In this article we will discuss about:- 1. Meaning of the Cardiac Muscle 2. Properties of the Cardiac Muscle 3. Action Potential. Meaning of the Cardiac Muscle: The muscle is involuntary and striated. The muscle fibers repeatedly branch and interdigitate. Wherever these branches come in contact an intercalated disk present, it will maintain continuity with the surrounding fibers through gap [...]
Cardiovascular system deals with study of heart and blood vessels. The human heart is made up 4 chambers namely; 2 atria and 2 ventricles. Atria are thin-walled chambers. Right atrium receives venous blood from peripheral parts of body. The venous blood is brought to right atrium by superior and inferior vena cavae. Left atrium receives oxygenated blood from lungs. This [...]
Cardiac function does not require intact innervations. Frog's heart removed from the body, and in human beings who have transplanted heart, the heart continues to function. The perfusion of the isolated heart in the laboratory will also continue to beat at regular intervals. In a frog's heart when the chambers are separated, each of the chambers shows regular contractions on [...]