18 Questions
What is a synapse?
A gap between two neurons
What is the main function of neurotransmitters?
To transmit signals across the synapse
What is neuromodulation?
A way to regulate synaptic transmission
What is the difference between ionotropic and metabotropic receptors?
Ionotropic receptors are fast-acting, while metabotropic receptors are slow-acting
What is the role of SNARE proteins in synaptic transmission?
To release neurotransmitters from the presynaptic neuron
What is the function of botulinum toxin?
To inhibit the release of neurotransmitters
What is the function of GABA in synaptic transmission?
To inhibit the release of neurotransmitters
What is the role of neuropeptide Y (NPY) in synaptic transmission?
To regulate synaptic transmission through neuromodulators
What is the difference between EPSP and IPSP?
EPSP is excitatory, while IPSP is inhibitory
Where are synapses mostly located in a neuron?
On the neuronal dendrites
What is the role of synapses in neurons?
To communicate between each other or with target organs
What is the distance between presynaptic and postsynaptic neurons in a chemical synapse?
A distinct distance
What is the function of Ca++ channels in presynaptic neurons?
To release vesicles
What is the mode of transmission in a chemical synapse?
Unidirectional
Why does it take a longer time for an effective response to occur in a chemical synapse?
All of the above
What is the role of receptors in postsynaptic neurons?
To receive chemical messengers
What determines the direction of nervous signals in the nervous system?
The synapse
What is the function of vesicles in presynaptic neurons?
To contain chemical messengers
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