sympathetic fibers

The bladder receives motor innervation from both sympathetic fibers, most of which arise from the hypogastric plexuses and nerves, and parasympathetic fibers, which come from the pelvic splanchnic nerves and the inferior hypogastric plexus.

Enterogastric reflex inhibits vagal nuclei, activating sympathetic fibers causing the pyloric sphincter to tighten to prevent more food from entering, and inhibits local reflexes.

All carry sympathetic fibers except for the pelvic splanchnic nerves, which carry parasympathetic fibers.

The afferent fibers of the autonomic nervous system, which transmit sensory information from the internal organs of the body back to the central nervous system, are not divided into parasympathetic and sympathetic fibers as the efferent fibers are.

The greater petrosal nerve travels through the middle ear and eventually combines with the deep petrosal nerve ( sympathetic fibers ) to form the nerve of the pterygoid canal.

These vascular branches carry sympathetic fibers.

Postganglionic sympathetic fibers from superior cervical sympathetic ganglion reach the gland as periarterial nerve plexuses around the external carotid artery and their function is mainly vasoconstriction.

* Stimulation via sympathetic fibers causes an increase in the SA node rate ( thereby increasing the heart rate and force of contraction ).

These links take the form of parasympathetic and sympathetic fibers that connect either the central and enteric nervous systems or connect the central nervous system directly with the digestive tract.

Both preganglionic sympathetic fibers and preganglionic parasympathetic fibers are cholinergic.

All postganglionic sympathetic fibers are adrenergic ; their neurotransmitter is norepinephrine, except for the postganglionic sympathetic fibers to the sweat glands, piloerectile muscles of the body hairs and the skeletal muscle arterioles.

All postganglionic sympathetic fibers are adrenergic ; their neurotransmitter is norepinephrine, except for the postganglionic sympathetic fibers to the sweat glands, piloerectile muscles of the body hairs and the skeletal muscle arterioles.

The adrenal medulla is considered a sympathetic ganglion and like other sympathetic ganglia, is supplied by cholinergic preganglionic sympathetic fibers ; acetylcholine is its neurotransmitter.

This nerve carries the parasympathetic secretomotor fibers through the pterygoid canal, where it joins the deep petrosal nerve ( containing postganglionic sympathetic fibers from the superior cervical ganglion ) to form the nerve of the pterygoid canal ( vidian nerve ).

In contrast to their parasympathetic counterparts, sympathetic fibers do not synapse in the pterygopalatine ganglion, having done so already in the sympathetic trunk.

As a general rule, in the thorax and abdomen, general visceral afferent ( GVA ) pain fibers follow sympathetic fibers back to the same spinal cord segments that gave rise to the preganglionic sympathetic fibers.

As a general rule, in the thorax and abdomen, general visceral afferent ( GVA ) pain fibers follow sympathetic fibers back to the same spinal cord segments that gave rise to the preganglionic sympathetic fibers.

Motor fibers injuries may involve lower motor neurons, sympathetic fibers, and or both.

The ciliary muscle receives both parasympathetic and sympathetic fibers from the ciliary ganglion called short ciliary nerves.

* sympathetic fibers from cavernous plexus

Postganglionic parasympathetic fibers travel with the sympathetic fibers of the auriculotemporal nerve ( a branch of CN V3 ) to supply the parotid gland.

One possible cause of Harlequin syndrome is a lesion to the preganglionic or postganglionic cervical sympathetic fibers and parasympathetic neurons of the ciliary ganglion.