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Autonomic Nervous System (ANS) Quiz: Somatic Reflex Arc and Neurotransmitters

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Autonomic Nervous System (ANS) Quiz: Somatic Reflex Arc and Neurotransmitters

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Questions and Answers

What is the primary function of the sympathetic postganglionic fibers in the spinal nerve pathway?

To transmit sensory information from the spinal cord

To regulate the autonomic nervous system

To synapse in prevertebral ganglia

To innervate neck, torso, and limb skin effectors (correct)

Which type of fibers arise from brain stem nuclei and exit the brain stem via cranial nerves III, VII, IX, and X?

Sympathetic preganglionic fibers

Parasympathetic preganglionic fibers (correct)

Adrenergic fibers

Cholinergic fibers

What is the difference between sympathetic and parasympathetic divisions in terms of their neurotransmitters?

Both sympathetic and parasympathetic use norepinephrine

Sympathetic uses acetylcholine, while parasympathetic uses norepinephrine

Sympathetic uses norepinephrine, while parasympathetic uses acetylcholine (correct)

Both sympathetic and parasympathetic use acetylcholine

What is the function of the terminal ganglia in the parasympathetic division?

To house postganglionic neurons Signup and view all the answers

What is the name of the nerves that form from the sympathetic chain ganglia in the sympathetic postganglionic fibers – splanchnic nerve pathway?

Splanchnic nerves Signup and view all the answers

Where do the preganglionic fibers of the sympathetic division arise from?

Thoracolumbar lateral gray horns Signup and view all the answers

What is the name of the ganglia where the sympathetic preganglionic fibers synapse in the sympathetic postganglionic fibers – spinal nerve pathway?

Sympathetic chain ganglia Signup and view all the answers

What is the primary function of the sympathetic division?

To stimulate the 'fight or flight' response Signup and view all the answers

Where do the postganglionic fibers of the sympathetic division – sympathetic nerve pathway innervate?

Head and face skin effectors, organs of cervical region and thoracic cavity Signup and view all the answers

What is the name of the pathway where the sympathetic preganglionic fibers synapse in prevertebral ganglia?

Splanchnic nerve pathway Signup and view all the answers