Exam 2: Structure and Function of the Nervous System

If the sum of the excitatory postsynaptic potentials (EPSPs) causes a postsynaptic neuron to reach its threshold, then the postsynaptic neuron will generate an action potential.

Neurons in two different regions of Brodmann's cytoarchitectonic map always

Parts of the brain where metabolic activity is relatively high are characterized by

The primary reason why neurons are refractory for a short period after firing action potentials, and the reason underlying the absolute refractory period, is that the

Dendrites, which are large treelike processes extending from a neuron, are said to be presynaptic.

A patient has great difficulty in maintaining his posture, walking, and coordinating his movements. His brain injuries probably involve the

This type of early cell line is the precursor to the cells that will compose the nervous system.

The temporal lobe is to the occipital lobe as ________ is to ________.

The difference between gray matter and white matter is that gray matter refers to ________, whereas white matter refers to ________.

Explain the concept of electrochemical equilibrium. How does this concept allow us to understand the transmembrane potentials in neurons?

All of the following terms refer to the same cortical region that processes visual input EXCEPT

Communication between the two hemispheres of the brain occurs mainly through the

The role of calcium ions (Ca²⁺) in synaptic transmission is to

Action potentials are electrical signals that are conducted down the axon of a neuron.

The cells in the brain that guide migrating neurons to their final locations are called

In which of the following diseases is myelin damaged or lost?

Describe the structure of a prototypical neuron. In your answer, provide definitions for the following terms: soma, axon, dendrite, myelin, and synapse.

The central sulcus is an anatomical landmark that separates the ________ lobe from the ________ lobe.

Hyperpolarization makes the inside of a cell more positive and more likely to generate an action potential.

____________________ refers to the process of rapid cell division that occurs early in development of the nervous system.