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A&P Cardiovascular
Terminology of the Cardiovascular System
Term | Definition |
---|---|
Blood | Liquid connective tissue composed of plasma and red and white blood cells |
Hemoglobin | Iron-based protein that binds with oxygen and carbon dioxide so they can be transported in blood |
Naughty Little Monkeys Eat Bananas | Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils. (leukocytes) |
Universal receiver | blood type AB |
universal donors | blood type O |
Atria | 2 superior chambers of the heart |
Ventricle | 2 lower chambers of the heart |
pericardium | double-layered sac that surrounds the heart |
Epicardium | visceral layer containing fatty connective tissue and blood vessels or coronary vessels that nourish the heart |
Myocardium | thick muscular layer that makes up the bulk of the heart wall |
Endocardium | the interior lining of the heart t |
Atrioventricular (AV) Valves | Valves located between the atria and ventricles of the heart |
Semilunar (SL) valves | Valves located between the ventricles and the aorta or pulmonary trunk |
Tricuspid Valve | AV valve between the right atrium and right ventricle |
Bicuspid or Mitral Valve | AV valve between the left atrium and left ventricle |
Pulmonary valve | SL Valve located between the pulmonary trunk and the right ventricle |
Aortic Valve | Left SL Valve located between the aorta and left ventricle |
Vasodilation | when the lumen enlarges or widens |
pulse | Arteries expand and can be felt in the arteries that lie near the surface of the body or where they lie over bone |
Superior vena cava | drains blood from the upper half of the body into the heart |
Inferior vena cava | drains blood from the lower half of the body into the heart |
Carotid | artery located in the throat |
Subclavian | vein located beneath the clavicle |
Femoral | artery that lies superficially just below the groin |
Popliteal | artery located behind the knee |
Radial | artery that lies superficially in the forearm and is generally used to take a persons pulse |
Blood pressure | the amount of pressure exerted by the blood on vessel walls, especially arteries |
Systole | the highest pressure within an artery during the cardiac cycle. Occurs as blood is forced out of the heart during ventricular contraction |
Diastole | the lowest pressure with an artery during the cardiac cycle. Occurs as ventricles relax |
Function of the Cardiovascular System | Circulate blood around the body to allow for exchange of gasses, nutrients, and wastes; regulates body temperature, regulates acid/base balance |
Heart | a four-chambered muscle pump separating oxygen-rich blood on left and oxygen-poor blood on the right by an atria ventricular septum |
Purkinje fibers | stimulate contraction of myocardium |
Plasma | Suspends blood cells, 90% water, 10% nutrients, gases, electrolytes, and hormones |
Benefits of Massage on the cardiovascular system | Improves and increases circulation, assists venous and lymphatic circulation, aids in lowering blood pressure, and improves flow of interstitial fluid |
Anatomy of the cardiovascular system | Heart, blood, blood vessesls (ateries, arterioles, veins, venules, and capillaries) |