The tricuspid valve at once closes, and blocks the way backward.
"A Practical Physiology" by Albert F. Blaisdell
The tricuspid and mitral valves were thickened, and exhibiting minute granulations on their surface.
"An Investigation into the Nature of Black Phthisis" by Archibald Makellar
The tricuspid valves were in a sound state.
"Cases of Organic Diseases of the Heart" by John Collins Warren
C, The tricuspid valves.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
Edwards Lifesciences Launches Physio Tricuspid Heart Valve Repair Ring.
There are four valves in the heart: aortic valve, mitral valve, tricuspid valve, and pulmonary valve.
Lockie's 20-week ultrasound showed her son was missing his tricuspid valve, a condition called tricuspid atresia-hypoplastic right heart syndrome, in which the structures on that side of the heart are undeveloped.