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The conduction starts at the pacemaker region called the Sinoatrial Node (SA node) which is just under where the superior vena cava enters the right atrium. From here the conduction passes to the Atrioventricular Node (AV node) which is just ot the right of the septum. From here the stimulation is passed through the Bundle of His which carries the conduction to the septum where two Bundle Branches pick it up. These branches carry the conduction to the base of the septum where they sperate into the Purkinje Fibres. These fibres carry the conduction all around the heart.
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How would a drug that inhibits the parasympathetic nervous system affect a persons pulse?
It would increase the pulse, providing it acted upon the cardiac conduction system. There are parasympathetic antagonists which act on other parts of the body, such as the bladder; such drugs would not affect the pulse (theoretically).
What is the difference between the liver cell and cardiac cell?
Cardiac cells are for your cardiovascular system th liver cell is for your immune system
Which type of tissue is specialized for conduction of impulses?
Nervous System
Can cardiacmuscle be tetanize?
No. One of themost interesting feartures of cardiac muscle is that it has a long refractory period and so conduction cant be continuous and so tetanus is impossible.
What are the components of the striations in striated and cardiac muscles?
Yes, they are. While skeletal muscles are arranged in regular, parallel bundles, cardiac muscle connects at branching, irregular angles. Anatomically, the muscle fibers are typically branched like a tree branch. In addition, cardiac muscle fibers connect to other cardiac muscle fibers through intercalcated discs and form the appearance of a syncytium (continuous cellular material). These intercalcated discs, which appear as irregularly-spaced dark bands between myocytes (muscle cells), are a unique feature of cardiac muscle .
What is conducting system of the heart description of the components of the conducting system of the heart site and function?
The cardiac conduction system is the conducting system of the heart.
Fibers of the cardiac conduction system are what kind of specalized tissue?
Muscle ( cardiac Muscle)
What segment of the cardiac conduction system functions as the pacemaker of the heart?
Sinoatrial (SA) Node
What areas of the cardiac conduction system make up the AV junction?
AV node and bundle of His
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.
What portion of the cardiac conduction system has the fastest intrinsic rate?
sino atrial nodes is the fastest intrinsic rate
Cardiac conduction system?
The cardiac conduction system is a group of specialized cardiac muscle cells in the walls of the heart that send signals to the heart muscle causing it to contract. The main components of the cardiac conduction system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers. The SA node (anatomical pacemaker) starts the sequence by causing the atrial muscles to contract. From there, the signal travels to the AV node, through the bundle of His, down the bundle branches, and through the Purkinje fibers, causing the ventricles to contract. This signal creates an electrical current that can be seen on a graph called an Electrocardiogram (EKG or ECG). Doctors use an EKG to monitor the cardiac conduction system's electrical activity in the heart.Reviewed ByReview Date: 05/16/2011Steven Kang, MD, Division of Cardiac Pacing and Electrophysiology, East Bay Arrhythmia, Cardiovascular Consultants Medical Group, Oakland, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
What two components of the conduction system constitute the only electrical link between the atria and the ventricles?
The atrioventricular node and the bundle of HIS are the electrical conduction link between the atria and the ventricles.
What is automaticity of the heart?
The property that allows any cell in the cardiac muscle to begin an action potential, or a cardiac conduction, leading to cardiac contraction.
What can cardiac arrest can result from?
A blockage in one or more of the arteries supplying blood to the heart muscles.
What makes your heart beat?
The cardiac conduction system is a group of specialized cardiac muscle cells in the walls of the heart that send signals to the heart muscle causing it to contract. The main components of the cardiac conduction system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers. The SA node (anatomical pacemaker) starts the sequence by causing the atrial muscles to contract. From there, the signal travels to the AV node, through the bundle of His, down the bundle branches, and through the Purkinje fibers, causing the ventricles to contract. This signal creates an electrical current that can be seen on a graph called an electrocardiogram (EKG or ECG). Doctors use an EKG to monitor the cardiac conduction system's electrical activity in the heart.Reviewed ByReview Date: 03/28/2008Glenn Gandelman, MD, MPH, Assistant Clinical Professor of Medicine, New York Medical College, Valhalla, NY. Review provided by VeriMed Healthcare Network.
What is slowest conduction velocity?
Referring to cardiac pathways it is found in the AV node.
