Exam 2: Biology and Psychology

When a trait is influenced by a combination of genes it is called

Phenothiazines, a group of drugs used to treat schizophrenia, block the action of the neurotransmitter

Neurotransmitters find their way to __________ and subsequently trigger firing of that neuron.

If you receive a sharp blow to the back of the head, you may "see stars." This is due to activation of the visual cortex neurons located in the temporal lobe.

In _______, the person lies in a powerful magnetic field and is exposed to radio waves that cause part of the brain to emit signals.

The axons of many neurons are wrapped in fatty tissue called

After a serious car accident, Dr. Murray tests the reflexes of an unconscious victim. Lack of response may indicate that he has injuries to his

Jeff is very aggressive and exhibits alcoholism and depression. More than likely, he has a

The positron emission tomography, or PET, scan is a method of brain study that involves a computer-generated image of brain activity by tracing the amount of

Dr. Kelly Earls, a neuropsychologist, was sitting next to an individual on a train who was exhibiting uncontrollable movement. Dr. Earls assumed that this individual had an imbalance in which of the following neurotransmitters?

In split-brain patients, surgeons

If a neurosurgeon stimulated a specific area of your brain and you felt heat in your left leg, it is likely he stimulated the

Describe the process of nerve impulse transmission from the point of an incoming impulse at the dendrite to the synapse.

You go to a neurologist because of headaches. You are told that the doctor would like to get some images of your brain and that the procedure involves a technique in which a narrow X-ray beam will be passed through your head. You know a little bit about brain study techniques and realize that the doctor is suggesting a(n)

Immediately after neurons fire, they are insensitive to messages from other neurons and will not fire. This is called the

Either a neuron fires or it does not. This is known as the

The polarization of a neuron results in a resting potential of about -70 millivolts. This is followed by depolarization, resulting in an action potential of +110 millivolts. This brings the membrane voltage to

Serotonin is primarily

When a section of a neuron is stimulated by neighboring neurons, the cell membrane becomes __________ to sodium ions.

The part of the brain responsible for thinking and language is the