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Which division of the autonomic nervous system is involved in secreting norepinephrine via adrenergic nerve fibers?

Sympathetic nervous system .


Which division of the autonomic nervous system is characterized by short preganglionic and long postganglionic fibers?

The parasympathetic nervous system has long preganglionic and short postganglionic fibers


Which division of the autonomic nervous system secretes acetylcholine via cholinergic nerve fibers?

The parasympathetic division of the autonomic nervous system secretes acetylcholine via cholinergic nerve fibers. This neurotransmitter is essential for transmitting signals between nerves and muscles, helping mediate various bodily functions such as digestion, heart rate regulation, and relaxation.


How do preganglionic fibers run?

Preganglionic fibers of the autonomic nervous system typically run from the central nervous system to an autonomic ganglion outside the central nervous system, where they synapse with postganglionic neurons. These fibers are part of the efferent pathway that transmits signals from the central nervous system to the peripheral organs and tissues.


Does the the autonomic nervous system typically have thin fibers with little or no myelination?

yes.


What branch of the spinal nerve contain autonomic fibers?

The autonomic fibers are contained within the ventral (anterior) root of the spinal nerve. These fibers are responsible for carrying signals to and from the autonomic nervous system, which controls involuntary bodily functions.


Does the sympathetic division secrete norepinephrine?

Yes, when stimulated the sympathetic postganglionic fibers release norepinepherine (20%) and epinepherine (80%).


What way is the somatic and autonomic nervous systems are similar?

I came on this to figure it out!


Preganglionic fibers of the parasympathetic division of the ANS synapse with the?

Preganglionic fibers of the parasympathetic division of the autonomic nervous system synapse with postganglionic neurons in the ganglia located near or within their target organs. This allows for the transmission of nerve impulses from the central nervous system to the specific organs to regulate functions like digestion, salivation, and smooth muscle contraction.


Is white rami exclusive to the sympathetic division of the ANS?

No, white rami are not exclusive to the sympathetic division of the autonomic nervous system (ANS). While they are primarily associated with the sympathetic division, specifically as pathways for preganglionic sympathetic fibers to enter the sympathetic ganglia, similar structures exist in the parasympathetic division. However, the term "white rami" typically refers to the myelinated preganglionic fibers of the sympathetic system.


What is a somatic and an autonomic nervous system action?

Somatic is when you move on purpose. Autonomic is when you react without thinking.


What nerve do the preganglionic fibers travel through?

The preganglionic fibers of the autonomic nervous system travel through the cranial nerves (in the head) and the spinal nerves (in the rest of the body). They synapse with postganglionic neurons in autonomic ganglia before reaching their target organs.