Of course, not everyone feels that way during a closed-bore MRI, but itâs something to be wary of just in case. What if You Donât Think a Closed-Bore MRI Will Work For You? Thereâs two major reasons that someone might feel like they cannot undergo an MRI in a closed-bore machine.
estivation n 1: (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period [syn: {aestivation}] 2: (botany) the arrangement of sepals and petals in a flower bud before it opens [syn: {aestivation}]
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.