Mastering the Autonomic Nervous System

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Which of the following receptors are activated by muscarine, a toadstool poison?

Beta receptors

Nicotinic receptors

Muscarinic receptors (correct)

Alpha receptors

Which of the following receptors are ligand-gated ion channels?

Nicotinic receptors (correct)

Alpha receptors

Beta receptors

Muscarinic receptors

Which of the following receptors are activated by nicotine?

Muscarinic receptors

Beta receptors

Nicotinic receptors (correct)

Alpha receptors

Which of the following receptors use a G protein signaling mechanism?

Muscarinic receptors Signup and view all the answers

Which 2 receptors are activated by acetylcholine?

Muscarinic receptors and Nicotinic receptors Signup and view all the answers

Which of the following receptors are linked to a different G protein?

Beta receptors Signup and view all the answers

Which of the following receptors are primarily activated by norepinephrine (NE)?

Alpha receptors Signup and view all the answers

Which of the following receptors are equally activated by epinephrine (Epi) and norepinephrine (NE)?

Beta receptors Signup and view all the answers

Which of the following receptors have a greater effect on stimulating the heart?

Beta receptors Signup and view all the answers

Which of the following receptors have a greater effect on constricting blood vessels?

Alpha receptors Signup and view all the answers

Which neurotransmitter is primarily secreted by cholinergic fibers in the autonomic nervous system?

Acetylcholine (ACh) Signup and view all the answers

What percentage of all parasympathetic nerve fibers are found in the vagus nerves?

75% Signup and view all the answers

Which branch of the autonomic nervous system primarily innervates the airways of the lungs?

Parasympathetic nervous system Signup and view all the answers

Which type of nerve fibers secrete norepinephrine (NE) in the autonomic nervous system?

Adrenergic fibers Signup and view all the answers

Which cranial nerves of the parasympathetic nervous system have interruptions in their preganglionic fibers?

III, VII, and IX Signup and view all the answers

Which neurotransmitter is primarily secreted by most postganglionic fibers in the parasympathetic nervous system?

Acetylcholine (ACh) Signup and view all the answers

Which neurotransmitter is primarily secreted by most postganglionic fibers in the sympathetic nervous system?

Norepinephrine (NE) Signup and view all the answers

Which type of nerve fibers are present in both the sympathetic and parasympathetic nervous systems?

Cholinergic fibers Signup and view all the answers

Which branch of the autonomic nervous system primarily secretes acetylcholine (ACh)?

Parasympathetic nervous system Signup and view all the answers

Which branch of the autonomic nervous system primarily secretes norepinephrine (NE)?

Sympathetic nervous system Signup and view all the answers

Mastering the Autonomic Nervous System

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Questions and Answers

Which of the following receptors are activated by muscarine, a toadstool poison?

Which of the following receptors are ligand-gated ion channels?

Which of the following receptors are activated by nicotine?

Which of the following receptors use a G protein signaling mechanism?

Which 2 receptors are activated by acetylcholine?

Which of the following receptors are linked to a different G protein?

Which of the following receptors are primarily activated by norepinephrine (NE)?

Which of the following receptors are equally activated by epinephrine (Epi) and norepinephrine (NE)?

Which of the following receptors have a greater effect on stimulating the heart?

Which of the following receptors have a greater effect on constricting blood vessels?

Which neurotransmitter is primarily secreted by cholinergic fibers in the autonomic nervous system?

What percentage of all parasympathetic nerve fibers are found in the vagus nerves?

Which branch of the autonomic nervous system primarily innervates the airways of the lungs?

Which type of nerve fibers secrete norepinephrine (NE) in the autonomic nervous system?

Which cranial nerves of the parasympathetic nervous system have interruptions in their preganglionic fibers?

Which neurotransmitter is primarily secreted by most postganglionic fibers in the parasympathetic nervous system?

Which neurotransmitter is primarily secreted by most postganglionic fibers in the sympathetic nervous system?

Which type of nerve fibers are present in both the sympathetic and parasympathetic nervous systems?

Which branch of the autonomic nervous system primarily secretes acetylcholine (ACh)?

Which branch of the autonomic nervous system primarily secretes norepinephrine (NE)?

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