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Questions and Answers
Which of the following is NOT a characteristic of the autonomic nervous system (ANS) responses?
Which of the following is NOT a characteristic of the autonomic nervous system (ANS) responses?
- Reflex responses sensitive to emotional states
- Automatic nature without voluntary control
- Rapid onset within seconds
- Conscious control over regulation of visceral functions (correct)
Which of the following is a primary function of the sympathetic division of the ANS during the 'fight-or-flight' response?
Which of the following is a primary function of the sympathetic division of the ANS during the 'fight-or-flight' response?
- Stimulation of digestive processes
- Constriction of blood vessels
- Slowing of the heart rate
- Increased blood flow to skeletal muscles (correct)
Which of the following environmental stimuli would trigger a response from the parasympathetic division of the ANS?
Which of the following environmental stimuli would trigger a response from the parasympathetic division of the ANS?
- Encounter with a predator
- Entering a warm, comfortable environment (correct)
- Exposure to extreme heat
- Engaging in strenuous physical activity
The autonomic regulation of which physiological function is under voluntary control?
The autonomic regulation of which physiological function is under voluntary control?
Which of the following is a key role of the autonomic nervous system in maintaining homeostasis?
Which of the following is a key role of the autonomic nervous system in maintaining homeostasis?
What is the primary mechanism by which the autonomic nervous system responds to environmental stimuli like temperature changes?
What is the primary mechanism by which the autonomic nervous system responds to environmental stimuli like temperature changes?
What neurotransmitter is released by postganglionic parasympathetic fibers at effector organs?
What neurotransmitter is released by postganglionic parasympathetic fibers at effector organs?
Which neurotransmitter is inactivated by recapture by postganglionic nerve varicosities?
Which neurotransmitter is inactivated by recapture by postganglionic nerve varicosities?
Which type of receptors are found on the post synaptic membrane of both sympathetic and parasympathetic ganglia?
Which type of receptors are found on the post synaptic membrane of both sympathetic and parasympathetic ganglia?
What receptor type is excited by acetylcholine at ganglia?
What receptor type is excited by acetylcholine at ganglia?
Which neurotransmitter is released by sympathetic nerves to sweat glands?
Which neurotransmitter is released by sympathetic nerves to sweat glands?
What neurotransmitter is broken down by acetylcholinesterase in the parasympathetic system?
What neurotransmitter is broken down by acetylcholinesterase in the parasympathetic system?
Which of the following is NOT a function of the Autonomic Nervous System (ANS)?
Which of the following is NOT a function of the Autonomic Nervous System (ANS)?
Which division of the ANS is responsible for the constriction of the pupil in response to bright light?
Which division of the ANS is responsible for the constriction of the pupil in response to bright light?
Which of the following is NOT a function of the ANS in maintaining homeostasis?
Which of the following is NOT a function of the ANS in maintaining homeostasis?
Which division of the ANS is primarily responsible for the 'fight-or-flight' response?
Which division of the ANS is primarily responsible for the 'fight-or-flight' response?
Which of the following statements about the ANS is TRUE?
Which of the following statements about the ANS is TRUE?
Which of the following statements about the ANS is FALSE?
Which of the following statements about the ANS is FALSE?
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