The mammalian circulatory system, also known as the cardiovascular system, is responsible for transporting blood and oxygen throughout the body. It consists of the heart, blood vessels, and blood.
The heart is a muscular organ that acts as a pump to circulate the blood. It has four chambers: the left and right atria and the left and right ventricles. The left side of the heart receives oxygen-rich blood from the lungs and pumps it to the rest of the body, while the right side receives oxygen-poor blood from the body and pumps it to the lungs for oxygenation.
Blood vessels are the interconnected network of tubes that carry blood throughout the body. There are three main types of blood vessels: arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart to the body tissues, while veins carry deoxygenated blood back to the heart. Capillaries are small, thin-walled vessels that connect arteries and veins and facilitate the exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues.
Blood is a fluid connective tissue that carries various substances throughout the body. It consists of cells, such as red blood cells, white blood cells, and platelets, suspended in a liquid called plasma. Red blood cells transport oxygen to the tissues and remove carbon dioxide, while white blood cells are involved in the immune response and platelets help in clotting to prevent excessive bleeding.
The circulatory system plays a crucial role in maintaining homeostasis by delivering oxygen, nutrients, hormones, and immune cells to the cells and tissues of the body. It also helps regulate body temperature, pH balance, and fluid balance.
the mammalian circulatory system
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