards left.

Answer 2

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

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.

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