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What is the main cation affecting electrical stimulation of the heart?
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∙ 12y ago
Calcium
Wiki User
∙ 12y ago
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Does the ECG record the electrical stimulation of cardiac muscle by conduction system?
Yes, the ECG records the electrical stimulation of the heart muscle by the conduction system and traces the movement of those impulses.
Heartbeat is governed by what body system?
Heart muscles has there own rhythm of contraction. The sinoatrial node has the fastest rate of contraction. That is why it governs the rhythm of the heart. You have the control of the autonomic nervous system over the heart rate. Stimulation of the sympathetic nervous system increase the heart rate. Stimulation of the parasympathetic nervous system decrease the heart rate.
What is chronotropy?
Chronotrophy- is affecting the time or the rate ( as in heart rate)
Is alternating current artifact part of the heart electrical circuity?
No, alternating current artifact is not part of the heart's electrical circuitry. It refers to interference or noise that can be picked up by an electrocardiogram (ECG) due to external electrical sources, such as power lines or nearby electronic devices. The heart's electrical circuitry consists of natural electrical signals and pathways within the body.
Vagus nerveWhat is the effect of vagus nerve stimulation on the heartbeat?
Activation of the vagus nerve typically leads to a reduction in heart rate..
What is autoconduction of the heart?
Autoconduction is the heart's ability to generate its own electrical singnal rhythumically without neural stimulation.
Does the ECG record the electrical stimulation of cardiac muscle by conduction system?
Yes, the ECG records the electrical stimulation of the heart muscle by the conduction system and traces the movement of those impulses.
Is ventricular tachycardia a type of abnormal heart rhythm?
Ventricular tachycardia is an abnormal heart rhythm in which the heart beats rapidly due to electrical stimulation coming from the ventricle.
Is there any risk for a pacemaker patient and electrical muscle stimulation by a chiropractor?
Yes there absolutely is. To put it in it's most basic terms, the heart has electricity running through it. When you get an EKG at the cardiologists office, those lines are measures of the electrical activity of the heart. The pacemaker fires an electrical impulse when it detects that heart did not fire an electrical impulse on its own. By adding electricity via electrical muscle stimulation, you will run the very high risk of confusing the pacemaker. Just don't do it.
What has the author H J J Wellens written?
H. J. J. Wellens has written: 'Electrical stimulation of the heart in the study and treatment of tachycardias' -- subject(s): Electric stimulation, Tachycardia, Therapy, electrophysiology, extrastimulus technique, heart
How does movement of electrical impulse relate to the contraction of the chambers of the heart?
The impulse shocks the left and right atria of the heart. This pumps blood into the left and right ventricle. The ventricles then receive the impulse and pump the blood. The movement of the electrical impulse allows the blood to move through multiple areas of the heart with only one impulse.
How the heart is controlled?
It is controlled by an electrical conduction system special to the heart that allows a impulse begun by the sinoatrial node (SA node) to be propagated throughout the cardiac muscle. The heart contracts after stimulation but in an ordered stimulation that allows efficient contraction of the heart. The atrium contract first and then the ventricles after a short pause.
How can the heart overcome excessive vagal stimulation?
The heart can overcome excessive vagal stimulation through sympathetic reflexes and the initiation of a rhythm by the Purkinje fibers.
Describe how the nerve impulse travels in the heart?
The brain can influence the heart in two ways. Sympathetic and parasympathetic stimulation. Parasympathetic stimulation of the heart is through the vagus nerve. Sympathetic stimulation of the heart is via cervical and thoracic splanchnic nerves. The heart has its own pacemaker cells, so the brain only changes the rate and contractility of the heart.
What happens if the heart receives more sympathetic stimulation than parasympathetic stimulation?
increase its rate and force of contraction
Increased vagal stimulation would cause?
"Increased vagal stimulation would cause..." The heart rate to decrease.
What happens to the heart rate with vagal stimulation?
Your heart is able to independently contract without nerve stimulation. However, frequency of these contractions if the heart was not innervated at all would roughly be 100 beats per minute. A resting individual does not need his or her heart to beat that fast to adequately supply blood to the rest of the body. So when at rest the vagus nerve (the branch innervating the heart) kicks in and slows these contractions down so as not to waste energy.
