abdominal nerves Phrenic nerve:
contains motor fibers, sensory and sympathetic; innervate the pericardial mediastinal pleura, the central part of the diaphragmatic pleura, diaphragm and peritoneum. The right phrenic nerve passes through the diaphragm near the inferior vena cava or the hole. The left phrenic nerve passes through the diaphragm immediately left wing of the pericardium. The majority of motor fibers will innervate the diaphragm, some sympathetic fibers reach the stomach and adrenal gland.
vagus nerves penetrate the esophageal plexus and form the anterior and posterior trunk.
anterior trunk: branches provides liver, gastric, and celiac trunk
later: gastric and celiac branches provides
vagal fibers enter the celiac trunk and branches are the celiac and superior mesenteric plexus to reach the stomach, spleen, liver, pancreas, intestine intestine and large intestine to the anterior two thirds of transverse colon. Splanchnic Nerves
These sympathetic nerves, which are the major, minor and imo, originate in the thoracic sympathetic trunk.
greater splanchnic nerve, passes through the pillar of the diaphragm and face forward toward the celiac ganglion. After passing through the diaphragm is located behind the vena cava and adrenal Gandula. Splanchnic nerve
RETAIL: Go through the diaphragm slightly higher outside the splenic joins the celiac ganglion or renal aortic filaments providing for the celiac, mesenteric and renal sup. Splanchnic nerve
LOWER (IMO): It enters the abdomen, on the inner side of the sympathetic ganglion and joins the kidney and renal aortic lymph node. Autonomic plexus
The large abdominal prevertebral plexus consists of splanchnic nerves, branches of the vague and masses of ganglion cells. CELIAC PLEXUS
The largest of the autonomic plexuses, is situated at D12 and the top of L1, consisting of a dense network of nerve fibers that connect with the celiac ganglia, around the celiac trunk and superior mesenteric artery. Located posterior to the stomach and lesser sac, in front of the pillars of the diaphragm and the birth of the abdominal aorta. The plexus receives some filaments of the phrenic nerve, splanchnic nerves, major and minor, and imo. SECONDARY
· PLEXUS PLEXUS FRENIC: Join diaphragmatic artery inferior to the diaphragm, some of its fibers are directed to the adrenal gland. Born in the top of the celiac ganglion and is greater in the right portion, you receive one or two branches of the phrenic nerve. At the junction of the right phrenic plexus with the phrenic ganglion forms a giving branches to the inferior vena cava.
· HEPATIC PLEXUS: The largest of the derivatives of the celiac plexus, receives filaments from the right phrenic and vagus nerve left and right. Join the common hepatic artery, portal vein and its branches to the liver so that the filaments are very subject to the vicinity of blood vessels. Accompanying hepatic plexus branches:
1. Through the cystic artery (cystic plexus)
2. Through the filaments are right hepatic artery to the pylorus
3. Through the gastroduodenal artery and its branches give filaments to the pylorus and upper duodenum
4. Through gastroepiploic artery give filaments to the right side of the stomach and the greater curvature.
5. Through the art pancreaticoduodenal gives filaments to the descending portion of duodenum, pancreas head and the lower portion of the bile duct.
The plexus contains sympathetic fibers and both afferent and efferent parasympathetic and vagal think your component has a motor action on the musculature of the gallbladder and its ducts and inhibit the bile duct sphincter.
· left gastric plexus: Join the left gastric artery along the lesser curvature of the stomach and is attached to the gastric branches of the vagus nerves. Gastric sympathetic nerves have a motor action to inhibit the pyloric sphincter and the muscular layers of the stomach.
· Splanchnic plexus, is formed by branches from the celiac plexus right vagus nerve. lienal accompany the artery to the spleen, the fibers are mostly nice and end up in the vessels of the smooth muscle of the splenic capsule and trabeculae.
· PLEXUS Adrenal: It is formed by branches from the celiac plexus, and the greater splanchnic nerve. We found pre ganglionic fibers, and multipolar mielítico make this gland in a very afferent fibers. RENAL
· PLEXUS: It is formed by filaments from the celiac ganglia and plexuses, renal aortic lymph node, inferior splanchnic nerve, splanchnic I lumbar and aortic plexus. Found in small clusters, is continued until the kidney around the renal artery. Most of its fibers are vasomotor action.
plexus branches start to the ureteric plexus.
· PLEXUS ureters receive fibers from 3 sources; the top of the aortic plexus and kidney, the middle part of the superior hypogastric plexus and hypogastric nerve, the bottom receives inferior hypogastric plexus and hypogastric nerve. TESTICULAR
· PLEXUS: Join the spermatic artery to the testicle, the part top is formed by branches of the renal and aortic plexus, while the lower portion is reinforced by branches of the superior and inferior hypogastric.
· PLEXUS GONADAL: Join the ovarian artery in the ovary and fallopian tube, its upper part is formed by branches of the renal and aortic plexus, while the lower portion is reinforced by branches of the superior and inferior hypogastric.
Its fibers from the inferior hypogastric parasympathetic, vasomotor in nature, its efferent fibers are vasomotor and nature from the tenth and eleventh thoracic segments of the spinal cord.
· SUPERIOR MESENTERIC PLEXUS: It surrounds the superior mesenteric artery and is subdivided into several secondary plexuses that are distributed to the irrigated areas. Get a bunch of right vagus nerve from the celiac plexus.
· aortic plexus, is formed by branches from the ganglion and celiac plexus and receives filaments from the lumbar splanchnic nerves I and II. Located in front of the aorta between the superior and inferior mesenteric gives rise to testicular plexus, inferior mesenteric, iliac and hypogastric. INFERIOR MESENTERIC PLEXUS
·: Proceed across the aortic plexus but receives the lumbar splanchnic nerves I and II. It surrounds the inferior mesenteric artery and is distributed throughout their branches. Sympathetic innervation is from the superior hypogastric.
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