Biology 449 - Animal Physiology September 15, 2008

Lecture 8 - Neurophysiology IV

Synaptic Transmission

Basic concepts

Electrical synapses

Chemical synapses

General structure and function

Ionotropic and metabotropic receptors

G-protein complex

Excitation vs. inhibition

Neuronal integration

Common neurotransmitters

Terms to Know

Electrical synapse
Gap junction

Chemical synapse
Presynaptic neuron
Postsynaptic neuron
Synaptic cleft
Synaptic vesicle
Synapsin
Docking protein
Neurotransmitter
Voltage-gated Ca2+ channel
Receptor protein

Acetylcholine (ACh)
Acetylcholinesterase (AChE)

Ionotropic receptor
Metabotropic receptor

G-protein complex

Excitation
Inhibition
Excitatory postsynaptic potential (epsp)
Inhibitory postsynaptic potential (ipsp)

Neuronal integration
Temporal summation
Spatial summation

Cholinergic receptors

Biogenic amines
Catecholamine
   Epinephrine
   Norepinephrine
   Dopamine
Adrenergic receptors
Serotonin

Amino acid neurotransmitters
Glutamate
Gamma-amino butyric acid (GABA)
Glycine

Neuroactive peptides (Neuropeptides)
Endorphin
Enkephalin

Nitrous oxide

Readings

Lecture 8:   Chapter 4, pages 122-137
Lecture 9:   Chapter 6, pages 196-202, 235-245