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There are two types of circulations, known as lesser and greater circulation. They are placed in series. say blood enters in right atrium through superior and inferior vena cave. Then it enters right ventricle. Then it passes to lungs, via pulmonary trunk. After purification from here it goes to left atrium. From it goes to left venrticle. From left ventricle it goes to all the body, but lungs. then from superior and inferior vena cave it again enters the left atrium.

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How does oxygenated blood get into the left atrium?

Oxygenated blood leaves the lungs through the pulmonary veins and then into the left atrium.


What brings air into contact with blood?

In the human body, air is brought into contact with blood in the lungs. This happens through the process of respiration, where oxygen from the air diffuses into the blood in the capillaries surrounding the alveoli in the lungs, and carbon dioxide from the blood diffuses into the air to be exhaled.


Oxygen diffuses into the blood from the?

alveoli in the lungs, where it passes through the thin walls of the capillaries surrounding the alveoli to enter the bloodstream. This process is driven by a concentration gradient, with oxygen moving from an area of high concentration in the alveoli to an area of lower concentration in the blood.


Through what organ must the blood pass in order to change its way?

The oxygen is passing from through the walls of the capillaries and the organs' walls. There are specially designed proteins which are allowed from the cell, to pass through the cell's wall (membrane).


What do the foramen ovale and ductus arteriosus do?

That is a very good question! In case of the fetus, the blood flow through the lungs is closed. So most of the blood passes through the foramen ovale to left atrium. Some blood goes to right ventricle. it is pumped by the right ventricle into pulmonary aorta. This blood passes to systemic aorta via ductus arteriosus. Both the blood flows stops after the birth of the baby. Baby takes a first breath. Blood starts to flow through the lungs. Due to pressure changes the foramen ovale get closed. By the same reason the ductus arteriosus get closed, as the circular muscles of the artery can contract.

Related Questions

What happens to blood when it passes the lungs?

It turns red


If blood takes in oxygen and releases carbon dioxide in the lungs the blood passes through what?

The blood passes through tiny capillaries that lie in close proximity to the alveoli in the lungs. This is where the gas exchange takes place.


How many time do red blood cells passes through the heart when it travels from the lungs and return to the lungs?

The body has a double circulation the blood passes through the heart twice in one complete circuit.


Blood passes through the pulmonary valve to the pulmonary trunk to the right and left what?

lungs


What are the four major organs through which the blood passes?

The heart, lungs, kidneys, and liver are the four major organs through which the blood passes in the body. The heart pumps oxygen-rich blood to the lungs for oxygenation, then to the kidneys and liver for filtering and detoxification before circulating back to the heart.


When is blood oxygenated and deoxygenated as it circulates?

It is oxygenated as it passes through the lungs. The rest of the body deoxygenates it.


What is the body organ which oxygen passes through to capillaries?

The alveoli and capillaries in the lungs pass oxygen to the blood. Both have very thin walls, which allow the oxygen to pass from the alveoli to the blood. The capillaries then connect to larger blood vessels, called veins, which bring the oxygenated blood from the lungs to the heart.


Before oxygen is pick up in the lungs by hemoglobin it first diffuses through?

oxygen passes through the pleural cavity to blood( red blood cells)


When air passes out of the lungs it is inspiration?

When air passes through your lungs it is called respiration.


What happens to the blood as it passes from the main vein to the heart and eventually to the main artery?

From the main vein the blood enters the right artery which will then pump into the right artery next right vertical will pump the net into the lungs. After passing through the lungs they will enter the left artery the veins the left artery pump the blood into the left


How does oxygenated blood get into the left atrium?

Oxygenated blood leaves the lungs through the pulmonary veins and then into the left atrium.


The number of valves thorugh which blood leaves the heart?

2 valves: pulmonary valve- blood leaving from the right ventricle passes through it towards the lungs; aortic valve- blood leaving from the left ventricle passes through it to the body (by way of the aorta)