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Anatomy Unit 12
Cardiovascular system
Term | Definition |
---|---|
Erythrocytes | Red blood cell |
Plasma | Fluid portion of the blood |
Hemoglobin | Oxygen carrying pigment in red blood cells |
Stem Cells | Undifferentiated cell that can divide to yield daughter stem cells, or a stem cell, or a progenitor cell |
Hemostasis | Stoppage of bleeding |
Coagulation | Blood clotting |
Pulmonary Circuit | System of blood vessels that carries blood between the heart and lungs |
Systemic Circuit | Vessels that conduct blood between the heart and all body tissues except the lungs |
Pericardium | Serous membrane that surrounds the heart |
Epicardium | Visceral part of the pericardium on the surface of the heart |
Myocardium | Muscle tissue of the heart |
Endocardium | Inner lining of the heart chamber |
Atria | Cavity of the heart that receives the blood from the body |
Ventricles | Cavity of the heart that pumps the blood out of the heart |
Septum | Separates the chambers of the heart |
Tricuspid Valve | Heart valve between the right atrium and right ventricle |
Pulmonary Valve | Valve that allows blood to leave the right ventricle and prevents back flow into the ventricle chamber |
Mitral Valve | Heart valve between left atrium and the left ventricle. Bicuspid valve |
Aorta | Major systemic artery that receives blood directly from the left ventricle |
Aortic Valve | Flaplike structures in the wall of the aorta near its origin that prevent blood from returning to the left ventricle of the heart |
Arterioles | Small branch of an artery that communicates with capillary network |
Capillaries | Small blood vessels that connect an arteriole and a venule |
Venules | Blood vessels that carry blood from the capillaries to the veins |
Systolic Pressure | Arterial blood pressure reached during the systolic phase of the cardiac cycle |
Diastolic Pressure | Lowest arterial blood pressure reached during the diastolic phase of the cardiac cycle. |