Vertebrate striated muscle contraction is controlled (regulated) by the action of the proteins troponin and tropomyosin on the actin filaments. Nervous stimulation causes a depolarisation of the muscle membrane (sarcolemma) which triggers the release of calcium ions from the sarcoplasmic reticulum.
n. 1  Abnormally fast or deep respiration, which results in the loss of carbon dioxide from the blood, thereby causing a fall in blood pressure, tingling of the extremities, and sometimes fainting.
Treato found 558 discussions about Shortness of Breath and Irregular Heartbeat on the web. Cardiac dysrhythmia (also known as arrhythmia and irregular heartbeat) is a term for any of a large and heterogeneous grou... Dyspnea ( also dyspnoea Latin language: dyspnoea Greek language: , d spnoia), shortness of breath ...