Nerves
These carry nerve impulses towards the cell body.
Dendrites
The CNS consists of these 2 sections.
Brain & spinal cord
The peripheral nervous system is divided into these 2 subgroups.
Autonomic & Somatic Nervous System
Before a postsynaptic neuron can fire, this must happen.
Must reach threshold voltage
These are the 3 parts of a neuron.
Axon, cell body & dendrite
This makes nerve fibers white in appearance.
Myelin Sheath or Schwann cells
This is how gray matter is different from white matter.
White matter contain long fibers of interneurons which are myelinated
The parasympathetic system is involved in this.
Return body to its relaxed state
This ion causes the synaptic vesicles to fuse with the presynaptic membrane
Ca2+
Oxytocin is produced here.
Hypothalamus
During the repolarization phase, this is happening to the neuron.
K+ channels open to allow K+ out of the neuron
This transmits information between the left and right side of the brain.
Corpus callosum
A ganglion contains mostly this.
Cell bodies
These neurotransmitters are also hormones.
Epinephrine (adrenaline) & norepinephrine
This is why an action potential can only propagate in one direction.
Na+ and K+ channels deactivate for a brief time after it has been opened
This happens during the Recovery Phase.
Na+/K+ pump returns the ions across the axomembrane
This part of the brain controls balance complex muscle movements.
Cerebellum
This hormone is important in the “fight or flight” reaction.
Noradrenalin or adrenalin
These are 2 types of neurotransmitters (name one excitatory & one inhibitory).
Excitatory: acetylcholine, adrenalin, noradrenalin & serotonin
Inhibitory: GABA, glycine & serotonin
This is how stimulants work.
Enhance excitatory neurotransmitters or block inhibitory neurotransmitters
Explain the 3 types of neurons and their functions.
Sensory, motor & interneuron
Check notes for function
This is how the left and right hemisphere differs.
Left: logical side, analytical, planning, measuring, “speaks but cannot know”
Right: intuitive side, feeling, creates images, “knows but cannot speak”
This neurotransmitter is important in the parasympathetic nervous system.
Acetylcholine
These are 3 methods of inhibiting neurotransmitters in the synaptic cleft.
Prevent its release, break it down, & block receptors
This is how the reflex arc works.
Receptors - sensory neuron - interneurons (spinal cord) - motor neurons - effector