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Q: neurotransmitters
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Discuss the difference between pre and postganglionic neurons of the sympathetic system
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- In the sympathetic division of the autonomic nervous system: Select one: The ratio between the number of postganglionic and preganglionic neurons is small. A single preganglionic neuron usually synapses with a single postganglionic neuron. An important functional characteristic is convergence of the preganglionic fibers. Preganglionic fibers are usually much longer than the postganglionic fibers. Activity of the neurons tends to have a more generalized and widespread effect on the body.Describe the basic pathways of sympathetic innervation from the spinal cord to the effector organs in the body periphery, the head, and the visceral organs.Describe the lengths of the preganglionic andpostganglionic neurons of the sympathetic division
- Describe the effect of sympathetic innervation on each effector organ, especially the heart, blood vessels, gastrointestinal tract, lungs, adrenal medulla, and external genitalia.Describe how the sympathetic and parasympathetic nervous system affects the following organs: heart, eyes, gastrointestinal systemDiscuss the functions of the sympathetic system
- Contrast the functions of the sympathetic and para-sympathetic divisions of the autonomic nervous system.Describe the sympathetic vasomotor tone: its origin, the neurotransmitter and receptor responsible for the effect. What is the physiological significance of the sympathetic tone?Sympathetic and parasympathetic preganglionic fibers release the neurotransmitter:
- Describe the sympathetic vasomotor tone: its origin, the neurotransmitter and receptor responsible for the effect.Compare and contrast the anatomical components of the sympathetic and parasympathetic divisions of the autonomic nervous system (ANS)NAME THE CHEMICALS INVOLVED BOTH IN SYMPATHETIC ANDPARASYMPATHETIC NERVOUS SYSTEM.