0
What else can I help you with?
Which nerves contain the most parasympathetic preganglionic fibers?
ciliary, pterygopalatine, otic, and submandibular.
What are the two nerves that carry the preganglionic axons to the parasympathetic ganglia?
The two nerves that carry preganglionic axons to the parasympathetic ganglia are the cranial nerves and the sacral spinal nerves. Specifically, cranial nerves III (oculomotor), VII (facial), IX (glossopharyngeal), and X (vagus) are involved. Additionally, the sacral spinal nerves S2 to S4 contribute to the pelvic splanchnic nerves, which also carry preganglionic parasympathetic fibers. These pathways play a crucial role in the parasympathetic division of the autonomic nervous system, facilitating various involuntary functions.
Which nerves contain the most parasympathetic preganglionic fibers a trigeminal b splanchnic c optic d vagus?
D. vagus. this is the largest Cranial nerve, carrying parasympathetic information to much of the body (ie. esophagus, GI tract, heart). parasympathetic fibers, unlike sympathetic fibers, do not synapse until they are pretty much on in or near the organ. So the vagus is made up of preganglionic parasympathetics.trigeminal contains somatic afferents, and somatic efferents. neither of these are visceral efferents (which could be para or sympathetic).wikipedia tells you correctly that splanchnic nerves are generally sympathetic autonomics, except for one spot.optic nerve is carrying Afferent sensory information Away from the eye.
Is mydriasis parasympathetic or sympathetic?
the parasympathetic fibers of the cranial nerve number three.
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
What does a pelvic splanchnic nerve contains?
Preganglionic parasympathetic fibers. In the Parasympathetic division, the preganglionic axons leave the ventral roots of the spinal cord and collectively form the pelvic splanchnic nerves.
The site of origin of the preganglionic fibers of the parasympathetic nervous system is?
brain stem and the sacral region of the cord
Does the gray rami communicans contain fibers of a preganglionic or postganglionic neurons?
could be preganglionic
A pelvic splanchnic nerve contains?
The pelvic splanchnic nerve contains parasympathetic fibers that regulate the function of pelvic organs, such as the bladder, rectum, and reproductive organs. These fibers are involved in controlling processes like urination, defecation, and sexual function.
Does the white rami communicans contain fibers of a preganglionic or postganglionic neurons?
Preganglionic because they are myelinated. FALSE
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.
Over 90 percent of all parasympathetic fibers are derived from what cranial nerve number?
X (Vagus Nerve)
