The sympathetic ganglia, or paravertebral ganglia, are autonomic ganglia of the sympathetic nervous system. Ganglia are 20,000 to 30,000 afferent and efferent nerve cell bodies that run along on either side of the spinal cord.

Oct 30, 2023 · Autonomic ganglia: Sympathetic (close to the spinal cord), Parasympathetic (neer on in the viscera). In this article, we will explore their respective anatomy and subtypes. Ganglia are oval in structure and contain neuronal cell bodies (somata), satellite cells (a type of glial cell), and a protective connective tissue layer.

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.

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.

Nov 2, 2023 · The sympathetic ganglia, The postganglionic neurons. While the sympathetic nervous system is also important at rest, it is essential for preparing the body for emergency response in endangering situations, also known as the “fight-or-flight” response.

Sep 26, 2022 · 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 postganglionic fibers head toward viscera.

Sep 5, 2024 · The sympathetic fibres synapse with these ganglia, with post ganglionic branches continuing into the head and neck. Each of the three ganglia are related to specific arteries in the head and neck. The post-ganglionic fibres hitch-hike along these arteries (and their branches) in order to reach their target organs.

Histology of a sympathetic ganglion - ganglion cells, lipofuscin, and satellite cells.

Sympathetic ganglia are the ganglia of the sympathetic nervous system that initiate fight-or-flight, stress-mediated responses. The bilaterally symmetric sympathetic chain ganglia, also called the paravertebral ganglia, extend from the upper neck down to the coccyx, lateral and slightly ventral to the vertebral column.

A sympathetic ganglion refers to a type of nervous tissue that has been extensively studied for understanding synaptic transmission. It is often referred to as the "little brain" and has been shown to exhibit activity-dependent long-lasting potentiation, a phenomenon known as long-term potentiation (LTP).