Four one-way valves keep blood moving forward. They stop it from flowing back. Two sit between the atria and ventricles. Two guard the exits. Tap each valve.
Tricuspid valve
The heart valvesdoors that open one way
The four valves
“Try before you buy.” The Tricuspid is on the right, and the Bicuspid (mitral) is on the left. Heart sounds: “lub” = AV valves close. “dub” = semilunar valves close.
📷 Reference image
A real labeled picture to compare with the activity above.
The Heart Valves — OpenStax, CC BY 3.0 (via Wikimedia Commons)
