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What controls the timing of your he
What controls the timing of your heartbeat?
Your heart's electrical system controls the timing of your heartbeat by regulating your:
Heart rate, which is the number of times your heart beats per minute.
Heart rhythm, which is the synchronized pumping action of your four heart chambers.
Your heart's electrical system should maintain:
A steady heart rate of 60 to 100 beats per minute at rest. The heart's electrical system also increases this rate to meet your body's needs during physical activity and lowers it during sleep.
An orderly contraction of your atria and ventricles (this is called a sinus rhythm).
See a picture of the heart and its electrical system .
How does the heart's electrical system work?
Your heart muscle is made of tiny cells. Your heart's electrical system controls the timing of your heartbeat by sending an electrical signal through these cells.
The Heart and Its Electrical System
Two different types of cells in your heart enable the electrical signal to control your heartbeat:
Conducting cells carry your heart's electrical signal.
Muscle cells enable your heart's chambers to contract, an action triggered by your heart's electrical signal.
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The electrical signal travels through the network of conducting cell "pathways," which stimulates your upper chambers (atria) and lower chambers (ventricles) to contract. The signal is able to travel along these pathways by means of a complex reaction that allows each cell to activate one next to it, stimulating it to "pass along" the electrical signal in an orderly manner. As cell after cell rapidly transmits the electrical charge, the entire heart contracts in one coordinated motion, creating a heartbeat.
The electrical signal starts in a group of cells at the top of your heart called the sinoatrial (SA) node. The signal then travels down through your heart, triggering first your two atria and then your two ventricles. In a healthy heart, the signal travels very quickly through the heart, allowing the chambers to contract in a smooth, orderly fashion.
The heartbeat happens as follows:
The SA node (called the pacemaker of the heart) sends out an electrical impulse.
The upper heart chambers (atria) contract.
The AV node sends an impulse into the ventricles.
The lower heart chambers (ventricles) contract or pump.
The SA node sends another signal to the atria to contract, which starts the cycle over again.
This cycle of an electrical signal followed by a contraction is one heartbeat.
The Heart and Its Electrical System
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SA node and atria
When the SA node sends an electrical impulse, it triggers the following process:
The electrical signal travels from your SA node through muscle cells in your right and left atria.
The signal triggers the muscle cells that make your atria contract.
The atria contract, pumping blood into your left and right ventricles.
AV node and ventricles
After the electrical signal has caused your atria to contract and pump blood into your ventricles, the electrical signal arrives at a group of cells at the bottom of the right atrium called the atrioventricular node, or AV node. The AV node briefly slows down the electrical signal, giving the ventricles time to receive the blood from the atria. The electrical signal then moves on to trigger your ventricles.
When the electrical signal leaves the AV node, it triggers the following process:
The signal travels down a bundle of conduction cells called the bundle of His, which divides the signal into two branches: one branch goes to the left ventricle, another to the right ventricle.
These two main branches divide further into a system of conducting fibers that spreads the signal through your left and right ventricles, causing the ventricles to contract.
When the ventricles contract, your right ventricle pumps blood to your lungs and the left ventricle pumps blood to the rest of your body.
Heart Disease and Electrocardiograms, Specialized ECGs
After your atria and ventricl
Your heart's electrical system controls the timing of your heartbeat by regulating your:
Heart rate, which is the number of times your heart beats per minute.
Heart rhythm, which is the synchronized pumping action of your four heart chambers.
Your heart's electrical system should maintain:
A steady heart rate of 60 to 100 beats per minute at rest. The heart's electrical system also increases this rate to meet your body's needs during physical activity and lowers it during sleep.
An orderly contraction of your atria and ventricles (this is called a sinus rhythm).
See a picture of the heart and its electrical system .
How does the heart's electrical system work?
Your heart muscle is made of tiny cells. Your heart's electrical system controls the timing of your heartbeat by sending an electrical signal through these cells.
The Heart and Its Electrical System
Two different types of cells in your heart enable the electrical signal to control your heartbeat:
Conducting cells carry your heart's electrical signal.
Muscle cells enable your heart's chambers to contract, an action triggered by your heart's electrical signal.
ADVERTISEMENT
The electrical signal travels through the network of conducting cell "pathways," which stimulates your upper chambers (atria) and lower chambers (ventricles) to contract. The signal is able to travel along these pathways by means of a complex reaction that allows each cell to activate one next to it, stimulating it to "pass along" the electrical signal in an orderly manner. As cell after cell rapidly transmits the electrical charge, the entire heart contracts in one coordinated motion, creating a heartbeat.
The electrical signal starts in a group of cells at the top of your heart called the sinoatrial (SA) node. The signal then travels down through your heart, triggering first your two atria and then your two ventricles. In a healthy heart, the signal travels very quickly through the heart, allowing the chambers to contract in a smooth, orderly fashion.
The heartbeat happens as follows:
The SA node (called the pacemaker of the heart) sends out an electrical impulse.
The upper heart chambers (atria) contract.
The AV node sends an impulse into the ventricles.
The lower heart chambers (ventricles) contract or pump.
The SA node sends another signal to the atria to contract, which starts the cycle over again.
This cycle of an electrical signal followed by a contraction is one heartbeat.
The Heart and Its Electrical System
ADVERTISEMENT
SA node and atria
When the SA node sends an electrical impulse, it triggers the following process:
The electrical signal travels from your SA node through muscle cells in your right and left atria.
The signal triggers the muscle cells that make your atria contract.
The atria contract, pumping blood into your left and right ventricles.
AV node and ventricles
After the electrical signal has caused your atria to contract and pump blood into your ventricles, the electrical signal arrives at a group of cells at the bottom of the right atrium called the atrioventricular node, or AV node. The AV node briefly slows down the electrical signal, giving the ventricles time to receive the blood from the atria. The electrical signal then moves on to trigger your ventricles.
When the electrical signal leaves the AV node, it triggers the following process:
The signal travels down a bundle of conduction cells called the bundle of His, which divides the signal into two branches: one branch goes to the left ventricle, another to the right ventricle.
These two main branches divide further into a system of conducting fibers that spreads the signal through your left and right ventricles, causing the ventricles to contract.
When the ventricles contract, your right ventricle pumps blood to your lungs and the left ventricle pumps blood to the rest of your body.
Heart Disease and Electrocardiograms, Specialized ECGs
After your atria and ventricl
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What controls the timing of your heartbeat?Your heart's electrical system controls the timing of your heartbeat by regulating your:Heart rate, which is the number of times your heart beats per minute.Heart rhythm, which is the synchronized pumping action of your four heart chambers.Your heart's electrical system should maintain:A steady heart rate of 60 to 100 beats per minute at rest. The heart's electrical system also increases this rate to meet your body's needs during physical activity and lowers it during sleep.An orderly contraction of your atria and ventricles (this is called a sinus rhythm).See a picture of the heart and its electrical system .How does the heart's electrical system work?Your heart muscle is made of tiny cells. Your heart's electrical system controls the timing of your heartbeat by sending an electrical signal through these cells.The Heart and Its Electrical SystemTwo different types of cells in your heart enable the electrical signal to control your heartbeat:Conducting cells carry your heart's electrical signal.Muscle cells enable your heart's chambers to contract, an action triggered by your heart's electrical signal.ADVERTISEMENTThe electrical signal travels through the network of conducting cell "pathways," which stimulates your upper chambers (atria) and lower chambers (ventricles) to contract. The signal is able to travel along these pathways by means of a complex reaction that allows each cell to activate one next to it, stimulating it to "pass along" the electrical signal in an orderly manner. As cell after cell rapidly transmits the electrical charge, the entire heart contracts in one coordinated motion, creating a heartbeat.The electrical signal starts in a group of cells at the top of your heart called the sinoatrial (SA) node. The signal then travels down through your heart, triggering first your two atria and then your two ventricles. In a healthy heart, the signal travels very quickly through the heart, allowing the chambers to contract in a smooth, orderly fashion.The heartbeat happens as follows:The SA node (called the pacemaker of the heart) sends out an electrical impulse.The upper heart chambers (atria) contract.The AV node sends an impulse into the ventricles.The lower heart chambers (ventricles) contract or pump.The SA node sends another signal to the atria to contract, which starts the cycle over again.This cycle of an electrical signal followed by a contraction is one heartbeat.The Heart and Its Electrical SystemADVERTISEMENTSA node and atriaWhen the SA node sends an electrical impulse, it triggers the following process:
The electrical signal travels from your SA node through muscle cells in your right and left atria.
The signal triggers the muscle cells that make your atria contract.
The atria contract, pumping blood into your left and right ventricles.
AV node and ventricles
After the electrical signal has caused your atria to contract and pump blood into your ventricles, the electrical signal arrives at a group of cells at the bottom of the right atrium called the atrioventricular node, or AV node. The AV node briefly slows down the electrical signal, giving the ventricles time to receive the blood from the atria. The electrical signal then moves on to trigger your ventricles.
When the electrical signal leaves the AV node, it triggers the following process:
The signal travels down a bundle of conduction cells called the bundle of His, which divides the signal into two branches: one branch goes to the left ventricle, another to the right ventricle.
These two main branches divide further into a system of conducting fibers that spreads the signal through your left and right ventricles, causing the ventricles to contract.
When the ventricles contract, your right ventricle pumps blood to your lungs and the left ventricle pumps blood to the rest of your body.
Heart Disease and Electrocardiograms, Specialized ECGs
After your atria and ventricl
The electrical signal travels from your SA node through muscle cells in your right and left atria.
The signal triggers the muscle cells that make your atria contract.
The atria contract, pumping blood into your left and right ventricles.
AV node and ventricles
After the electrical signal has caused your atria to contract and pump blood into your ventricles, the electrical signal arrives at a group of cells at the bottom of the right atrium called the atrioventricular node, or AV node. The AV node briefly slows down the electrical signal, giving the ventricles time to receive the blood from the atria. The electrical signal then moves on to trigger your ventricles.
When the electrical signal leaves the AV node, it triggers the following process:
The signal travels down a bundle of conduction cells called the bundle of His, which divides the signal into two branches: one branch goes to the left ventricle, another to the right ventricle.
These two main branches divide further into a system of conducting fibers that spreads the signal through your left and right ventricles, causing the ventricles to contract.
When the ventricles contract, your right ventricle pumps blood to your lungs and the left ventricle pumps blood to the rest of your body.
Heart Disease and Electrocardiograms, Specialized ECGs
After your atria and ventricl
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Apa yang mengontrol waktu detak jantung Anda?
Sistem listrik jantung Anda untuk mengontrol waktu detak jantung Anda dengan mengatur Anda: Denyut jantung, yang merupakan jumlah kali jantung Anda berdetak per menit. Irama jantung, yang merupakan kerja pompa disinkronisasi empat hatimu . ruang sistem listrik jantung Anda harus menjaga: Sebuah denyut jantung stabil 60 sampai 100 denyut per menit saat istirahat. Sistem listrik jantung juga meningkatkan tingkat ini untuk memenuhi kebutuhan tubuh Anda selama aktivitas fisik dan menurunkan itu saat tidur. Sebuah kontraksi teratur dari atrium dan ventrikel (ini disebut irama sinus). Lihat gambar jantung dan sistem listriknya. bagaimana sistem listrik jantung bekerja? otot jantung Anda terbuat dari sel-sel kecil. Sistem listrik jantung Anda mengontrol waktu detak jantung Anda dengan mengirimkan sinyal listrik melalui sel-sel ini. Hati dan Its Sistem Listrik Dua jenis sel dalam hati Anda mengaktifkan sinyal listrik untuk mengendalikan detak jantung Anda: sel Melakukan membawa sinyal listrik jantung Anda. sel-sel otot memungkinkan bilik jantung Anda berkontraksi, tindakan dipicu oleh sinyal listrik jantung Anda. Iklan sinyal listrik perjalanan melalui jaringan melakukan sel "jalur", yang merangsang ruang Anda atas (atrium) dan ruang bawah (ventrikel) berkontraksi. Sinyal ini dapat melakukan perjalanan di sepanjang jalur ini dengan cara reaksi kompleks yang memungkinkan setiap sel untuk mengaktifkan satu sebelahnya, merangsang untuk "menyampaikan" sinyal listrik secara tertib. Sebagai sel setelah sel cepat mengirimkan muatan listrik, jantung berkontraksi seluruh dalam satu gerakan terkoordinasi, menciptakan sekejap. Sinyal listrik dimulai dalam kelompok sel di bagian atas hati Anda disebut sinoatrial (SA) node. Sinyal kemudian perjalanan turun melalui jantung Anda, memicu pertama Anda dua atrium dan kemudian Anda dua ventrikel. Dalam kesehatan jantung, sinyal perjalanan sangat cepat melalui jantung, memungkinkan ruang untuk kontrak yang halus, teratur. Denyut jantung yang terjadi sebagai berikut: . SA node (disebut pacu jantung) mengirimkan impuls listrik tersebut bilik jantung bagian atas (atrium) kontrak. AV terminal mengirimkan impuls ke dalam. ventrikel The bilik jantung lebih rendah (ventrikel) kontrak atau pompa. SA node mengirimkan sinyal lain ke atrium berkontraksi, yang dimulai siklus lagi. siklus ini dari sinyal listrik yang diikuti dengan kontraksi adalah salah satu detak jantung. Jantung dan Its Sistem listrik IKLAN SA node dan atria Ketika node SA mengirimkan impuls listrik, memicu proses berikut: sinyal listrik perjalanan dari node SA melalui sel-sel otot di kanan dan atrium kiri. sinyal memicu sel-sel otot yang membuat kontrak atrium Anda. kontrak atrium, memompa darah ke ventrikel kiri dan kanan Anda. AV node dan ventrikel Setelah sinyal listrik telah menyebabkan atria untuk berkontraksi dan memompa darah ke dalam ventrikel, sinyal listrik tiba di sekelompok sel di bagian bawah atrium kanan disebut node atrioventrikular, atau nodus AV. Nodus AV sebentar memperlambat sinyal listrik, memberikan waktu ventrikel untuk menerima darah dari atrium. . Sinyal listrik kemudian pindah untuk memicu ventrikel Anda Ketika sinyal listrik daun node AV, memicu proses berikut: Sinyal perjalanan menyusuri bundel sel konduksi disebut bundel Nya, yang membagi sinyal menjadi dua cabang: satu cabang pergi ke ventrikel kiri, yang lain ke ventrikel kanan. kedua cabang utama membagi lebih lanjut ke sistem melakukan serat yang menyebar sinyal melalui ventrikel kiri dan kanan, menyebabkan ventrikel berkontraksi. Ketika kontrak ventrikel, ventrikel kanan Anda memompa darah ke paru-paru Anda dan ventrikel kiri memompa darah ke seluruh tubuh Anda. Penyakit Jantung dan Electrocardiograms, EKG Specialized Setelah atrium dan ventricl
Sistem listrik jantung Anda untuk mengontrol waktu detak jantung Anda dengan mengatur Anda: Denyut jantung, yang merupakan jumlah kali jantung Anda berdetak per menit. Irama jantung, yang merupakan kerja pompa disinkronisasi empat hatimu . ruang sistem listrik jantung Anda harus menjaga: Sebuah denyut jantung stabil 60 sampai 100 denyut per menit saat istirahat. Sistem listrik jantung juga meningkatkan tingkat ini untuk memenuhi kebutuhan tubuh Anda selama aktivitas fisik dan menurunkan itu saat tidur. Sebuah kontraksi teratur dari atrium dan ventrikel (ini disebut irama sinus). Lihat gambar jantung dan sistem listriknya. bagaimana sistem listrik jantung bekerja? otot jantung Anda terbuat dari sel-sel kecil. Sistem listrik jantung Anda mengontrol waktu detak jantung Anda dengan mengirimkan sinyal listrik melalui sel-sel ini. Hati dan Its Sistem Listrik Dua jenis sel dalam hati Anda mengaktifkan sinyal listrik untuk mengendalikan detak jantung Anda: sel Melakukan membawa sinyal listrik jantung Anda. sel-sel otot memungkinkan bilik jantung Anda berkontraksi, tindakan dipicu oleh sinyal listrik jantung Anda. Iklan sinyal listrik perjalanan melalui jaringan melakukan sel "jalur", yang merangsang ruang Anda atas (atrium) dan ruang bawah (ventrikel) berkontraksi. Sinyal ini dapat melakukan perjalanan di sepanjang jalur ini dengan cara reaksi kompleks yang memungkinkan setiap sel untuk mengaktifkan satu sebelahnya, merangsang untuk "menyampaikan" sinyal listrik secara tertib. Sebagai sel setelah sel cepat mengirimkan muatan listrik, jantung berkontraksi seluruh dalam satu gerakan terkoordinasi, menciptakan sekejap. Sinyal listrik dimulai dalam kelompok sel di bagian atas hati Anda disebut sinoatrial (SA) node. Sinyal kemudian perjalanan turun melalui jantung Anda, memicu pertama Anda dua atrium dan kemudian Anda dua ventrikel. Dalam kesehatan jantung, sinyal perjalanan sangat cepat melalui jantung, memungkinkan ruang untuk kontrak yang halus, teratur. Denyut jantung yang terjadi sebagai berikut: . SA node (disebut pacu jantung) mengirimkan impuls listrik tersebut bilik jantung bagian atas (atrium) kontrak. AV terminal mengirimkan impuls ke dalam. ventrikel The bilik jantung lebih rendah (ventrikel) kontrak atau pompa. SA node mengirimkan sinyal lain ke atrium berkontraksi, yang dimulai siklus lagi. siklus ini dari sinyal listrik yang diikuti dengan kontraksi adalah salah satu detak jantung. Jantung dan Its Sistem listrik IKLAN SA node dan atria Ketika node SA mengirimkan impuls listrik, memicu proses berikut: sinyal listrik perjalanan dari node SA melalui sel-sel otot di kanan dan atrium kiri. sinyal memicu sel-sel otot yang membuat kontrak atrium Anda. kontrak atrium, memompa darah ke ventrikel kiri dan kanan Anda. AV node dan ventrikel Setelah sinyal listrik telah menyebabkan atria untuk berkontraksi dan memompa darah ke dalam ventrikel, sinyal listrik tiba di sekelompok sel di bagian bawah atrium kanan disebut node atrioventrikular, atau nodus AV. Nodus AV sebentar memperlambat sinyal listrik, memberikan waktu ventrikel untuk menerima darah dari atrium. . Sinyal listrik kemudian pindah untuk memicu ventrikel Anda Ketika sinyal listrik daun node AV, memicu proses berikut: Sinyal perjalanan menyusuri bundel sel konduksi disebut bundel Nya, yang membagi sinyal menjadi dua cabang: satu cabang pergi ke ventrikel kiri, yang lain ke ventrikel kanan. kedua cabang utama membagi lebih lanjut ke sistem melakukan serat yang menyebar sinyal melalui ventrikel kiri dan kanan, menyebabkan ventrikel berkontraksi. Ketika kontrak ventrikel, ventrikel kanan Anda memompa darah ke paru-paru Anda dan ventrikel kiri memompa darah ke seluruh tubuh Anda. Penyakit Jantung dan Electrocardiograms, EKG Specialized Setelah atrium dan ventricl
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