Question

explain the valves in human heart ​

Answer 1

Answer:

MARK AS BRAINLIEST

Explanation:

Heart valves separate the atria from the ventricles, or the ventricles from a blood vessel. Heart valves are situated around the fibrous rings of the cardiac skeleton. The valves incorporate leaflets or cusps, which are pushed open to allow blood flow and which then close together to seal and prevent backflow.

Answer 2

Answer:

(1) Tricuspid valve: Tricuspid valve is present between the right atrium and right ventricle. It has three cusps or flaps. It prevents the backilow of blood into right atrium.

(2) Bicuspid valve : Bicuspid valve, also called mitral valve is present between the left atrium and left ventricle. It has two flaps. It prevents the backilow of blood in let atrium. Both tricuspid and bicuspid valves are attached to papillary muscles with tendinous chords or chordate tendinae to prevent valves from turning back into atria at the time of systole.

(3) Semilunar valve: These are present at the opening of pulmonary artery and systemic aorta. They prevent the back flow of blood when ventricles undergo systole.

(4) Thebesian valve: Thebesian valve is present at the opening of coronary sinus.

(5) Eustachian valve: Eustachian valve is present at the opening of inferior vena cava.