A muscular partition called the septum separates the right and left sides of the heart. Blood returning to the heart from the body’s tissues enters the heart at the right atrium. From the right atrium, the blood passes through a valve into the right ventricle.
The right ventricle is more muscular than the right atrium because it pumps blood at considerable pressure through a second valve and into the artery leading to the lungs.
Blood returning from the lungs to the heart enters the left atrium and then passes through a third valve into the left ventricle. The very muscular left ventricle pumps blood through a fourth valve in the body’s largest artery, the aorta.
From the aorta, blood travels through the arteries and arterioles to the systemic capillaries, venules, and veins and then back to the right atrium again. The left ventricle is the most muscular of the heart’s four chambers because it must do more work than any other chamber.
The left ventricle must generate pressures higher than aortic blood pressure in order to pump blood into the aorta. The right ventricle has a thinner wall and does less work because the blood pressure in the arteries leading to the lungs.
Answers & Comments
Answer:
Blood flow in heart
Explanation:
A muscular partition called the septum separates the right and left sides of the heart. Blood returning to the heart from the body’s tissues enters the heart at the right atrium. From the right atrium, the blood passes through a valve into the right ventricle.
The right ventricle is more muscular than the right atrium because it pumps blood at considerable pressure through a second valve and into the artery leading to the lungs.
Blood returning from the lungs to the heart enters the left atrium and then passes through a third valve into the left ventricle. The very muscular left ventricle pumps blood through a fourth valve in the body’s largest artery, the aorta.
From the aorta, blood travels through the arteries and arterioles to the systemic capillaries, venules, and veins and then back to the right atrium again. The left ventricle is the most muscular of the heart’s four chambers because it must do more work than any other chamber.
The left ventricle must generate pressures higher than aortic blood pressure in order to pump blood into the aorta. The right ventricle has a thinner wall and does less work because the blood pressure in the arteries leading to the lungs.
I hope this helps!^^
Answer:
On how the blood flows in and out of the heart.
it is also how the systemic circulation and pulmonary circulation goes.