Neural Pathways Flashcards
What are neural pathways? What is the function?
Series or interconnected neurons via nerve fibers (aka tracts). Function to allow for communication between brain regions
What is the difference between nerves and tracts?
Both axon bundles but nerve in PNS and tract in CNS
What is the difference between ganglia and nuclei?
Both groups of neuron cell bodies. Ganglia in PNS and nuclei in CNS
What is a connectome?
Map of neural connections in nervous system
What are neurotransmitter systems?
Some NT released widely in brain or specialized
Do neurons release only one NT?
Some neurons have co-localization or co release. Multiple NT
Where does the cholinergic NT come from?
Basal forebrain
What are the two types of NT?
Excitatory (glutamate is most concentrated)
Inhibitory (GABA is most concentrated)
Where are NT synthesized from?
Amino acids in diet
What are the three families of NT?
Gaseous, neuropeptides, small molecule (purines, amino acids, monoamines, acetylcholine)
Where ate NT stored?
In pre-synaptic terminal, vesicles released to synaptic cleft to initiate action potential
