Card Set Information
Holy shit these definitions are so good you'll never want to use your own ever again.
A recording of the electrical changes in the myocardium during a cardiac cycle.
Wave corresponding with the initial deflection that corresponds to the depolarization of atrial fibers leading to atrial systole.
Wave that is slowly produced by electrical charges that accompany ventricular repolarization, which ends the ECG pattern.
Second deflection which occurs in the ventricle which causes a greater electrical charge than that of the atria.
Indicates the time for the cardiac impulse to travel from the SA node through the AV node.
Tenth cranial nerve which allows parasympathetic stimulation of the heart.
Nerves that join SA and AV nodes and allows sympathetic fibers to reach the heart.
Reflexes that control the balance between sympathetic and parasympathetic effects on the heart.
Portion of the medulla oblongata that regulates the heart.
Cardiac Control Center
Sensory receptor that detects changes in pressure.
Strong, elastic vessels adapted for carrying the blood away from the heart under high pressure.
Small branches of an artery that communicates with a capillary network.
Layer of epithelial cells that forms the inner lining of blood vessels and heart chambers.
Decrease in the diameter of a blood vessel.
Increase in the diameter of a blood vessel.
Postganglionic visceral efferent fibers innervating smooth muscles of vessel walls.
Vessels that carry blood from a capillary to a vein.
Open and close to let the blood flow in only one direction between the heart chambers.
Blood vessels, including small arteries, arterioles, and meta arterioles that form the major part of the peripheral resistance to blood flow.
Vessel that carries blood towards the heart.
Blood vessels that hold the major portion of the intravascular blood volume (the veins.)
The passage of blood directly from arteries to veins, without going through the capillary network.