Question 1

Sensations of fear, pleasure, and sexual arousal are produced by the

Accepted Answer

The answer of Sensations of fear, pleasure, and sexual arousal...

Question 2

The right cerebral hemisphere

Accepted Answer

The right cerebral hemisphere primarily controls movements and sensory input from the left side of the body.

Question 3

John was attending a party when he suddenly started eating food from some of the other guest's plates and using profane language. John's son promptly rushed his father to the hospital where it was discovered that he had suffered a stroke. Based on John's altered behaviors, which area of the brain was most likely damaged by the stroke?

Accepted Answer

The prefrontal cortex is responsible for regulating behavior, decision-making, and social conduct. Damage to this area can lead to impulsive actions and inappropriate social behavior, such as eating from others' plates and using profane language.

Question 4

People with damage to the hippocampus seem to be unable to remember recent events even though their memory of events before the damage remains intact. This seems to indicate that the hippocampus is involved in

Accepted Answer

The hippocampus is crucial for transferring information from short-term memory to long-term memory, which is why damage to it affects the ability to remember recent events while leaving older memories intact.

Question 5

The corpus callosum links the

Accepted Answer

The corpus callosum is a large bundle of nerve fibers that connects the right and left cerebral hemispheres, facilitating communication between them.

Question 6

The left and right hemispheres of the brain are connected through the _, a large band of axons.

Accepted Answer

The corpus callosum is a large band of axons that connects the left and right hemispheres of the brain, facilitating communication between them.

Question 7

You arrive ten minutes late for your final exam and immediately regret stopping for donuts, which feel like a dead weight in your stomach. Your heart is pounding and your palms are sweaty. What part of your nervous system is in control?

Accepted Answer

The sympathetic nervous system is responsible for the body's 'fight or flight' response, which includes increased heart rate and sweating in stressful situations.

Question 8

To survive the winter, some birds, such as the black- capped chickadee, must locate caches of seeds it buries each fall. Which region of the brain allows the birds to remember the exact locations of these stashes?

Accepted Answer

The hippocampus is the region of the brain associated with memory and spatial navigation, which helps birds like the black-capped chickadee remember the locations of their seed caches.

Question 9

Which region of the brain helps regulate body temperature, endocrine activity, and water balance?

Accepted Answer

The hypothalamus is responsible for regulating body temperature, endocrine activity, and water balance.

Question 10

Damage to the right frontal cortex may produce paralysis on the side of the body.

Accepted Answer

The right frontal cortex controls motor functions on the opposite side of the body, so damage to it can cause paralysis on the left side.

Question 11

It is possible that brain damage from a stroke or other injury could leave a person with the ability to comprehend written language but not spoken language (assume the person's hearing is fine). Which statement best explains this?

Accepted Answer

Different parts of the brain are involved in different aspects of language comprehension, such as Broca's area and Wernicke's area, which can be differentially affected by brain damage.

Question 12

The is a cluster of neurons that plays a role in wake- sleep cycles, muscle tone, emotions, and some reflexes.

Accepted Answer

The reticular formation is a network of neurons located in the brainstem that is involved in regulating wake-sleep cycles, muscle tone, emotions, and some reflexes.

Question 13

Visual information is processed in the

Accepted Answer

The occipital lobes are primarily responsible for processing visual information in the brain.

Question 14

Dendrites release neurotransmitters at synapses.

Accepted Answer

Dendrites receive neurotransmitters at synapses, but they do not release them. The release of neurotransmitters occurs at the axon terminal of the presynaptic neuron.

Question 15

If a patient has a particular memory problem in which he can recall old memories but cannot make new memories, what part of his brain is most likely damaged?

Accepted Answer

The hippocampus is crucial for forming new memories. Damage to this area can result in an inability to create new memories, a condition known as anterograde amnesia, while old memories remain intact.

Question 16

After an accident, a professional musician cannot associate any of the instruments he has played with the sounds they make. What part of his brain is most likely damaged?

Accepted Answer

The auditory association areas are responsible for processing and interpreting sounds, including associating sounds with their sources, such as musical instruments. Damage here would impair the ability to link instruments with their sounds.

Question 17

Alice's PET (positron emission tomography) scan shows a large red area in the occipital lobe when taken while Alice is looking at color images. Which of the following is TRUE about Alice's PET scan?

Accepted Answer

The large red area in the occipital lobe indicates that this region had the highest level of activity, as PET scans use color to represent levels of brain activity, with red typically indicating high activity.

Question 18

Nerves are groups of axons bundled together.

Accepted Answer

Nerves are indeed groups of axons bundled together, which transmit signals throughout the body.

Question 19

When you hear a loud noise, you immediately turn your head and direct your eyes toward the sound. Which region of the brain directs this reflexive movement of your eyes?

Accepted Answer

The answer of When you hear a loud noise, you...

Question 20

Sensory information processing as well as the direction of voluntary movements are carried out by the

Accepted Answer

The cerebrum is responsible for processing sensory information and directing voluntary movements.

Quiz 39: The Nervous System