Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 9, Problem 1RQ
Summary Introduction
Introduction: The cerebral cortex functions as a combined center for sensory information and for a region of decision making for various types of motor output. The cerebral cortex is classified into three specialized areas: sensory areas, association areas, and motor areas.
Expert Solution & Answer
Answer to Problem 1RQ
Correct answer: “The ability of human brains to change circuit connections and function in response to sensory input and past experience is known as plasticity”.
Explanation of Solution
The neural connections in the part of the brain called cerebrum, similar to those in other parts of the nervous system reveal a definite degree of plasticity. For example, if one finger of an individual is lost, then the areas of sensory and motor cortex which are previously dedicated to regulating finger do not get slowed down. Alternatively, adjacent areas of the cortex increase their function and acquire those parts of the cortex which are in no more use by the finger that is lost.
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Students have asked these similar questions
19. On the diagram below
a. Label the three pictures as: DNA; polypeptide; or RNA.
b. Label the arrows as: translation or transcription/RNA processing.
c. Add the following details to the diagram.
Promoter region
TATA box
Transcription start site
Transcription terminator
Intron (A,B,C,D)
Exons (1,2,3,4,5)
Splice sites
5' cap
5' UTR (untranslated region)
3' poly A tail
3' UTR (untranslated region)
Translational start (AUG)
Translational stop (UGA, UAG, or UAA)
N and C ends of polypeptide
0000
Match the letter labels in the figure below to the terms. Some letter
labels are not used.
MNNNNNNIN
M
C
B
A
M
D
F
E
H
K
G
8
The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction?
2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe:
a) What molecule do you recommend for the trial. Why?
b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for?
3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale.
4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale.
Mutation 1
Mutation 2
Chapter 9 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 9.2 - Prob. 1CCCh. 9.3 - Name the four kinds of glial cells found in the...Ch. 9.3 - Prob. 3CCCh. 9.3 - Prob. 4CCCh. 9.3 - Prob. 5CCCh. 9.3 - Prob. 6CCCh. 9.3 - Prob. 7CCCh. 9.3 - Prob. 8CCCh. 9.3 - Prob. 9CCCh. 9.3 - In the late 1800s, the scientist Paul Ehrlich...
Ch. 9.3 - Prob. 11CCCh. 9.4 - Prob. 12CCCh. 9.4 - Prob. 13CCCh. 9.5 - Are the following white matter or gray matter? (a)...Ch. 9.5 - Using the information from Table 9.1, describe the...Ch. 9.5 - In anatomical directional terminology, the...Ch. 9.5 - Prob. 17CCCh. 9.5 - Prob. 18CCCh. 9.5 - Prob. 19CCCh. 9.5 - Prob. 20CCCh. 9.6 - Prob. 21CCCh. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - In vertebrates, the central nervous system is...Ch. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Prob. 8RQCh. 9 - Prob. 9RQCh. 9 - Prob. 10RQCh. 9 - Prob. 11RQCh. 9 - What does cerebral lateralization refer to? What...Ch. 9 - Match each of the following areas with its...Ch. 9 - Name the 12 cranial nerves in numerical order and...Ch. 9 - Name and define the two major phases of sleep. How...Ch. 9 - List several homeostatic reflexes and behaviors...Ch. 9 - Prob. 17RQCh. 9 - What are the broad categories of learning? Define...Ch. 9 - Prob. 19RQCh. 9 - Prob. 20RQCh. 9 - Prob. 21RQCh. 9 - What are the three brain systems that regulate...Ch. 9 - Explain the role of Wernickes and Brocas areas in...Ch. 9 - Compare and contrast the following concepts: a....Ch. 9 - What properties do motivational states have in...Ch. 9 - Prob. 26RQCh. 9 - Prob. 27RQCh. 9 - Prob. 28RQCh. 9 - Mr. Andersen, a stroke patient, experiences...Ch. 9 - Prob. 30RQCh. 9 - Prob. 31RQCh. 9 - Prob. 32RQCh. 9 - Prob. 33RQ
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