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Chapter 11 Circulatory System Flashcards

Cardiac Cycle Events of one complete heartbeat
Pressure Points Point where you can feel the blood flowing through the veins, feeling the heartbeat
Hypertension An abnormally high blood pressure
Arteriosclerosis Any of a number of proliferative and degenerative changes in the arteries leading to their decreased elasticity
Apex Point of the heart
Arterial Blood Oxygenated blood held/carried by the arteries
Arteries Vessels that carry blood AWAY from the heart
Arterioles Minute arteries
Blood Pressure Pressure exerted on the inner walls of a blood vessel
Capillaries Minute blood vessels connecting arterioles with venules
Diastole A period, between contractions, of relaxation of the heart during which it fills with blood
Fibrillation Irregular, uncordinated contraction of muscle cells, particularly of the heart musculature
Myocardium the cardiac muscle layer of the heart wall
Pericardium The membranous sac enveloping the heart
Septum Divides and separates the heart into left and right halves
Serous Fluid A clear, watery fluid secreted by the cells of a serous membrane, found between membranes of the heart, this reduces friction
Systole The contraction phase of heart activity
Vein A vessel CARRYING blood away from the tissues towards the heart
Venules Small veins
Cause of Hypertension Fever, physical exertion, and emotional upset
Good Blood Pressure Level 120 over 80
Deoxygenated Blood Path (Right Side) In superior vena cava, in right ventricle, out pulmonary artery and sent to the rest of the body
Oxygenated Blood Path (Left Side) In pulmonary veins, in left ventricle, out aorta and into the lungs
Created by: AndreaPost



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