Prashant Dahal

The regular contraction and relaxation of the chambers of the heart in a rhythmic cycle are called heartbeat. The cardiac action potential generated by the SA node and conducted by … Read more

The heart is internally divided into several compartments, well separated by septum and valves, called the chambers of the heart. The human heart has four chambers, two auricles, and two … Read more

The pericardium is a double-layered sac that surrounds the heart externally. It is a double-walled sac-like structure; hence, it is also called the pericardial sac. Pericardium Structure Histologically, the pericardium … Read more

There are three layers of the heart. They are: 1. Epicardium (Outermost Layer of Heart) Epicardium Structure Functions of Epicardium Epicardium-associated Diseases 2. Myocardium (Middle Layer of Heart) Myocardium Structure … Read more

Heart valves are the specialized flap or cusp-like structures inside the heart composed primarily of dense connective tissues that maintain the one-way flow of the blood inside the heart i.e., … Read more

Capillaries are incredibly small and finer blood vessels connecting the arterioles with the venules. They are the smallest blood vessels in our body. Though it seems to be the branch … Read more

Veins are the blood vessels that collect the deoxygenated blood from the various tissues and organs of the body and transport it back to the heart. The blood vessels that … Read more

Arteries are the elastic, muscular tubes (blood vessels) responsible for carrying the blood away from the heart and distributing it to several other organs and tissues. Simply, the blood vessels … Read more

The lymphatic system is an organ system in vertebrates that helps collect (excess interstitial fluid) lymph from tissues and the transportation of the fluid back to the bloodstream for re-circulation. … Read more

Heart Conduction System Also called the cardiac conduction system or the intrinsic conduction system of the heart or electrical conduction system of the heart, is a group of specialized cells … Read more