The Heart Flashcards
Aorta
The large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body.
Aortic Valve
The semilunar valve separating the aorta from the left ventricle that prevents blood from flowing back into the left ventricle.
Artery
Any of the tubular branching muscular and elastic-walled vessels that carry blood from the heart through the body.
Atrium
An anatomical cavity or passage; especially a chamber of the heart that receives blood from the veins and forces it into a ventricle or ventricles.
Cardiovascular System
The transport system of the body responsible for carrying oxygen and nutrients to the body and carrying away carbon dioxide and other wastes; composed of the heart, blood vessels, and blood.
Cell
Is a small unit in the living system
Inferior Vena Cava
A vein that is the largest vein in the human body and returns blood to the right atrium of the heart from bodily parts below the diaphragm.
Mitral Valve
A valve in the heart that guards the opening between the left atrium and the left ventricle; prevents the blood in the ventricle from returning to the atrium. Alternative name is bicuspid valve.
Pulmonary Circulation
The passage of venous blood from the right atrium of the heart through the right ventricle and pulmonary arteries to the lungs where it is oxygenated and its return via the pulmonary veins to enter the left atrium and participate in systemic circulation.
Superior Vena Cava
Is the second large vein in the human body system.
Systemic Circulation
The branch of the circulatory system that supplies all body organs and then returns oxygen-poor blood to the right atrium via the veins.
Tissue
Is a group of cell that has has the same functions or structure.
Tricuspid Valve
A valve that is situated at the opening of the right atrium of the heart into the right ventricle and that resembles the mitral valve in structure but consists of three triangular membranous flaps.
Valve
A body structure that temporarily closes a passage or orifice, or permits movement of fluid in only one direction.
Vein
Is a vein that gives back blood to the heart.
heart rate
A measure of cardiac activity usually A measure of cardiac activity usually expressed as the number of beats per minute.
Blood Pressure
Pressure exerted by the blood upon the walls of the blood vessels,expressed in millimeters of mercury.
Systolic Pressure
The pressure generated by the left ventricle during systole.
Diastolic Pressure
Blood pressure that remains between heart contractions
Hypertension
An abnormally high blood pressure.
Electrocardiogram (EKG)
A measurement of heart electrical activity.
Pulse
The rhythmic expansion and recoil of arteries resulting from heart contraction; can be felt from the outside of the body.
Cardiology
The study of the heart and its action and diseases.
