Chapter 2 Test Flashcards
What is the circuit from sensory neuron to muscle response called?
Reflex arc
Sherrington inferred the presence of a gap between neurons based on ———.
Slower than predicted speed of conduction
What term is used for the cumulative effect of repeated stimulation over a brief period of time?
Temporal summation
The temporary hyperpolarization of a membrane is a(n) ————.
Inhibitory postsynaptic potential
What term describes periodic production of action potentials, even without synaptic input?
Spontaneous firing
Consider a wiring arrangement of neurons in which the two neurons a) and b) stimulate a third neuron (X). Neither neuron A nor B can stimulate neuron X on its own, but can excite neuron X in combination. This is an example of ———-.
Spatial summation
Hint
Temporal–> time
Spatial —> location
“Neurons are run by majority rule”. -Sebastian
In which neurotransmitter category does GABA belong?
Amino acids
Adenosine is an example of the ——— category of neurotransmitters.
Purine
Nitric oxide is an example of the ——- category of neurotransmitters.
Gas
The amount of ——- in the diet controls the amount of serotonin in the brain.
Tryptophan
——– refers to bursts of release of neurotransmitter from the presynaptic neuron.
Exocytosis
Most of the brain’s excitatory ionotropic synapses use the neurotransmitter———.
Glutamate
Neuropeptides are characterized by ———-.
Being released mostly from dendrites
Many hallucinogenic drugs are chemically similar to ——–.
Serotonin
Smoking cigarettes is rewarding in part because it triggers the release of ——-.
Dopamine
