Exam 3: Cells of the Nervous System

If the neural membrane allowed sodium ions to move freely,the resting potential of a neuron would be approximately _________mV.

In this figure,threshold is measured at ____________________ mV,the peak of the action potential occurs at ____________________ mV,and the recording during the refractory period appears to go as low as ____________________ mV.

Your brain differentiates between a tap on your arm and a sharp slap on your arm by the

Compared with sodium channels involved with the action potential,potassium channels

Tetrodotoxin from pufferfish interferes with the formation of action potentials by blocking

Branches that serve as locations at which information is received from other neurons are known as

Microtubules are the largest type of fibers found in the neural cytoskeleton.

What determines the type of process used to terminate chemical communication at the synapse?

The resting potential of a typical neuron is about _________ mV.

Which type of glia may actually participate in neural communication?

Abnormalities involving which type of cytoskeleton fibers have been implicated in Alzheimer's disease?

Neurons that are specialized to receive information from the outside world are known as

Many common brain disorders,including stroke,may result in damage due to the release of glutamate by

The primary function(s)of the neurofilaments is (are)

The diameter of an axon is correlated with

Which of the following structures are typically found within the axon terminal?

The hyperpolarization observed following an action potential is the result of

Describe the structure and function of the microfilaments.

Prior to release,synaptic vesicles are

Action potentials only go in one direction,away from the cell body,because