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  2. Autonomic nervous system - Wikipedia

    en.wikipedia.org/wiki/Autonomic_nervous_system

    Autonomic nervous system, showing splanchnic nerves in middle, and the vagus nerve as "X" in blue. The heart and organs below in list to right are regarded as viscera. The autonomic nervous system has been classically divided into the sympathetic nervous system and parasympathetic nervous system only (i.e., exclusively motor).

  3. Sympathetic ganglia - Wikipedia

    en.wikipedia.org/wiki/Sympathetic_ganglia

    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. Afferent nerve cell bodies bring information from the body to the brain and spinal cord, while efferent nerve cell ...

  4. Sympathetic nervous system - Wikipedia

    en.wikipedia.org/wiki/Sympathetic_nervous_system

    The autonomic nervous system functions to regulate the body's unconscious actions. The sympathetic nervous system's primary process is to stimulate the body's fight or flight response. It is, however, constantly active at a basic level to maintain homeostasis. [4] The sympathetic nervous system is described as being antagonistic to the ...

  5. Autonomic ganglion - Wikipedia

    en.wikipedia.org/wiki/Autonomic_ganglion

    An autonomic ganglion is a cluster of nerve cell bodies (a ganglion) in the autonomic nervous system. The two types are the sympathetic ganglion and the parasympathetic ganglion . [ 1 ] [ 2 ]

  6. Sympathetic trunk - Wikipedia

    en.wikipedia.org/wiki/Sympathetic_trunk

    The sympathetic trunk is a fundamental part of the sympathetic nervous system, and part of the autonomic nervous system. It allows nerve fibres to travel to spinal nerves that are superior and inferior to the one in which they originated. Also, a number of nerves, such as most of the splanchnic nerves, arise directly from the trunks.

  7. Parasympathetic ganglia - Wikipedia

    en.wikipedia.org/wiki/Parasympathetic_ganglia

    Parasympathetic ganglia are the autonomic ganglia of the parasympathetic nervous system. Most are small terminal ganglia or intramural ganglia, so named because they lie near or within (respectively) the organs they innervate. The exceptions are the four paired parasympathetic ganglia of the head and neck.

  8. CFP/Getty . Will Howard #18 of the Ohio State Buckeyes celebrates with family and fans after the game against the Oregon Ducks at Rose Bowl Stadium on January 1, 2025 in Pasadena, California.

  9. Parasympathetic nervous system - Wikipedia

    en.wikipedia.org/wiki/Parasympathetic_nervous_system

    Parasympathetic autonomic nervous system: ... Owing to its location, the parasympathetic system is commonly referred to as having "craniosacral outflow", which stands ...