NSCI Exam 1 questions with correct answers

what is a neuronal membrane made of? Answer fatty molecules that have phosphorous groups attached signal transduction cascade can be initiated by: Answer neurotransmitters, ions, & secondary messengers there is an accumulation of _______ in the axon hillock because there is a lot of energy required for neurotransmitter release Answer mitochondria the membrane potential of a neuron refers to: Answer the distribution of ionic charge across the membrane when the neuron is at rest which cell is critical for forming the blood brain barrier? Answer astrocytes which cell is critical for wrapping myelin sheaths around axons in the brain? Answer oligodendrocytes some neurotransmitters are synthesized in the nuclear region of the neuron & packaged into ______ _______ where they are transported to the axon terminal Answer synaptic vesicles the equilibrium potential of an ion across the neuronal membrane refers to the: Answer potential at which a specific ion has no net flow across the neuronal membrane