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Giardia is a parasitic disease caused by Giardia duodenalis. Patients have diarrhea, abdominal pain and weight loss.Magnify 1000x.
The conduction system of the heart is responsible for the generation and conduction of cardiac electrical impulses, and is the electrical system of the heart.
The conduction system of the heart is the electrical anatomy of the heart, which runs from the atria to the ventricles and is responsible for the formation and conduction of impulses.
This is the bacillus pestis, the pathogen that caused the Black Death in Europe.Magnify 1000x
Giardia is a parasitic disease caused by Giardia duodenalis. Patients have diarrhea, abdominal pain and weight loss.Magnify 1000x.
The conduction system of the heart is responsible for the generation and conduction of cardiac electrical impulses, and is the electrical system of the heart.
When 2:1 atrioventricular conduction occurs, it can't be diagnosed as second degree type I or type II atrioventricular block unless there are two consecutive PR intervals.
The coronary arteries are divided into the left coronary artery and the right coronary artery system.
Electric impulses can be conducted, but the conduction speed slows down, resulting in conduction delay and affecting the morphology of the P wave, PR interval, and QRS wave.
The 4-phase membrane potential of sinoatrial node pacing exhibits spontaneous depolarization, while the 4-phase membrane potential of ventricular myocytes remains stable.
This is a micrograph of a corn seed. This photo shows the seed coat, germ and endosperm at the same time.Magnify 100x
The chest electrode of ECG includes conventional chest lead, posterior wall lead and right ventricular lead. The placement of chest lead electrode shall comply with the specification.