Information about Splanchnic Nerve
The splanchnic nerves are paired nerves that innervate the viscera, carrying fibers of the autonomic nervous system (visceral efferent fibers) as well as sensory fibers from the organs (which are also known as visceral afferent fibers). All carry sympathetic fibers except for the pelvic splanchnic nerves, which carry parasympathetic fibers. Specifically, the term "splanchnic nerves" can refer to:
- Thoracic splanchnic nerves (greater, lesser, and least)
- Lumbar splanchnic nerves
- Sacral splanchnic nerves
- Pelvic splanchnic nerves
viscus (IPA: /ˈvɪskəs/) (plural: viscera /ˈvɪsərə/
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autonomic nervous system (ANS) (or visceral nervous system) is the part of the peripheral nervous system that acts as a control system, maintaining homeostasis in the body. These maintenance activities are primarily performed without conscious control or sensation.
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Sensory nerves are nerves that receive sensory stimuli, such as how something feels and if it is painful.
They are made up of nerve fibers, called sensory fibers (mechanoreceptor fibers sense body movement and pressure placed against the body, and nociceptor fibers sense
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They are made up of nerve fibers, called sensory fibers (mechanoreceptor fibers sense body movement and pressure placed against the body, and nociceptor fibers sense
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The general visceral afferent fibers (or sympathetic afferent fibers), conduct sensory impulses from the viscera through the rami communicantes and posterior roots to the spinal cord.
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The word sympathetic means different things in different contexts.
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- In neurology, the sympathetic nervous system is a part of the autonomic nervous system.
- In music theory, sympathetic strings are strings on a musical instrument that resonate on their own.
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parasympathetic nervous system (PSNS) is one of three divisions of the autonomic nervous system (ANS). The ANS -a subdivision of the peripheral nervous system (PNS)- is subdivided into the sympathetic (SNS), parasympathetic (PSNS) and enteric (bowels) nervous system (ENS).
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Thoracic splanchnic nerves arise from the sympathetic trunk in the thorax and travel inferiorly to provide sympathetic innervation to the abdomen. The nerves contain preganglionic sympathetic and visceral afferent fibers.
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The lumbar splanchnic nerves arise from the lumbar part of the sympathetic trunk and travel to an adjacent plexus near the aorta.
These nerves contain preganglionic sympathetic and visceral afferent fibers.
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These nerves contain preganglionic sympathetic and visceral afferent fibers.
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Sacral splanchnic nerves are nerves that connect the inferior hypogastric plexus to the sympathetic trunk in the pelvis.
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Structure
The sacral sympathetic nerves arise from the sacral part of the sympathetic trunk, emerging anteriorly from the ganglia...... Click the link for more information.
Pelvic splanchnic nerves or nervi erigentes are splanchnic nerves that arise from sacral spinal nerves S2, S3, S4 to provide parasympathetic innervation to the hindgut.
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