What does the lesser splanchnic nerve innervate?

The lesser splanchnic nerve modulates the activity of the enteric nervous system of the midgut. The least splanchnic nerve travels into the abdomen. Its fibers synapse in the renal ganglia. The least splanchnic nerve modulates the activity of the enteric nervous system of the hindgut.

What causes pelvic splanchnic nerve damage?

Lesions in these pelvic autonomic nerves can occur with diabetes, demyelinating diseases, and mass lesions. Damage to pelvic parasympathetic nerves can produce a flaccid bladder with overflow incontinence and can cause erectile impotence in males.

What happens when pelvic splanchnic nerves are activated?

The pelvic splanchnic nerves contribute to the innervation of the pelvic and genital organs. The nerves regulate the emptying of the urinary bladder, control opening and closing of the internal urethral sphincter, influence motility in the rectum as well as sexual functions like erection.

What is a lumbar splanchnic nerve?

The lumbar splanchnic nerves arise from the upper lumbar levels and terminate in the inferior mesenteric and hypogastric ganglia. From these prevertebral ganglia, the postganglionic fibres supply organs in the pelvis, lower abdomen and lower limb.

Are there greater, lesser and lesser splanchnic nerves?

There are past reports of a common trunk for the greater and lesser splanchnic nerves (Naidoo et al.) but our study showed a common trunk of greater, lesser and least splanchnic nerves after each of them had originated separately from MSC. The greater and lesser splanchnic nerves entered the abdomen by passing through this space (Figure 1 & 2).

Where does the LSN come from in the splanchnic nerves?

The LSN was formed by branches from T8-T12 ganglia and the commonest type by branches from T10 and T11 ganglia.

Are there three splanchnic nerves in the thorax?

Gregory D. Cramer, in Clinical Anatomy of the Spine, Spinal Cord, and Ans (Third Edition), 2014 The thorax contains three splanchnic nerves: the greater, the lesser (see Figs. 6-11, 10-5, and 10-12), and the least. Each is formed from branches of the sympathetic chain.

What is the medical term for splanchnic nerve denervation?

Keywords: splanchnic nerves, thoracic, lumbar, sacral, pelvic, nervi erigentes, splanchnicectomy CGX, celiac ganglionectomy; GSN, greater splanchnic nerve; IES, intraoperative electrical stimulation; ISN, least splanchnic nerve; LSN, lesser splanchnic nerve; PSN, pelvic splanchnic nerve; TSD, thoracoscopic splanchnic denervation