The S-A node
quarter note
arrythmyia
Arrhythmia is a problem with the rate or rhythm of the heartbeat of a person.
Poetic foot is the basic unit of measuring rhythm in poetry.
An abnormality in the rhythm of the heart beat is called arrhythmia. The cause of this can be little or nothing or can be very serious.
A skipped beat is a beat that is not in rhythm (the 2-second rhythm) whereas an accelerated heartbeat is that heartbeat that happens before the 2 seconds interval elapses, and both are a risk to the normal operation of the heart.
Rhythm
Atrial fibrillation or A-fib. I know this one from experience.
It is the variance in time between each heartbeat. ECG, and blood pressure tests are often used to measure the variance in the rhythm of the heart.
The basic rhythm of breathing is controlled by part of the brain called the Medulla.
This is an irregular cardiac rhythm due to a variation in the sinus rhythm -- the heartbeat usually increases during inhalation and decreases during exhalation. This condition is common in children and young adults.
Internal rhythm refers to the natural rhythm of our bodies, such as our heartbeat, breathing pattern, and sleep-wake cycle. These rhythms are regulated by our internal biological clocks and are crucial for maintaining our overall health and well-being. Examples include the circadian rhythm, which dictates our sleep patterns, and the cardiac rhythm, which controls our heart's beating.
An arrhythmia is an irregular heartbeat, which divides into two categories - tachycardia in which an adult's heartbeat averages above 100 beats per minute, and bradycardia - in which an adult's heartbeat averages below 60 beats per minute.