Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 27, Problem 16PS
Much of what we know about brain function has come from rare individuals whose brains were altered as the result of surgery, accidents, or disease. Suppose a patient has brain surgery on the cerebral cortex, and immediately following the surgery, she appears normal. As she recovers over the next few days, she experiences some unusual things, such as being unable to name objects while looking at them with one eye covered. Her sensory perception seems normal except for when she tries to integrate information. What brain structure might have been damaged during the surgery that would account for these symptoms? Justify your answer.
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Chapter 27 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 27 - A neuron ends in many branches, each with a...Ch. 27 - Prob. 2SQCh. 27 - Your nervous system can be divided into two broad...Ch. 27 - Prob. 4SQCh. 27 - Prob. 5SQCh. 27 - Prob. 6SQCh. 27 - How is an action potential different from a...Ch. 27 - For each of the following senses in humans,...Ch. 27 - Mr. Johnson is becoming slightly deaf. To test his...Ch. 27 - Prob. 10SQ
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- Outline the components of the brain from the least specialized, oldest evolutionary level to the newest, most specialized level.arrow_forwardWatch this video (http://openstaxcollege.org/l/neuroexam) that provides a demonstration of the neurological exam—a series of tests that can be performed rapidly when a patient is initially brought into an emergency department. The exam can be repeated on a regular basis to keep a record of how and if neurological function changes over time. In what order were the sections of the neurological exam tested in this video, and which section seemed to be left out?arrow_forwardWatch the video (http://openstaxcollege.org/l/2brains) titled The Man With Two Brains to see the neuroscientist Michael Gazzaniga introduce a patient he has worked with for years who has had his corpus callosum cut, separating his two cerebral hemispheres. A few tests are run to demonstrate how this manifests in tests of cerebral function. Unlike normal people, this patient can perform two independent tasks at the same time because the lines of communication between the right and left sides of his brain have been removed. Whereas a person with an intact corpus callosum cannot overcome the dominance of one hemisphere over the other, this patient can. If the left cerebral hemisphere is dominant in the majority of people, why would right-handedness be most common?arrow_forward
- Damage to specific regions of the cerebral cortex, such as through a stroke, can result in specific losses of function. What functions would likely be lost by a stroke in the temporal lobe?arrow_forwardIf your brain were removed, replaced by another, and moved to a new body, which would you consider to be yourself— your old body with the new brain, or your new body with the old brain?arrow_forwardWho discovered that after damage to an area of the left temporal lobe (Wernicke’s area), people could speak only meaningless sentences?arrow_forward
- Is there a limit or maximum capacity for our brain to grow?arrow_forwardIf a patient with brain damage seems to have issues with planning, impaired language skills, and controlling their emotions, which of the following structures of the brain is most likely damaged? cerebellum cerebrum hypothalamus thalamus medullaarrow_forwardThe concept of “labeled lines” states that each nerve input to the brain reports only a particular type of information, such as auditory versus visual information. Does this happen because the nature of the nerve fibers conveying the information is unique or because the nature of the brain location where the signals are received is unique? How do you know this?arrow_forward
- While taking a written exam, a student reads the question and must write the answer. What part of the brain is involved? What is the neural pathway, from vision to handwriting the response?arrow_forwardWhich of the following would most likely result in the observation of relatively large and synchronous brainwaves (called alpha waves)? an electrode is placed over the auditory cortex while the person is relaxed an electrode is placed over the visual cortex while the person looks at relaxing scenes an electrode is placed over the auditory cortex while someone is speaking with the person an electrode is placed over the auditory cortex while the room is quiet 2. In your sensory systems, the first place in your cerebral cortex where information is processed is referred to as a __________ area. association secondardy primary toparrow_forwarddamage to the brain will always have lasting effects, but the timing of the damage is important. At what times of life is brain damage more or less likely to have significant long-term effects? Describe some of the ways in which the brain can recover function following brain damage.arrow_forward
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