Unit 2 review

Researchers looking to create a drug to reduce the symptoms of Alzheimer's disease would most likely focus their efforts on which of the following neurotransmitters?

Acetylcholine

Which of the following is brain-imaging technique that produces the most detailed picture of brain structure?

MRI

The hypothesis that intelligence is in part inherited is best supported by the fact that the IQ correlation for

N/a

Which of the following would most likely result from an injury to the medulla?

a life-threatening disruption to heartbeat and breathing

Damage to the cerebellum would most likely result in which of the following problems?

a loss in motor coordination

Reuptake of a neurotransmitter refers to

absorption of the neurotransmitter into the terminal buttons of the sending neuron

Which of the following is reduced during a fight-or-flight reaction?

blood flow

Caffeine and nicotine are in the same class as which of the following drugs?

cociane

In adult humans, which of the following is typically true of REM sleep?

coorelated to dreams

Activation of the parasympathetic nervous system results in which of the following?

decrease in heart rate

In terms of the effect on the central nervous system, alcohol is most accurately classified as which of the following types of drug?

depressant

Which of the following neurotransmitters has been linked to Parkinson's disease and schizophrenia?

dopamine

Most glands in the human body are a part of which system?

endocrine system

Painkilling substances produced by the brain are known as

endorphins

The primary effect of the myelin sheath is to

increase the velocity of conduction of the action potential along the axon

Dopamine, norepinephrine, and acetylcholine are all

neurotransmitters that excite

Which of the following is true of a neuron in the resting state?

potassium higher than sodium

The function of dendrites is to

receive incoming signals from other neurons

Immediately after firing, a neuron is incapable of responding to stimulation. This condition is referred to as

refractory phase

During the night, Alicia stops breathing repeatedly, frequently gasps for air, and snores loudly at regular intervals. Alicia is most likely suffering from which of the following conditions?

sleep apnea

A person with damage to Broca's area would most likely demonstrate which of the following symptoms?

speech production

Which part of the nervous system is most immediately activated by sudden fear?

sympathetic

Ben was enjoying a walk in the woods on a beautiful Saturday afternoon. As he went around a curve, he noticed a bear walking toward him. Immediately his pupils dilated, he began to perspire, and his heart accelerated. These changes are most closely related to the function of the

sympathetic nervous system

Neurotransmitters are typically stored in which of the following parts of a neuron?

the terminal buttons

An individual with damage to Wernicke's area is most likely to have difficulty

understanding language