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Exam 3: Biopsychology

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Question 21

Multiple Choice

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________ is a neurotransmitter with roles in pleasure and pain modulation.

A) acetylcholine
B) beta-endorphin
C) GABA
D) norepinephrine

E) A) and C)
F) B) and C)

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Question 22

Multiple Choice

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A(n) ________ is the electrical signal that typically moves from the neuron's cell body down the axon to the axon terminals.

A) action potential
B) depolarization
C) hyperpolarization
D) threshold of excitation

E) C) and D)
F) A) and D)

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Question 23

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Ainsley is participating in a study that aims to determine whether the occipital cortex becomes more active in response to moving versus stationary stimuli. When she arrives at the lab, she ingests a "tracer" and then enters the scanning machine. What type of brain imaging is most likely being conducted in this study?

Human eggs and sperm each contain 23 ________, which are composed of long strands of ________.

The ________ nervous system is responsible for responses such as pupil dilation, increased heart rate, and increased respiration.

Which one of the following processes does not occur to excess neurotransmitters in the synapse?

________ asserts that our genes set the boundaries within which we can operate, and our environment interacts with our genes to determine where within those boundaries we will fall.

The somatosensory cortex is responsible for processing ________.

Elaina has been diagnosed with a small brain tumor. She first went to see her doctor after experiencing symptoms such as feeling very cold, almost fainting, a reduced appetite, and reduced sexual desire. Which of the following structures is her tumor most likely affecting?

In a resting state, sodium (Na⁺) is at a higher concentration outside the cell and potassium (K⁺) is more concentrated inside the cell. During an action potential, the sodium levels ________ inside the cell.

What are two neurotransmitters involved in regulating mood and sleep?

Wendy's mother has blue eyes and her father has brown eyes. The allele for brown eye color is dominant (B) to the allele for blue eye color (b) , but Wendy has blue eyes. Therefore, Wendy's ________ must be ________ and her father's must be Bb.

The myelin sheath is made from ________.

Sensory and motor neurons of the ________ nervous system are associated with activities traditionally thought of as conscious or voluntary.

The ________ is the difference in charge between the intracellular and extracellular space of a neuron.

One example of ________ is the differences between hemispheres in the areas underlying language function.

Gyri and sulci are the ________ and ________, respectively, which characterize the surface of the human brain.

The space between two neurons is called the ________.

In which lobes of the brain are the motor cortex and somatosensory cortex located? (hint: there are two different answers!)

Which of the following is not a part sympathetic activation during the fight or flight response?