In your explanation, be sure to:
- identify the function of a valve in relation to the flow of blood
- identify two places in the circulatory system where valves are found
- identify one specific valve by name and describe its specific function
2007-12-30 10:58:24 · 7 answers · asked by Kevin G 2 in Science & Mathematics ➔ Biology
-valves control how much blood leaves the heart in each pump. they open, allowing blood to pass through and close, ceasing blood flow. their closing also prevents the backflow of blood.
-valves are found in the heart, between the atria and the ventricles, and leaving the heart between the heart ventricles and the respective arteries. the veins of the circulatory system also have valves preventing backflow of blood.
-one of the major valves is the bicuspid (mitral) valve. bicuspid meaning it has 2 cusps, or flaps. it is between the left atrium and left ventricle. the left ventricle of the heart is the largest of the 2 ventricles and pumps blood to the entrie body except the lungs (which gets its bloodsupply from the smaller right side of the heart). it opens, allowing blood to flow from the left atrium into the left ventricle, and closes so that when the left ventricle "beats" making the heart pump blood to the body... it does not squirt back into the left atrium. when that happens, you have whats called a murmur or "leaky valve"... making the heart less efficient and allowing less blood to reach the rest of the body.
2007-12-30 11:28:14 · answer #1 · answered by kmichele83 1 · 3⤊ 0⤋
Function Of Valves In Heart
2016-11-10 06:30:48 · answer #2 · answered by sigmon 4 · 0⤊ 0⤋
Function Of Valves
2016-12-14 15:44:42 · answer #3 · answered by Anonymous · 0⤊ 0⤋
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RE:
Explain the role of valves in the functioning of the circulatory system. I am so confused!?
In your explanation, be sure to:
- identify the function of a valve in relation to the flow of blood
- identify two places in the circulatory system where valves are found
- identify one specific valve by name and describe its specific function
2015-08-19 14:01:52 · answer #4 · answered by ? 1 · 0⤊ 1⤋
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The valves in the body makes sure that the fluids flow in one direction, and prevent backflow. In the heart the valves prevent the backflow of blood to make sure it travels in one direction (atrium to ventricle). The valves are also present in the lymphatic system that makes the lymph travel in one direction.
2016-04-04 23:22:26 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The heart and veins have valves to ensure one way flow of blood. The names of the heart valves are:
The tricuspid valve is between the right atrium and right ventricle.
The pulmonary or pulmonic valve is between the right ventricle and the pulmonary artery.
The mitral valve is between the left atrium and left ventricle.
The aortic valve is between the left ventricle and the aorta.
2007-12-30 16:28:14 · answer #6 · answered by OKIM IM 7 · 0⤊ 1⤋
Valves ensure that blood flows in one direction.
When the heart contracts, it drives blood through your arteries. If you had no arterial valves, when the heart relaxed again, the blood would reverse direction, and would never make it to your extremities, so they'd get no oxygen. So, the one-way valves ensure that blood flows only away from your heart in your arteries, and only towards your heart in your veins.
2007-12-30 11:07:50 · answer #7 · answered by lithiumdeuteride 7 · 0⤊ 2⤋
valves of heart ventricles? or veins? they usually function to prevent back flow of blood.
2016-03-17 07:03:59 · answer #8 · answered by Edeltraud 4 · 0⤊ 0⤋