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atrial diastole
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoP wave
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What is the difference between depolarizing and non-depolarizing drugs?
nondepolarizing meds act as an antagonist to acetylcholine at the myoneural junction in the muscle. Polarizing will mimick the effects of acetylcholine and cause membrane depolarization at the neuromuscular junction. In other words, look over your action potential.
What is the difference between atria and atrium?
Atria is simply the plural of atrium
What happens in the cardiac cycle immediately before P wave?
The P wave on an ECG occurs when the sinoatrial node which is the hearts natural pacemaker fires causing the atria to contract. The period just before this when there is no electrical activity is the hearts 'resting' period between beats when the muscles are relaxed giving the atria a chance to refill with blood.
What is the main function of the right atria left atria?
to force blood to the ventricles
What separates the atria?
The interatrial septum separates the right and left atria.(upper chambers)
The p in an electrocardiogram sHow is what?
The P wave is the first wave in an ECG complex, and it results from the atria depolarizing. It may not be present in arrhythmias where the atria do not necessarily depolarize, such as junctional or ventricular escape rhythms, and at times when the atria are depolarizing abnormally this will be reflected in the P wave's replacement by abnormal waves, such as the low-amplitude "squiggle" seen in atrial fibrillation, or the "sawtooth" pattern seen in atrial flutter.
The period during which the ventricles are depolarizing which precedes their contraction?
QRS wave
When the chemically gated ion channels open which ion is mainly responsible for depolarizing the sarcolemma?
The main ion responsible for depolarizing the sarcolemma is sodium (Na+).
What is the purpose of a depolarizing agent in a battery?
The term depolarizing agent has been used to denote a substance used in a primary cell to prevent buildup of hydrogen gas bubbles.A battery depolarizing agent takes up electrons during discharge of the cell; therefore, it is always an oxidizing agent.
What is the downstairs chamber in the heart?
the atria
Are auricles extensions of the atria or the ventricle?
The are extentions of the Atria.
Period of heart contraction?
Contraction of the ventricles and atria is called systole. Relaxation is called diastole.
What does eshmeron mean?
It is a non-depolarizing muscle relaxant, apparently.
Does Valium depolarize or hyperpolarize a cell?
Yes it has a depolarizing effect.
What system has the atria?
The atria are a part of your heart which is in the circulatory system
What are the top two chambers of the heart called?
The Atria and Atrium
When an electrical impulse reaches the AV node it is slowed for a brief period of time so that?
blood can pass from the atria to the ventricles.
