Exam 3: Synapses

Inhibitory synapses on a neuron:

After serotonin or one of the catecholamine transmitters stimulates the postsynaptic receptor, most of the transmitter molecules:

What determines the effect that a neurotransmitter has on the postsynaptic neuron?

The main advantage of a neuron releasing more than one neurotransmitter is that:

Most habit-forming drugs activate which type of synapse?

The presynaptic terminal stores high concentrations of neurotransmitter molecules in:

The neuron excretes neurotransmitter through its membrane by a process called:

List the major types of neurotransmitters.

Simultaneous weak stimuli at different locations produce a greater reflexive response than one of the stimuli by itself. What is this phenomenon called?

What determines whether a neuron has an action potential?

The tiny packets that contain neurotransmitters in the presynaptic neuron are called:

Only sensory neurons are found in a reflex arc.

Metabotropic synapses use a large variety of transmitters.

Exocytosis is the process by which neurotransmitters are:

At synapses, the cell that receives the message is called the presynaptic neuron.

At the synapse, amphetamine:

What does it mean to say that acetylcholine exerts ionotropic effects?

On the basis of what evidence were the properties of synapses first inferred?

A drug that blocks the effects of a neurotransmitter is a(n) ____; a drug that mimics or increases the effects is a(n) ____.

Which of the following statements regarding reflexes would Charles Sherrington most likely agree with?