Freebase(0.00 / 0 votes)Rate this definition: Limpet. Limpet is a common name for a number of different groups of sea snails and freshwater snails. The common name is applied to those snails that have a simple shell which is broadly conical in shape, and either is not spirally coiled, or appears not to be coiled in the adult snail.
Help for Circulation. Following a healthy lifestyle is one of the best ways to promote and maintain circulatory health. As high cholesterol levels can lead to clogged arteries, plaque deposits and hypertension, eating a high fiber and low fat diet will help keep blood flowing.
Main function of valve is to prevent back flow of blood. This is because blood pressure in veins is very low (compared to arteries). There is no need of valves in the arteries because the blood pressure usually varies between 70-110 mm Hg. Imagine you have just opened a tap with full flow in a washroom and you applied your hand at the outflow. That is just 50-60 mm Hg (in normal circumstances).