Question

Which structures of the heart control the flow of the blood?
A. Arteries
B. Veins
C. Valves
D. Capillaries

Answer 1

Our heart has four valves that control the flow of blood in and out of the chambers in there. There are valves between the atrium as well as in the ventricle on each side of the human heart. There is also a valve regulating the flow of blood out of each of our ventricles. The valves are formulated to keep the blood streaming forward only.

Complete answer: Option – A – Arteries – The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of our body. Each artery is a muscular tube striped by smooth tissue and it has three main layers namely- The intima, the inner layer lined by a smooth tissue know as the endothelium.
Option – B – Veins – Veins are a variety of blood vessels that reimburse deoxygenated blood from your organs back to your heart. These are several from our arteries, that work in delivering oxygenated blood from our heart to the rest of our body. Deoxygenated blood that streams into your veins is obtained within tiny blood vessels known as capillaries.
Option – C – Valves – A valve is an equipment or a biological object that regulates or directs the flow of a fluid such as gases, liquids, fluidized solids, or slurries and etc by opening, closing, or partly impeding the various passageways. Valves are technically fittings but are generally examined as a separate classification.
Option - D - Capillaries- Capillaries are extremely tiny blood vessels. They are so tiny that a single red blood cell can hardly fit through them. They assist to attach our arteries and veins in improvement to stimulating the exchange of specific components between our blood and tissues.

Thus, the correct answer to the question is an option – C ”Valves”.

Note: The valves present in the human heart are actual flaps which are discovered on each end of the two ventricles- founded in the lower chambers of the heart. They act as one-way bays of blood on one side of a ventricle and one-way openings of blood on the other side of a ventricle.