Exam 2: Communication Within the Nervous System

A drug that mimics the effects of a neurotransmitter is called a(n):

The release of neurotransmitter from axon terminals into the synaptic cleft depends on:

Which of the following neurotransmitters has been related to the reinforcing action of drugs of abuse?

Axons can be anywhere from ___ to more than ___ in length.

The change in electrical charge from -70mV to the peak of the action potential is due to ___ and the change in electrical charge from the peak of +30 or +40mV back to -70mV is due to___.

When an action potential is transmitted,there is a measurable flow of ions down the transmitting axon.

Theneurotransmitter fits into a very precisely shaped location on the postsynaptic neuron called a:

Electricity flowing in power lines drops in voltage over distance,requiring your power company to use transformers to boost the voltage.This loss over distance is similar to the behavior of ___ potentials.

Elizabeth was hit hard by the news of her mother's diagnosis with myasthenia gravis.Although a very serious and progressive disease,the good news is that her mother can be treated with drugs that ___ the action of ___.

As Shaniqua slowly lost motor function and suffered increasing sensory deficits,she could almost picture her ___ being destroyed by the ___.

Cone snail toxins are looking like promising new treatments for schizophrenia.

Explain the events that occur at a synapse,both in the presynaptic neuron and the postsynaptic neuron.

When you feel the lingering numbness of the "local" the dentist gave you,the biopsychology student knows the effects are due to the chemical anesthetic effects of:

Neurotransmitters that open ion channels do so by docking on ___.

Various toxins from snakes,scorpions,and fish are called ___ because of their sites of action.

Muscles contain ___ receptors.

Since neurons algebraically summate IPSPs and EPSPs to "decide" whether to fire,neurons have been referred to as:

Which of the following is an inhibitory neurotransmitter in the spinal cord and lower brain?

The term depolarization refers to:

About how many neurons are found in the human brain?