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Ch. 14 The Autonomic Nervous System and Homeostasis
Amerman- Human Anatomy & Physiology 3e
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoAmerman 3rd EditionCh. 14 The Autonomic Nervous System and HomeostasisProblema 1
Capitolo 14, Problema 1

Which of the following best describes the basic function of the autonomic nervous system?
a. Controls the somatic nervous system
b. Controls automatic functions to maintain homeostasis
c. Detects somatic sensory information
d. All of the above

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Step 1: Begin by understanding the autonomic nervous system (ANS). The ANS is a division of the peripheral nervous system responsible for regulating involuntary physiological processes, such as heart rate, blood pressure, digestion, and respiratory rate.
Step 2: Recall the concept of homeostasis. Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes. The ANS plays a critical role in maintaining homeostasis by controlling automatic functions.
Step 3: Analyze the options provided in the question. Option (a) suggests the ANS controls the somatic nervous system, which is incorrect because the somatic nervous system is responsible for voluntary movements and is separate from the ANS. Option (c) suggests the ANS detects somatic sensory information, which is also incorrect because sensory information is processed by sensory neurons, not the ANS.
Step 4: Evaluate option (b). This option states that the ANS controls automatic functions to maintain homeostasis, which aligns with the primary role of the ANS. It regulates involuntary processes to ensure the body remains in balance.
Step 5: Consider option (d), which states 'All of the above.' Since options (a) and (c) are incorrect, option (d) cannot be correct. Therefore, the best description of the basic function of the ANS is option (b).

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Autonomic Nervous System (ANS)

The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiological functions, including heart rate, blood pressure, respiration, and digestion. It operates automatically, without conscious control, and is divided into the sympathetic and parasympathetic systems, which work together to maintain homeostasis.
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Somatic vs. Autonomic 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 that the body functions optimally. The autonomic nervous system plays a crucial role in achieving and maintaining homeostasis.
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Introduction to Homeostasis

Somatic Nervous System

The somatic nervous system is responsible for voluntary movements and the transmission of sensory information to the central nervous system. It controls skeletal muscles and mediates conscious sensations, such as touch and pain. In contrast to the autonomic nervous system, the somatic system requires conscious thought and is not involved in automatic bodily functions.
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Somatic vs. Autonomic Nervous System
Pratica correlata
Domanda del libro di testo

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

c. The visceral motor division is also known as the autonomic nervous system and maintains homeostasis of many physiological variables.

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Domanda del libro di testo

Regulation of heart rate, blood pressure, and digestive functions is carried out by the:

a. Somatic motor division of the peripheral nervous system.

b. Central nervous system.

c. Visceral sensory division of the peripheral nervous system.

d. Autonomic nervous system.

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Domanda del libro di testo

The sympathetic nervous system is also known as the ________ division because the cell bodies of its preganglionic neurons are located in the ________ .

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