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CDVS: Conduction

Heart electrical conduction and circulation.

QuestionAnswer
arteries vessels that carry blood away from the heart
veins vessels that carry blood towards the heart
SA Node The pacemaker of the heart, located in the right atrium.
AV Node electrical impulse to this tissue is delayed to let atria fully contract, located in the inferior of the right atrium
Purkinje fibers transmits electrical impulses to ventricular tissue
Pericardial cavity contains pericardial fluid
interatrial septum partition between the right and left atria
interventricular septum partition between the right and left ventricles
bundle branches Branches off the Bundle of His that conduct impulses to the left and right ventricles
P wave represents Atrial contraction (systole)- SA Node
T wave represents ventricular repolarization (relaxation)
QRS complex ventricular contraction
Bundle of HIS a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
arterioles Small arteries that deliver blood to capillaries
venuoles a very small vein, especially one collecting blood from the capillaries.
systolic pressure Blood pressure in the arteries during contraction of the ventricles.
diastolic pressure occurs when the ventricles are relaxed; the lowest pressure against the walls of an artery
Capillaries Microscopic vessel through which exchanges take place between the blood and cells of the body
Created by: jfoote
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