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24 Cards in this Set

  • Front
  • Back
Cardiovascular disease
disorder of heart and major blood vessels
heart contraction
heart chambers fill, heart muscle at rest
normal resting adult heart beat
heart at rest
ejects approx. 5L
3 layers of heart
innermost layer of heart lining the heart chamber and valves
middle layer made of muscle, responsible for pumping action
outermost layer
sac that heart sits in, made of 2 layers (visceral pericardium, and parietal pericardium)
visceral pericardium
adheres to the epicardium
parietal pericardium
touch fibrous tissue attaches to great vessels, diaphragm, sternum, vertebral column, and supports heart in mediastinum
pericardial space
space between visceral pericardium and parietal pericardium, filled with 30mL of fluid, lubricates surface of heart, reduces friction during systole
4 heart chambers
right atria
right ventricle
left atria
left ventricle
right side of heart
right atria and right ventricle, distribute venous blood (deoxygenated) to the lung via pulmonary artery
right atria
receives blood from superior vena cava (head, neck, and upper extremities), and inferior vena cava (trunk and lower extremities), and coronary sinus
left atria
gets oxgenated blood from pulmonary veins
left ventricle vs. right ventricle thickness
left ventricle 2 1/2 times thicker than right b/c it must pump to oxygenate body.
right ventricle and left ventricle positions
right ventricle sits anteriorly
left ventricle sits posteriorly
PMI (point of maximal impulse)
left ventricle makes this
midclavicular line at 5th intercostal space
2 types of valves

semilunar valves
tricuspid valve
separates right atrium from right ventricle

has 3 cusps/leaflets
mitral valve / bicuspid
separates left atrium from left venticle

has 2 cusps
how the valves stay closed during systole
papillary muscles
chordae tendinae pull closed like a hot air balloon