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If you mean the heart, there are two pacemakers. One is in the SA Node and the secondary (and slower) back up pacemaker is in a AV Node.
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∙ 8y ago
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What is cardiac tissue made up of?
Cardiac tissue is made of cardiac muscle cells and a small amount of connective tissue. The cells that make this tissue are called cardiocytes. They have the special ability to "beat" on their own with no nerve stimulation. If one touches another beating cell, they will begin to beat together. In the heart some group will form a pacemaker to provide a rhythm for the organ.
Are heart and liver cells the same?
No, they are very different. The cells that make up the liver need to perform a different job from the heart.
Can people with pacemakers have an MRI and a Cat Scan?
People with pacemakers can have any CT scan. The answer for MRI is changing now. Older pacemakers were not MRI compatible. There are new pacemakers being installed that are MRI compatible (up to a certain size MRI strength). When you had your pacemaker installed, you should have received a card telling the technologist about your pacemaker and if it is safe to enter the MRI that will be used. If you did not get the card or have lost that card contact the office of the doctor that put your pacemaker in and ask them and also request another card.
What type of cells are found in the heart?
"I am not sure of names but i know that many cells make up the heart! Try to look on the Internet for your answer. Hope this helped a bit :)" You got to be kidding me... that wasn't helpful at all, but whatever. In the heart you can find: - Myocardiocytes - those are the cells performing the rhytmic contraction of the whole heart. - Endothelial cells - those are the supporting epithelial cells, insulating the chambers of the heart and the veins.
Why is the heart's pacemaker an important element in the body's function?
SA node is called as pacemaker. SA node beats at the rate of about 70 to 80 beats per minute. The cells from the atria beats at the rate of 50 to 60 beats per minute. Same or some what lower is rate for AV node. The bundle of His ( means of God) beat at still lower rate. The cells from ventricles beat at 30 to 40 beats per minute. So the SA node or pace maker decides the rate of contraction and heart beats in coordinated manner. Other wise you would have landed up in atrial and ventricular fibrillation. You have ineffective heart contraction in fibrillation. You die in no time in ventricular fibrillation, unless you get DC shock.
Where are the cells that make up the sinoatrial node or pacemarker located?
Sinoatrial node is located at the junction of the superior vena cava with the right atrium. It is the normal cardiac pacemaker.
Where are the cells that make up the sinoatrail node or pacemaker located?
The SA (sinoatrial) node is a cluster of cells in the upper part of the right atrium (aka the right upper chamber of the heart).
Where are the cells that make up the pacemaker?
Those cells are nerve cells, the brain sends electrical pulses down and the electricity causes the heart to beat.
Where is a pacemaker placed in the body?
The pacemaker of the heart is the sinoatrial (SA) node, which is located in the upper right atrium, just below the entrance of the superior vena cava. The SA node is responsible for setting the heart rate for the heart.
What is the function of your natural pacemaker?
The contraction of heart (cardiac) muscle in all animals with hearts is initiated by chemical impulses. The rate at which these impulses fire controls the heart rate. The cells that create these rhythmical impulses are called pacemaker cells, and they directly control the heart rate.
What type of cells make up a plant and how?
Embryonic cells make up a plant
What is pacemaker of the heart is the?
The pacemaker of the heart is a bundle of cells that tells the heart when to beat. These cells are connected to the rest of the cells of the heart and communicate with them through electrical signals. The pacemaker cells set the pace (or rate) of the heartbeat.The actual structure that serves as the heart's primary pacemaker is called the sinoatrial node (SA node). As described above, the SA node is a little bundle of cells located in the wall of the right atrium, the small upper chamber on the right side of the heart.What if the SA node is knocked out for some reason? There are actually other regions of the heart that can act as pacemakers. These regions are known as latent pacemakers and include the atrioventricular node (AV node) and other cells that make up the electrical communication system of the heart (including special cells that make up the so-called Purkinje fibers of the heart). Even the cells that make up the large ventricles of the heart can set the pace of the heart.Interestingly, each of the pacemakers described above has a different inherent rate that it "wants" the heart to beat at. For example, the SA node gets excited spontaneously at a rate of about 100 per minute. Some of the latent pacemakers might spontaneously get excited at a rate of 65 per minute or 45 per minute.If that's the case, then wouldn't the heart just beat chaotically? How is it possible that the heart beats in a regular way with all of these different pacemakers lying around?The reason is that under normal circumstances, only the SA node is active; all of the other latent pacemakers are basically inactive. Now, should the SA node fail, the AV node can take over. Likewise, if the AV node fails, cells that make up the Purkinje fibers can take over. And if even they fail, then the ventricular cells can take over as a last resort. There's lots of redundancy for this all-important organ.Another type of pacemaker is the type that gets implanted by physicians. In patients with abnormal heart rates or rhythms, an artificial pacemaker can be implanted. These pacemakers serve the same purpose as the natural pacemakers of the heart: they control the regular rate and rhythm of the heart.
What is the back-up pacemaker of the heart?
The sinoatrial node is known as the pacemaker of the heart.
What are the cells that make up the liver?
there are penitential cells in the liver, -narb
Are organs are made up of cells and tissues.?
Cells make up tissues, and tissues make up organs.tissues are group of cells which perform similar action.so they are made up of cells only
Are organs made up cells and tissues?
Cells make up tissues, and tissues make up organs.tissues are group of cells which perform similar action.so they are made up of cells only
What is the functional cell for the cardiovascular system?
There are lots of different types of cells working in the cardiovascular system. Two main cells are the endothelium--this makes up all of the vasculature (viens) Then there are pacemaker cells that set the rhythm of the heart. (electrical pulses) I have simplified this reasonably.
