Neuro Terminology

• axon & soma
• axon & dendrite
• axon & dendritic spine
• axon & axon
• dendrite & dendrite
• soma & soma

pre- and postsynaptic processes are contiguous so stimulus can pass directly from one cell to next (no chemical mediation required)

• asymmetrical
• symmetrical

thicker postsynaptic membrane density of protein material

pre- and postsynaptic membrane densities are same thickness

stimulus requires chemical carrier to bridge gap between pre- and postsynaptic structures

located in presynaptic terminals. variety of shapes and sizes associated with specific transmitters

provide energy for release of NT into synaptic cleft

increase SA of neurone, collect afferent info

projections of dendrites that receive incoming impulses, extremely  plastic

separates cell body and axon

side branches of axons that help bring info to several parts of NS simultaneously

found at terminal ends of axons and transmit nerve impulses from neuron to neuron, primary means of intercommunication in NS

branching pattern of dendrites: first-order segment (few spines), second order segment, third order segment. spines become more numerous and then decrease again as become more peripheral