Podcast
Questions and Answers
What type of neurons carry nerve impulses from the CNS to the effector organs in the autonomic nervous system?
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?
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?
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?
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?
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 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 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?
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 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?
What is a characteristic feature of the innervation pattern in most parasympathetic divisions?
