Cardiovascular system

The cardiovascular system (circulatory system), is a complex network responsible for the transport of blood, nutrients, gases, and waste products throughout the body. It consists of the heart, blood vessels (arteries, veins, and capillaries), and blood. The heart functions as a pump, propelling blood through the arteries to various tissues and organs, while veins return deoxygenated blood back to the heart. Capillaries facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste products between blood and tissues.

The cardiovascular system consists of the heart and blood vessels, which together ensure the circulation of blood throughout the body. The circulatory system, on the other hand, includes the heart, blood vessels, and the blood itself, forming a complete network responsible for transporting nutrients, gases, and waste products. Finally, hematology is the medical discipline that studies blood and its various components, including red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).