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Which of the following statements about the autonomic nervous system is false?
- a)It controls the internal organs
- b)It functions in a voluntary Mann
- c)It is responsible for the “fight or flight” response
- d)Each impulse travels through two motor neurons and one ganglion.
Correct answer is option 'B'. Can you explain this answer?
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Which of the following statements about the autonomic nervous system i...
Autonomic Nervous System
The autonomic nervous system (ANS) is a part of the peripheral nervous system that controls involuntary actions such as heart rate, digestion, and breathing. It has two divisions: the sympathetic division and the parasympathetic division.
False Statement
Option B states that the ANS functions in a voluntary manner, which is false.
Explanation
- The ANS controls the internal organs: The ANS regulates the activity of internal organs such as the heart, lungs, stomach, and intestines. It also controls glandular functions such as the release of hormones.
- It is responsible for the "fight or flight" response: The sympathetic division of the ANS prepares the body for emergencies by increasing heart rate, respiration, and blood pressure. It also causes the release of stress hormones such as adrenaline.
- Each impulse travels through two motor neurons and one ganglion: The ANS is made up of two neurons that connect the central nervous system (CNS) to the effector organs. The first neuron, called the preganglionic neuron, synapses with the second neuron, called the postganglionic neuron, at a ganglion. The postganglionic neuron then innervates the target organ.
- It functions in a voluntary manner: This is the false statement. The ANS controls involuntary actions that are not under conscious control. For example, we cannot consciously regulate our heart rate or digestion.
Conclusion
The correct option is B, which is false. The ANS functions in an involuntary manner and is not under conscious control.
The autonomic nervous system (ANS) is a part of the peripheral nervous system that controls involuntary actions such as heart rate, digestion, and breathing. It has two divisions: the sympathetic division and the parasympathetic division.
False Statement
Option B states that the ANS functions in a voluntary manner, which is false.
Explanation
- The ANS controls the internal organs: The ANS regulates the activity of internal organs such as the heart, lungs, stomach, and intestines. It also controls glandular functions such as the release of hormones.
- It is responsible for the "fight or flight" response: The sympathetic division of the ANS prepares the body for emergencies by increasing heart rate, respiration, and blood pressure. It also causes the release of stress hormones such as adrenaline.
- Each impulse travels through two motor neurons and one ganglion: The ANS is made up of two neurons that connect the central nervous system (CNS) to the effector organs. The first neuron, called the preganglionic neuron, synapses with the second neuron, called the postganglionic neuron, at a ganglion. The postganglionic neuron then innervates the target organ.
- It functions in a voluntary manner: This is the false statement. The ANS controls involuntary actions that are not under conscious control. For example, we cannot consciously regulate our heart rate or digestion.
Conclusion
The correct option is B, which is false. The ANS functions in an involuntary manner and is not under conscious control.
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Which of the following statements about the autonomic nervous system is false?a)It controls the internal organsb)It functions in a voluntary Mannc)It is responsible for the “fight or flight” responsed)Each impulse travels through two motor neurons and one ganglion.Correct answer is option 'B'. Can you explain this answer?
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