neurobiology

Glia

non-neuronal. Support and protection. Forms myelin

Neurons

Within cell communication- electrical eg action potential

Between shell communication- chemical eg NT

Neuronal circuits

Neurons connect to each other.

2 inhibitory + 1 excitatory = no action potential. Vice versa. But this depends on location on dendrite

Synapse

Chemical messengers (NT) released here.

Pre-synaptic terminal where NTs are released into synaptic cleft

Receptor molecules in post synaptic density. NTs bind here

EPSP

Make neuron more likely to fire AP.

Excitatory

Action potential

Typically runs from cell body along an axon to synapse

Neurotransmitters

Chemical messengers. From one neuron to the next at synapse level

Local action. Can be excitatory or inhibitory

Eg noradrenaline, dopamine, serotonin, acetylcholine, and GABA

Hormones

In blood

Testosterone, cortisol, adrenaline, noradrenaline