The sympathetic trunk (sympathetic chain, gangliated cord) is a paired bundle of nerve fibers that run from the base of the skull to the coccyx. It is a major component of the sympathetic nervous system.

The sympathetic nervous system (SNS or SANS, sympathetic autonomic nervous system, to differentiate it from the somatic nervous system) is one of the three divisions of the autonomic nervous system, the others being the parasympathetic nervous system and the …

Nov 2, 2023 · The sympathetic nervous system is part of the autonomic nervous system, along with its counterpart, parasympathetic nervous system. The origin of the sympathetic nervous system is found within the thoracic and lumbar segments of the spinal cord also known as the thoracolumbar division (T1 to L2,3).

What is the sympathetic nervous system (SNS)? Your sympathetic nervous system is part of your autonomic nervous system. It could be called your “automatic” nervous system, as it is responsible for many functions that you don’t have to think about to control.

Feb 13, 2025 · The sympathetic chain (sympathetic trunk or paravertebral ganglia) are 22 pairs of interconnected neuronal cell bodies which run parallel either side of the vertebral column – extending from the base of the skull to the coccyx.

May 8, 2023 · The sympathetic nervous system is composed of many pathways that perform a variety of functions on various organ systems. The preganglionic neurons of the SANS arise from the thoracic and lumbar regions of the spinal cord (T1 to L2) with the cell bodies distributed in four regions of the gray matter in the spinal cord bilaterally and symmetrically.

Sep 26, 2022 · The sympathetic nervous system is comprised exclusively of efferent neurons and divides into the left and right sympathetic chains. Each sympathetic chain extends from the skull base to the coccyx paravertebrally, carrying preganglionic fibers from the spinal cord that synapse in an adjacent ganglion, from which ascending and descending ...

Feb 10, 2025 · The sympathetic nervous system (SNS), mediated by the sympathetic chain (trunk) and ganglia, is a major division of the autonomic nervous system. It is composed of general visceral afferent and efferent axons that allow for involuntary control of bodily functions via the hypothalamus .

Jan 22, 2025 · The sympathetic trunk, also known as the sympathetic chain, is a major component of the autonomic nervous system, specifically the sympathetic division. It consists of two parallel nerve chains that run longitudinally on either side of the vertebral column.

Sep 5, 2024 · In this article, we shall look at the anatomy of the sympathetic innervation to the head and neck – its structure, anatomical course, and its clinical correlations. Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. The sympathetic fibres to the head and neck begin in the spinal cord.