The splanchnic nerves are part of the autonomic nervous system. Most autonomic nerves synapse in the sympathetic trunk along the spinal cord, but splanchnic nerves pass through the trunk, travel near their target organ, and synapse in prevertebral ganglia. // Anatomy and Physiology of the A.N.S. In contrast to the voluntary nervous system, the involuntary or autonomic nervous system is responsible for homeostasis, maintaining a relatively constant internal environment by controlling such involuntary functions as digestion, respiration, perspiration, and metabolism, and by modulating blood pressure. ... Illustration of the major elements in a prototypical synapse. ...
Thoracic splancnic nerves provide sympathetic innervation to the abdomen, regulating a wide range of digestive functions. They consist of three branches: The human abdomen Footballer John Arne Riise flashing his abdominals The human abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. ...
Pelvic splanchnic nerves enervate the pelvic and genital organs, regulating the emptying of the urinary bladder and the rectum as well as sexual functions like erection and orgasm. Hindgut is the posterior (caudal) part of the alimentary canal. ... The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ... A sex organ, or primary sexual characteristic, narrowly defined, is any of those parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in an complex organism; namely: Male: penis (notably the glans penis... The interior of bladder. ... The posterior aspect of the rectum exposed by removing the lower part of the sacrum and the coccyx. ... Look up Sex on Wiktionary, the free dictionary A sex is one of two specimen categories of species that recombine their genetic material in order to reproduce, a process called genetic recombination. ... This article needs to be cleaned up to conform to a higher standard of quality. ... An orgasm, also known as a sexual climax, is a pleasurable physical, psychological or emotional response to prolonged sexual stimulation. ...
The splanchnic nerve synapses with collateral ganglia.
It is formed by the cardiac nerves derived from the cervical ganglia of the sympathetic, and the cardiac branches of the vagus and recurrent nerves.
The suprarenal plexus (plexus suprarenalis) is formed by branches from the celiac plexus, from the celiac ganglion, and from the phrenic and greater splanchnicnerves, a ganglion being formed at the point of junction with the latter nerve.
The nerves composing this plexus are white in color and firm in texture; in the upper part of the plexus close to the origin of the superior mesenteric artery is a ganglion (ganglion mesentericum superius).
It descends obliquely on the bodies of the vertebræ, perforates the crus of the diaphragm, and ends in the celiac ganglion.
A striking analogy exists between the splanchnic and the cardiac nerves.
The splanchnicnerves, also three in number, are connected probably with all the thoracic ganglia, and are distributed to important organs in the abdominal cavity.
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