NEUROANATOMY
Directions in neuroanatomy
Anatomical subdivisions nervous system
Functional subdivisions nervous system
Somatic (voluntary) Autonomic (involuntary)
Somatosensory Viscerosensory
Somatomotor Visceromotor
- Sympathetic - fight or flight
- Parasympathetic - rest digest
Ventricles
,Brain areas
Cerebral lobes
,Neurons
, Action potentials → travel along axon
Neurotransmitters → convey message at synapse
Post synaptic potential
- EPSP → Na+ flows channels open, influx → depolarization (+) → increased
likelihood of neurons firing
- IPSP → Cl- flows channels open, influx → hyperpolarization (-) → decreased
likelihood of neurons firing
Action potentials & neurotransmitter release
- Rising phase = Na+ flows intracellularly
- Falling phase = K+ flows extracellularly
- Ca+ is what assissts vesicles (with neurotransmitters) to move to synaptic cleft
Directions in neuroanatomy
Anatomical subdivisions nervous system
Functional subdivisions nervous system
Somatic (voluntary) Autonomic (involuntary)
Somatosensory Viscerosensory
Somatomotor Visceromotor
- Sympathetic - fight or flight
- Parasympathetic - rest digest
Ventricles
,Brain areas
Cerebral lobes
,Neurons
, Action potentials → travel along axon
Neurotransmitters → convey message at synapse
Post synaptic potential
- EPSP → Na+ flows channels open, influx → depolarization (+) → increased
likelihood of neurons firing
- IPSP → Cl- flows channels open, influx → hyperpolarization (-) → decreased
likelihood of neurons firing
Action potentials & neurotransmitter release
- Rising phase = Na+ flows intracellularly
- Falling phase = K+ flows extracellularly
- Ca+ is what assissts vesicles (with neurotransmitters) to move to synaptic cleft
