Rating Newest Oldest. Best Answer: Behind-the-scenes: When Star Trek creator Gene Roddenberry was asked about the NCC registry, he replied that there was no significance to the letters and numbers comprising the registry of the U.S.S. Enterprise.
Supraventricular Extrasystoles Supraventricular Extrasystoles - ECG Supraventricular extrasystole (SVES) is one of the most common abnormalities that is found in ECGs. The problem is caused by sinoatrial (SA) node itself or by other location in heart atria. The problem is premature emission of electric impulse that spreads throughout the atria and then it is transmitted to the ventricles.
Presynaptic neurons are the neurons that conduct the AP to release a neurotransmitter and they affect the postsynaptic neurons. What ALWAYS causes a neuron to release any neurotransmitter (whether it is excitatory or inhibitory) is an action potential.ontrast that with exitatory NTs: All excitatory neurotransmitters cause an opening of ligand-gated sodium ion channels. The inhibitory NT could also cause an opening up of ligand-gated Chloride Ion channels.