HEART VALVES
There are four valves in the heart
- Tricuspid
- Mitral
- Pulmonary
- Aortic
The valves are strong, thin leaflets
of fibrous tissue covered by cells. Although the pumping
action of the heart is effective in ejecting blood from
the chambers, it requires a method to guarantee that
the pumped fluid goes in the desired direction.
 The
valves are designed to allow blood to pass in only one
direction. They function like a gate, which opens only
when pushed. The valves open and close in response to
the naturally occurring pressure that build up within
the heart's chambers.
|
