PLANT PHYSIOLOGY
TRANSPORT IN PLANT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
To prevent the backflow of blood in the chambers.
|
|
|
To allow the backflow of blood in the heart.
|
|
|
To initiate the flow of the blood in the heart.
|
|
|
None of the above
|
Detailed explanation-1: -Heart valves are parts of your heart that act like doors. They open and close to let blood flow from one area of your heart to another. They help ensure that blood moves at the right time and in the correct direction. As the valves open and close, they create two sounds, which are your heartbeat.
Detailed explanation-2: -The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.
Detailed explanation-3: -The aortic and pulmonic valves close preventing backward blood flow into the heart. The mitral and tricuspid valves then open to allow forward blood flow within the heart to fill the ventricles again.
Detailed explanation-4: -The Bicuspid Valve: On the left side of the heart, between the left atria and ventricle. This prevents backflow of blood from the left ventricle to the left atria. This has two “heartstrings” which is why it is called the BIcuspid valve, “bi” meaning two. This valve is also known as the Mitral valve.