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Ch. 12 The Central Nervous System
All textbooksErin C. Amerman 2nd EditionCh. 12 The Central Nervous SystemProblem 12.19a
Chapter 12, Problem 12.19a

Fill in the blanks: The two components of the CNS that are responsible for maintenance of homeostasis are the_____and the______. 

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Identify the main components of the Central Nervous System (CNS).
Understand the role of the brain in maintaining homeostasis, focusing on specific parts.
Recognize the function of the spinal cord in the CNS and its contribution to homeostasis.
Determine which parts of the brain are directly involved in regulating homeostasis.
Fill in the blanks with the identified components of the CNS responsible for homeostasis.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Central Nervous System (CNS)

The Central Nervous System (CNS) consists of the brain and spinal cord, serving as the primary control center for processing information and coordinating responses. It plays a crucial role in maintaining homeostasis by integrating sensory information and regulating bodily functions through neural signals.
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The Central Nervous System

Homeostasis

Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes. This involves various physiological processes that regulate temperature, pH, hydration, and other vital conditions, ensuring optimal functioning of cells and organs.
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Introduction to Homeostasis

Autonomic Nervous System (ANS)

The Autonomic Nervous System (ANS) is a component of the CNS that controls involuntary bodily functions, such as heart rate, digestion, and respiratory rate. It is divided into the sympathetic and parasympathetic systems, which work together to maintain homeostasis by responding to stress and promoting relaxation.
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Somatic vs. Autonomic Nervous System
Related Practice
Textbook Question

Mark the following statements on the role of the brain in movement as true or false. If a statement is false, correct it to make a true statement. 



b. The cerebellum monitors the initiation of movement but does not monitor ongoing movements. 

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Textbook Question

Mark the following statements on the role of the brain in movement as true or false. If a statement is false, correct it to make a true statement. 


c. The basal nuclei inhibit inappropriate movements and are required for the initiation of movement. 

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Textbook Question

Mark the following statements on the role of the brain in movement as true or false. If a statement is false, correct it to make a true statement. 



d. The correction of motor error by the cerebellum can occur over the long term by motor learning.

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Textbook Question

Mark the following statements about the brain as true or false. If a statement is false, correct it to make a true statement.



a. Humans use only 10% of their brains.

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Textbook Question

Which of the following statements is false? 


a. The suprachiasmatic nucleus is often called the body's 'master clock.' 

b. Melatonin and the ventrolateral preoptic nucleus increase the activity of the reticular formation. 

c. A decrease in the activity of the reticular formation disconnects the thalamus from the cerebral cortex and decreases the level of consciousness. 

d. Orexins are neurotransmitters that stimulate the reticular formation.

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Textbook Question

How could you tell the difference between an injury that damaged the cerebellum and one that damaged the basal nuclei?

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