Cardiovascular System
Cardiovascular system HAP 1 (B pharma) v Cardiovascular system includes heart and blood vessels. v Heart pumps blood into the blood vessels. Blood vessels circulate the blood throughout the body. v Blood transports nutrients and oxygen to the tissues and removes carbon dioxide and waste products from the tissues. HEART Ø Heart is a muscular organ that pumps blood throughout the circulatory system. Ø It is situated in between two lungs in the mediastinum. Ø It is made up of four chambers, two atria and two ventricles. Ø The musculature of ventricles is thicker than that of atria. Force of contraction of heart depends upon the muscles. HEART ANATOMY: Heart is made up of three layers of tissues: 1. Outer pericardium 2. Middle myocardium 3. Inner endocardium. v PERICARDIUM It is the outer covering of the heart, made up of two layers: i. Outer parietal pericardium...