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Human Physiology Lec-5: Synaptic Transmission and Neural Integration

10 Questions

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Human Physiology Lec-5: Synaptic Transmission and Neural Integration

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Questions and Answers

What mechanism causes the release of neurotransmitter from the synaptic vesicles into the synaptic cleft?

Re-uptake

Enzymatic destruction

Diffusion

Exocytosis (correct)

What stops the influx of Ca++ at the axon terminal after the release of neurotransmitter?

Closure of Ca++ channels (correct)

Diffusion of Ca++ into the synaptic cleft

Enzymatic destruction of Ca++

Re-uptake of Ca++ by postsynaptic neuron

What is the term for a synapse between a neuron and an effector organ such as a muscle or a gland?

Neuroeffector junction (correct)

Axodendritic synapse

Axoaxonic synapse

Axosomatic synapse

What is the term for a ligand that binds to a receptor protein?

Neurotransmitter Signup and view all the answers

Which process for neurotransmitter removal involves the neurotransmitter simply diffusing away?

Diffusion Signup and view all the answers

What is the traditional usage of the term 'synapse' in physiology?

The junction between a neuron and a target cell Signup and view all the answers

Which type of synapse is responsible for allowing ions or secondary messengers to flow from one cell to another?

Electrical synapse Signup and view all the answers

At which type of synapse does one neuron secrete a neurotransmitter into extracellular space upon the arrival of an action potential?

Chemical synapse Signup and view all the answers

Which type of synapse is important in the development of the nervous system according to recent studies?

Gap junctions Signup and view all the answers

Which type of synapse allows a neuron to pass an electrical or chemical signal to another cell?

Synaptic transmission synapse Signup and view all the answers