Bundle of His - Wikipedia, the free encyclopedia
|
|
The bundle of His , also known as the AV bundle or atrioventricular bundle, is a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from th...
en.wikipedia.org/wiki/Bundle_of_His
|
|
|
|
|
The Sinoatrial Node: The Body's Natural Pacemaker ... In the upper part of the right atrium of the heart is a specialized bundle of neurons known as the sinoatrial node (SA node). Acting as the heart's natural pacemaker, the SA node "fires" at regular intervals to cause the heart of beat with a rhythmn of about 60 to 70...
|
hyperphysics.phy-astr.gsu.edu/HBASE/Biology/sanode.html
hyperphysics.phy-astr.gsu.edu/HBASE/Biology/sanode.html
|
|
|
|
Cells within the sinoatrial (SA) node are the primary pacemaker site within the heart. These cells are characterized as having no true resting potential, but instead generate regular, spontaneous action potentials.
|
www.cvphysiology.com/Arrhythmias/A004.htm
|
|
|
|
The rhythm of the heart is normally determined by a pacemaker site called the sinoatrial (SA) node located in the posterior wall of the right atrium near the superior vena cava.
|
www.cvphysiology.com/Arrhythmias/A002.htm
|
|
|
Information and resources pertaining to the sinoatrial node of the heart. ... What is the sinoatrial node? ... The sinoatrial (SA) node is a section of nodal tissue that is located in the upper wall of the right atrium. The SA node is also referred to as the pacemaker of the heart.
|
biology.about.com/library/organs/heart/blsinoatrialnode...
biology.about.com/library/organs/heart/blsinoatrialnode.htm
|
|
Question: What is the force that acts upon the sinoatrial node in the heart that makes the sinoatrial node send out the electrical charge that causes the heart to beat? schnabel Answer: Wow, that's a complex one!
|
www.newton.dep.anl.gov/askasci/bio99/bio99358.htm
|
|
The heart's pacemaker, the sinoatrial node, does not consist of a group of uniform sinoatrial node cells embedded in atrial muscle. ... The heart's pacemaker, the sinoatrial node, does not consist of a group of uniform sinoatrial node cells embedded in atrial muscle. Instead, it is a heterogeneous tissue with multiple...
|
www.medscape.com/medline/abstract/12625620
|
|
AIM: To study the electrophysiologic effects of adenosine triphosphate (ATP) on rabbit sinoatrial node pacemaker cells and the receptors related with the action of ATP. ... Neither uridine triphosphate nor alpha,beta-methylene ATP had significant electrophysiologic effects on the sinoatrial node of rabbits.
|
www.medscape.com/medline/abstract/12956946
|
|
