Podcast
Questions and Answers
Where do the preganglionic neurons of the parasympathetic nervous system originate?
Where do the preganglionic neurons of the parasympathetic nervous system originate?
- Adrenal medulla
- Nuclei of cranial nerves (correct)
- Spinal cord segments T1–L3
- Thoracolumbar region
Where are the sympathetic ganglia located?
Where are the sympathetic ganglia located?
- Near the effector organs
- Adrenal medulla
- Paravertebral chain (correct)
- Spinal cord segments S2–S4
What is the adrenal medulla considered to be in relation to the sympathetic nervous system?
What is the adrenal medulla considered to be in relation to the sympathetic nervous system?
- Specialized ganglion (correct)
- Effector organ
- Postganglionic neurons
- Preganglionic neurons
Where are the parasympathetic ganglia located?
Where are the parasympathetic ganglia located?
Where do the preganglionic neurons of the sympathetic nervous system originate?
Where do the preganglionic neurons of the sympathetic nervous system originate?
What is the primary neurotransmitter released at all preganglionic endings in both the sympathetic and parasympathetic nervous systems?
What is the primary neurotransmitter released at all preganglionic endings in both the sympathetic and parasympathetic nervous systems?
In which type of autonomic ganglia do the preganglionic fibers relay to the head, neck, thorax, and some abdominal viscera?
In which type of autonomic ganglia do the preganglionic fibers relay to the head, neck, thorax, and some abdominal viscera?
How many postganglionic neurons can a single sympathetic preganglionic fiber synapse with?
How many postganglionic neurons can a single sympathetic preganglionic fiber synapse with?
Where are the sites of relay for preganglionic parasympathetic fibers located?
Where are the sites of relay for preganglionic parasympathetic fibers located?
What is the primary neurotransmitter secreted by chromaffin cells into the circulation?
What is the primary neurotransmitter secreted by chromaffin cells into the circulation?
