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Week 10 Quiz 8

Masterbooks Intro to A&P Volume 2

TermDefinition
pericardium this sac goes around the heart
epicardium made mostly of connective tissue and provides a protective covering for the surface of the heart
desmosome helps hold the muscle fibers together as they contract
pulmonary circulation the right-sided circulation
systemic circulation the left-sided circulation
artery vessel that carries blood away from the heart
vein vessel that carries blood toward the heart
atria collects blood as it returns to the heart
pulmonary veins veins that bring blood from the lungs to the left atrium
vena cavae the veins that bring blood back from the brain and the body
tricuspid valve blood passes from the right atrium into the right ventricle through this
bicuspid valve blood passes from the left atrium into the left ventricle through this
mitral used for the bicuspid valve because the two cusps look a little like a bishop's headdress, called a miter
chordae tendineae the ties that bind the cusps to the ventricular walls; this Latin name means "heart strings:
semilunar valves the valves guarding the exit from the ventricles
pulmonary valve the semilunar valve between the right ventricle and the pulmonary artery
cardiac cycle the name given to the five steps involved in filling the heart's chambers and pumping the blood
atrial systole after the passive filling of the ventricles, when the atria simultaneously contract
edema swelling caused by fluid accumulating in tissues
pulmonary edema fluid in the lungs
interventricular septum muscular wall between the ventricles
myocardial infarction commonly known as a "heart attack"
myocardial ischemia the situation where adequate oxygen is not delivered to the heart muscle
coronary heart disease a type of cardiovascular disease, a term that includes heart attacks and strokes and other diseases of the heart and blood vessels
autorhythmic cells these repeatedly produce electrical signals that stimulate the heart to contract