2. NeuronsD. Classification of neuron :-AccordingtofunctionsensoryneuronX*motorneuroninterneuron--According to the neurotransmitter orneuromodulator released by the neuroncholinergic neuron: release acetylcholineaminergic neuron:release adrenalineornoradrenalineXpeptidergic neuron: release neuropeptidesaminoacidergicneuron:releaseaminoacid
D. Classification of neuron : -According to function sensory neuron motor neuron interneuron -According to the neurotransmitter or neuromodulator released by the neuron cholinergic neuron: release acetylcholine aminergic neuron: release adrenaline or noradrenaline peptidergic neuron: release neuropeptides amino acidergic neuron: release amino acid 2. Neurons
3.synapseA. Definition: A site of functional contact between neuronsor between neurons and other effector cellsB. Types: Electrical synapse = Gap junctionChemical synapse*C. Forms:*Axodendriticsynapsesare more often*AxospinoussynapsesAxosomaticsynapsesAxoaxonic synapsesDendrodendriticsynapses,etcD. Structure of chemical synapseE. Function of synapse
A. Definition: A site of functional contact between neurons or between neurons and other effector cells B. Types: Electrical synapse = Gap junction Chemical synapse* C. Forms: are more often 3. synapse Axodendritic synapses Axospinous synapses Axosomatic synapses Axoaxonic synapses Dendrodendritic synapses,etc. D. Structure of chemical synapse E. Function of synapse
3.synapseD. Structure of chemical synapseModel (EM)A chemical synapse consists ofthree parts5S-4ZOPresynaptic element店Synapticcleft(space)③Postsynaptic element
D. Structure of chemical synapse Silver impregnated staining Model (EM) Presynaptic element Synaptic cleft (space) Postsynaptic element A chemical synapse consists of three parts 3. synapse
3.synapseD.Structure of chemical synapseOPresynapticelementLM: synaptic boutonEM:Presynapticmembrane+ Synaptic vesicles (membrane-coated)8-Clearvesicles(acetylcholine)6--Dense-corevesicles (catecholamine)+Synapsin--aprotein links thevesicles to cytoskeleton
LM: synaptic bouton -Clear vesicles (acetylcholine) -Dense-core vesicles (catecholamine) Synaptic vesicles (membrane-coated) Presynaptic membrane Presynaptic element D. Structure of chemical synapse 3. synapse EM: Synapsin -a protein links the vesicles to cytoskeleton
3.synapseD.Structure of chemical synapseSynapticcleft (space)* Position:--between the presynaptic and the福postsynaptic elementM国 Contents:2--Some proteins and filaments
Synaptic cleft (space) Position: -between the presynaptic and the postsynaptic element Contents: -Some proteins and filaments D. Structure of chemical synapse 3. synapse