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blood enters the right atrium through two large veins, the superior vena cava and the inferior vena cava. the blood is deoxygenated and is bluish in colour. the right atrium contracts and pushes blood through to the right ventricle. this turns contracts and pushes blood to the lungs through the pulmonary vein.
when the blood reaches the lungs it receivers oxygen and turns bright red. this oxygenated blood then flows back to the heart and enters through the left atrium via the pulmonary veins. when this chamber contracts, blood is pushed out of the aorta to circulate around the body.
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How does the blood entering the heart from the lung differ from the blood entering the heart from the blood?
The blood entering from the lungs has a high oxygen content and the blood entering from the body is high in carbon dioxide.
Why does blood have to go first to the lungs before entering the heart?
so they can purified the air the goes into the heart
What would happen if the blood entering the heart mix with blood leaving the heart?
if blood entering the heart gets mixed with blood leaving the heart the the blood leaving the heart will get poluted. the blood entering the heart is poluted when it enters the heart, the heart cleans it up; so when the blood leaves the heart it is clean so if it gets polluted the person may get sick and this leads to his/her death.
What path does drop of the blood follow from entering the heart to leaving the heart through the aorta?
pumping
Is blood going to the heart darker or lighter than blood going away from the heart?
Blood entering the heart from Superior vena cava and Inferior vena cava is "dirty". Bloold going through Pulmonary artery is 'dirty" and is "cleaned" (oxygenated) in the lungs. Blood entering the heart via pulmonary vein and leaving via aorta is clean.
What do you think would happen if the blood entering the heart mixed with the blood leaving the heart?
if blood entering the heart gets mixed with blood leaving the heart the the blood leaving the heart will get poluted. the blood entering the heart is poluted when it enters the heart, the heart cleans it up; so when the blood leaves the heart it is clean so if it gets polluted the person may get sick and this leads to his/her death.
Does the valve prevent blood to get in the heart?
Yes and no. When a valve is open, it is allowingblood to enter the heart's chambers. When a valve is closed, it is preventing blood from entering a chamber.
What law of the heart is mechanism that ensures the volume of blood discharged from the heart is equal to the volume entering its chambers?
stallings
Is the blood entering the right side of the heart is low in oxygen because it has just returned to the heart after nourishing the body with needed oxygen?
Correct. Blood returning to the right side of the heart has already left the body and returned to the heart to be pumped to the lungs. There it will let go of carbon dioxide and pick up oxygen.
What is the Hierarchy of blood vessels?
Arteries carry blood away from the heart and empty into Arterioles which then lead to Capillaries, the blood then begins its return trip to the heart by entering Venules which empty into Veins which return the blood to the heart.ArteriesArteriolesCapillariesVenulesVeins
Is the blood entering the right side of the heart low in oxygen because it has just returned to the heart after nourishing the body with needed oxygen?
Correct. Blood returning to the right side of the heart has already left the body and returned to the heart to be pumped to the lungs. There it will let go of carbon dioxide and pick up oxygen.
Compare and contrast the hydraulic system to the human heart?
well their are valves in the human heart, and they control the amount of blood entering the heart, and the backflow of it aswell
