What is one of the important cations for action potentials.
100
Synaptic cleft.
What is the name of the gap that exists between the axon terminal of the "upstream" neuron and the dendrite of the "downstream" neuron?
100
Spine and brain.
What is the central nervous system?
100
Location of nucleus in a neuron.
What is the cell body?
100
Serotonin, dopamine, GABA, acetylcholine, norepinephrine, etc.
What are examples of neurotransmitters?
200
Voltage-gated ion channel.
What is the name of an embedded protein that opens when electrical potential on the inside of the cell membrane shifts (due to the presence of cations on the inside of the cell)?
200
Calcium ions.
What is the cation that is ultimately responsible for eliciting a release of nt's into the synaptic cleft?
200
Detects environment, both internal and external.
What is the sensory NS?
200
Recieves nt's.
What is the dendrite?
200
Convergence.
What is the name of a neuronal pool where several neurons converge into one or just a few neurons?
300
K+
What is the cation that is concentrated IN the neuron during resting potential?
300
NT vesicle.
What is the name of the double-membraned package in the axon terminal that contains the neurotransmitters?
300
Efferent.
What is the name of nervous pathways that move away from the CNS?
300
Most of the length of the typical neuron.
What is the axon?
300
"Spinal thinking."
What is a reflex arc (where the appropriate reaction takes place before the message has reached the brain)?
400
-70mV
What is the electrical potential on the inside of the cell during resting potential?
400
Snare proteins.
What is the name of the protein that tugs the vesicle to the surface of the axon terminal when exposed to enough Ca, thereby causing a release of nt into the synaptic cleft?
400
Somatic NS.
What is the name of the NS responsible for voluntary actions in the body.
400
Moves ions against [gradient].
What is an embedded ion pump, such as the one that moves Na/K.
400
Meninges.
What is the name of the connective tissue that cushions and defends the outer layers of the CNS?
500
Myelin
What is the fatty substance on the outside of the axon that speeds the transmission rate of electrical signals via insulation (lowering resistance)?
500
Neurotransmitter used for contraction of muscle fibers.
What is acetylcholine?
500
Only neuron type in the CNS.
What is an interneuron?
500
Nodes of Ranvier?
What is the name of the gaps between clumps of myelin along a myelinated axon?