14 Questions
What is the result of an excitatory postsynaptic potential (EPSP)?
Small local depolarization
What is the result of an inhibitory postsynaptic potential (IPSP)?
Small local hyperpolarization
How are EPSPs and IPSPs summed at the axon hillock?
Both spatially and temporally
What happens when an action potential travels down an axon to the axon terminal?
Voltage-gated calcium channels open and Ca2+ enters the axon terminal
What is the sequence of transmission at chemical synapses?
Voltage-gated calcium channels open and Ca2+ enters, then synaptic vesicles fuse with membrane and release transmitter into the cleft
What does calcium signal in the context of synaptic transmission?
Inhibition of neurotransmitter release from the presynaptic neuron
How does information transfer between neurons at a synapse?
By diffusion of neurotransmitters across the synaptic cleft
Which neurotransmitter is the most widespread inhibitory transmitter?
GABA
Which type of neurotransmitter serves as retrograde transmitter?
Gas neurotransmitters
What are the examples of amine neurotransmitters mentioned in the text?
Acetylcholine, dopamine, serotonin
What is the characteristic movement during a tonic-clonic seizure?
Slow and rhythmic contractions
Which type of seizure is characterized by generalized rhythmic brain activity without unusual muscle movements?
Absence seizures
What term was previously used to refer to absence seizures?
Petit Mal
What is the most common type of seizure in kids and teens?
Complex partial seizures
Explore the different types of neurotransmitters, including amino acid, peptide, amine, and gas neurotransmitters, and their respective functions. Learn about inhibitory and excitatory transmitters, as well as retrograde transmitters.
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