Physiology - The Cardiovascular System
Cardiovascular System ️Organ system consisting of the heart, blood vessels, and blood
Heart ️A muscular pump that drives the flow of blood through blood vessels
Blood Vessels ️Conduits through which blood flows
Blood ️A fluid that circulates ar...
Cardiovascular System ✔️Organ system consisting of the heart, blood vessels, and blood
Heart ✔️A muscular pump that drives the flow of blood through blood vessels
Blood Vessels ✔️Conduits through which blood flows
Blood ✔️A fluid that circulates around the body, carrying materials to and from the cells
Atria ✔️The heart's two upper chambers, which receive blood carried to the heart in veins
Ventricles ✔️The two lower chambers, which pump blood into the arteires
Vasculature ✔️All the blood vessels in the body
Arteries ✔️Large vessels that carry blood away from the heart
Arterioles ✔️Small blood vessels that carry blood to the capillaries; walls contain smooth muscle that
contracts and relaxes to regulate blood flow
Capillaries ✔️The smallest blood vessels in the body; possess thin walls that permit material exchange
between blood and tissues
Venules ✔️Blood vessels that carry blood from capillaries to veins
Veins ✔️Large blood vessels that carry blood toward the heart
, Erythrocytes ✔️Red blood cell; functions in transport of oxygen and carbon dioxide
Leukocytes ✔️White blood cell; functions in immune response
Platelets ✔️Cell fragments that play an important role in blood clotting
Plasma ✔️Liquid in the blood made up of water and dissolved solutes, including proteins; represents
about 20% of the total volume of extracellular fluid
Pulmonary Circuit ✔️The portion of the vasculature that encompasses all the blood vessels within the
lungs and those connecting the lungs with the heart
Systemic Circuit ✔️The portion of the vasculature that encompasses all of the body's blood vessels,
except those belonging to the pulmonary circuit
Aorta ✔️A major artery whose branches carry blood to all organs and tissues in the systemic circuit
Vena Cava ✔️One of the two large veins that carry blood into the right atrium
Pulmonary Arteries ✔️Arteries that carry blood to the lungs from the heart
Pulmonary Veins ✔️Veins that carry blood from the lungs to the heart
Epicardium ✔️Outter membrane surrounding the heart
Myocardium ✔️The entire cardiac muscle mass
Endothelium ✔️A layer of epithelial cells that line the interior surface of the walls of all blood vessels
and the heart
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