Exam 3: The Human Brain

When a construction crew builds a house,the most basic building block of that structure is a brick.In the very same way,the most basic unit of communication in the human nervous system is the __________.

You come to an intersection here the traffic lights are all malfunctioning.In order to make sure that everyone gets where they are going,a police officer is directing traffic so that as cars come into the intersection they are sent to their correct destination safely.This is very similar to what the __________ does,as it directs sensory information to the correct part of the cerebral cortex.

Which parts of the body get the most "space" and attention in the primary somatosensory cortex of the parietal lobe of the cerebral cortex?

The cingulate cortex of the human brain is segmented into four different regions.Which of the following is one of those regions?

The electrical charge of the neuron during its __________ potential is negative,while the electrical charge of the neuron during its __________ potential is positive.

Why is it so difficult for many toxins and poisons to penetrate the blood-brain barrier?

You are planning on going to the supermarket to do your weekly shopping,and you have a lengthy list neatly printed on a sheet of paper.Because that paper doesn't fit into your pocket,you fold it over several times,and then off you go.When you get to the store and remove the list from your pocket,it has several creases (or folds)that remain.What is the name of the grooves in the brain that exist so that there is room in the skull for the entire brain to fit?

The brain is connected to the spinal nerves by the __________.

Both CT (computed tomography)and PET (positron emission tomography)neuroimaging techniques were developed in the 1970s.

The human blood-brain barrier is a type of filter that protects the brain from foreign invaders,including toxins and poisons.It is made,primarily,of what type of tissue?

Broca's area is found in the striate nucleus of the anterior parietal lobe.

The cerebral cortex is made up of two types of tissue - grey matter and black matter.

Tragically,Russell suffered a serious head injury in an automobile accident.The physicians informed Russell's wife that there was significant swelling occurring in his brain,and that there was a very real risk that as the brain swelled it would start to expand through the large opening in the skull where the spinal cord connected to the brain.What is the name of the opening that Russell's brain was at risk of expanding into?

As a result of the study of cybernetics,human beings have been able to create a computer that is far more complex than the human brain.

Any substance that tries to leave the human bloodstream and get to the brain must first pass through the ___________.

The ability of an amputee to develop the skills needed to control a prosthetic limb is an example of which characteristic of the human brain?

What is the best explanation for the stark similarities between the homunculus of the primary motor cortex and the homunculus of the primary somatosensory cortex?

If you look at a piece of rope,you will notice that it is really nothing more than a tightly clustered bundle of individual fibers.In the same way,a(n)__________ is a tightly clustered bundle of __________.

The human brain is arranged into bulges (or _________)and grooves (or __________)so that it can fit inside the human skull.

There are three lobes of the cerebral cortex,including the frontal,parietal,and occipital lobes.