Rapid but regular contractions are called tachysystole. This term is often used in the context of labor, referring to a situation where contractions occur more frequently than normal, typically defined as more than five contractions in a 10-minute period. Tachysystole can impact fetal well-being and may require medical intervention if it leads to distress.
The medical term for rapid but regular atrial or ventricular contractions is tachycardia.
Rapid and dangerously uncoordinated ventricular contractions is called ventricular fibrillation, or v-fib. During v-fib, the ventricle is not pumping blood to the body, and thus v-fib is known as a lethal dysrhythmia.
it occurs by the regular contractions of the heart
Fibrillation
fibrillation
Very rapid contractions or twitching of small muscle fibers in the heart often need to be stopped. A mechanism that does this is called a defibrillator. The act itself is call a defibrillation. Many times the top chambers of the heart go into fibrillation and are not as severe as the ones that occur in the bottom chambers called the ventricles. These must be stopped as quickly as possible.
The strongest indication that contractions are occurring in association with true labor is that the contractions begin to occur at regular intervals. This is contrary to Braxton-Hicks contractions, which are spontaneous, random uterine contractions that do not occur with actual labor.
Contraction Band Necrosis
These are characterized by rapid muscular contractions accompanied with jerks in facial and pelvic muscles.
Ventricular fibrillation is the term for rapid irregular contractions of the ventricles. Because the contractions are unsynchronized and random, the ventricles do not pump effectively. The patient may have no palpable pulse, and the condition can be fatal.
Peristalsis is the name of the regular contractions of the muscularis that push food through the entire gastrointestinal tract. These contractions help move food along the digestive system.
fast Glycolytic