The mitral valve and tricuspid valve, controls blood flow from

Arteries are thick – walled and have narrow lumen as compared to veins.

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Angina is acute chest pain when the blood circulation to the brain is reduced.

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Persons with blood group AB can donate blood to any person with any blood group under ABO system.

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Calcium ions play a very important role in blood clotting.

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Solution

The correct option is A Arteries are thick – walled and have narrow lumen as compared to veins.
Blood moves through the four chambers as the heart pumps. There are four valves which control the flow of blood through the heart. They are called the aortic valve, the mitral valve, the pulmonary valve, and the tricuspid valve.The mitral valve and tricuspid valve, which controls blood flow from the atria to the ventricles. The aortic valve and pulmonary valve, which control blood flow out of the ventricles. So With each beat, the valves open and close to keep blood moving in the right direction

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Similar questions

Q. Given below are four statements (i-iv) regarding human blood circulatory system. Choose the option representing the correct statements.
(i) Arteries are thick-walled and have narrow lumen as compared to veins
(ii) Angina is acute chest pain when the blood circulation to the brain is reduced
(iii) Persons with blood group AB can donate blood to any person with any blood group under ABO system
(iv) Calcium ions play a very important role in blood clotting

Q. Given below are four statements (i-iv) regarding human blood circulatory system.
i. Arteries are thick-walled and have narrow lumen as compared to veins.
ii. Angina is acute chest pain when the blood circulation to the brain is reduced.
iii. Persons with blood group AB can donate blood to. any person with any blood group under ABO system.
iv. Calcium ions play a very important role in blood clotting.
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