← Chapter 19
Anatomy & Physiology · Chapter 19
The Heart Valves
Four one-way valves keep blood moving
forward
and stop it flowing back. Two sit between atria and ventricles, two guard the exits. Tap each valve.
Tricuspid valve
The heart valves
one-way doors
The four valves
“Try before you buy”
—
Tri
cuspid on the
right
,
Bi
cuspid (mitral) on the
left
. Heart sounds:
“lub”
= AV valves close,
“dub”
= semilunar valves close.
📷 Reference image
A real labeled figure to compare with the interactive above.
The Heart Valves — OpenStax, CC BY 3.0 (via Wikimedia Commons)
