Anatomy of the Cardiovascular System

What is the name of the valve that guards the right atrioventricular orifice?

How many flaps does the tricuspid valve have?

What is the name of the valve that guards the left atrioventricular orifice?

How many flaps does the mitral valve have?

What is another name for the mitral valve?

What is the main difference between the tricuspid and mitral valves?

What is the purpose of the tricuspid and mitral valves?

Which valve is located on the right side of the heart?

What is the term for the orifice that the tricuspid valve guards?

Anatomy of the Cardiovascular System

The pericardium is a covering layer that surrounds the heart, consisting of two parts: fibrous and serous.
The fibrous pericardium is a tough, loose-fitting, and inelastic sac around the heart.
The serous pericardium has two layers: the parietal layer (lining inside the fibrous pericardium) and the visceral layer (epicardium, adhering to the outside of the heart).
The pericardial space, located between the visceral and parietal layers, contains a few drops of pericardial fluid.
The function of the heart coverings is to provide protection against friction, with the fibrous pericardial sac having a smooth, well-lubricated lining.

Valves of the Heart

The heart valves are mechanical devices that allow blood flow in one direction only.
There are four sets of valves essential for the normal functioning of the heart.
The right atrioventricular valve has three flaps, making it also known as the tricuspid valve.
The left atrioventricular valve has two flaps and is also known as the bicuspid or mitral valve.

Learn about the structure and layers of the pericardium, including the fibrous and serous pericardium, and the pericardial space. Test your understanding of the cardiovascular system anatomy.