VPC 342 - Autonomic Nervous System Quiz

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What type of neurons carry nerve impulses from the CNS to the effector organs in the autonomic nervous system?

Somatic efferent neurons

Autonomic afferent neurons

Preganglionic neurons (correct)

Postganglionic neurons

What is the function of ganglia in the autonomic nervous system?

Synthesize neurotransmitters

Act as relay stations between preganglionic and postganglionic neurons (correct)

Trigger voluntary muscle contraction

Release hormones directly into the bloodstream

In the autonomic nervous system, what type of neurons innervate smooth muscles of the viscera, cardiac muscle, vasculature, and the exocrine glands?

Sympathetic neurons

Autonomic afferent neurons

Somatic efferent neurons

Preganglionic neurons (correct)

Which system sends signals to target tissues by varying the levels of blood-borne hormones?

Endocrine system Signup and view all the answers

Where do the preganglionic neurons of the sympathetic branch emerge from?

Thoracic and lumber regions of the spinal cord Signup and view all the answers

Which system exerts its influence by rapid transmission of electrical impulses over fibers that terminate at effector cells in the ANS?

Somatic nervous system Signup and view all the answers

Which effector organs are typically regulated by non-myelinated neurons?

Cardiac muscle Signup and view all the answers

Which part of the neuron is equivalent to preganglionic fibers in the innervation of the adrenal medulla?

Postganglionic fibers Signup and view all the answers

What is the main difference between sympathetic and parasympathetic postganglionic neurons in terms of length?

Sympathetic postganglionic neurons are longer Signup and view all the answers

What is a characteristic feature of the innervation pattern in most parasympathetic divisions?

Close or within effector organ ganglia Signup and view all the answers

VPC 342 - Autonomic Nervous System Quiz

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Questions and Answers

What type of neurons carry nerve impulses from the CNS to the effector organs in the autonomic nervous system?

What is the function of ganglia in the autonomic nervous system?

In the autonomic nervous system, what type of neurons innervate smooth muscles of the viscera, cardiac muscle, vasculature, and the exocrine glands?

Which system sends signals to target tissues by varying the levels of blood-borne hormones?

Where do the preganglionic neurons of the sympathetic branch emerge from?

Which system exerts its influence by rapid transmission of electrical impulses over fibers that terminate at effector cells in the ANS?

Which effector organs are typically regulated by non-myelinated neurons?

Which part of the neuron is equivalent to preganglionic fibers in the innervation of the adrenal medulla?

What is the main difference between sympathetic and parasympathetic postganglionic neurons in terms of length?

What is a characteristic feature of the innervation pattern in most parasympathetic divisions?

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