Superior mesenteric artery territory
Product code: HP0414
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Whole Whole region / system / unpaired organ.
The superior mesenteric artery supplies the midgut-derived region of the gastrointestinal canal (tract), from the descending part of the duodenum to around the splenic flexure of the colon. This pattern of arterial perfusion directly informs the regional pattern of lymphatic and venous drainage, sympathetic innervation and visceral pain, and the location of arterial watersheds. This Silicone Plastinate reveals the origin, course and branching of the superior mesenteric artery, including its anastomoses, contribution to the marginal artery, and target viscera. Organs and vessels of the retroperitoneal space can also be explored, alongside the liver, stomach (part), and spleen. The coeliac trunk and inferior mesenteric artery are shown to enable a comparison of their size and course.
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Polymer injected arteries
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Stand mounted
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Human tissue with unique ID
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Full aftersales support
Key features include
General
- Inferior part of posterior thoracic wall and posterior abdominal wall, posterior part of the pelvis, and the gluteal region.
- Gastrointestinal canal, from jejunum to transverse colon.
Thorax
- Transverse section through the inferior part of the thorax, revealing the vertebral column (vertebral body or intervertebral disc) and associated muscles, and the spinal cord with its meningeal coverings in the vertebral canal.
- Diaphragm (anterior part removed) mostly covered in the diaphragmatic part of the parietal pleura.
- Position of the attachment of the fibrous pericardium to the diaphragm.
- Descending thoracic aorta, oesophagus and inferior vena cava passing through their associated foramen/hiatus (apertures) in the diaphragm.
- Superior view of the lateral and posterior parts of the costodiaphragmatic recesses.
- Position and fibre orientation of the intercostal muscles and muscles of the anterolateral abdominal wall.
- Course and tissue layer location of the intercostal nerves and arteries.
- Various thoracic splanchnic nerves.
Abdomen
- Gastrointestinal canal, from pylorus of the stomach to transverse colon.
- Most parietal peritoneum and peritoneal formations removed.
- Liver, gallbladder, and structures passing to/from the porta hepatis.
- Peritoneal ligaments of the liver, including the falciform and round (teres) ligament.
- Formation of the hepatic portal vein.
- Pancreas removed to reveal the vessels of the retroperitoneal space.
- Cardia and cardiac orifice of stomach, revealing the mucosa and rugae.
- Four parts of the duodenum, including the point of entry of the bile duct (external view).
- Taeniae coli and haustration of colon.
- Superior mesenteric artery and its main branches.
- Pattern of arterial supply to the small intestine, including arcades and vasa recta.
- Anterior layer of mesentery of small intestine mostly removed to reveal the mesenteric vascular network to the small intestine.
- Origin and branching of the coeliac trunk, including its anastomoses with the superior mesenteric artery.
- Proximal (initial) part of the inferior mesenteric artery and its branching.
- Course and bifurcation/formation of the abdominal aorta and inferior vena cava.
Pelvis
- Anterior part of pelvis (to the level of the acetabulum), pelvic viscera and pelvic diaphragm removed to reveal the sacrotuberous and sacrospinous ligaments, sciatic foramina, and parts of the sacral plexus.
- Latissimus dorsi and thoracolumbar fascia (one side), and erector spinae (opposite side).
- Gluteus maximus removed on one side to reveal gluteus medius, gluteus minimus (part), deep gluteal muscles, and associated arteries and nerves.
Possible variants or pathology (not guaranteed)
- Branching patterns of vessels, nerves, and nerve plexuses.
- Variant origins of arteries (e.g., a coeliaco-mesenteric trunk, an aortic or superior mesenteric of origin of the coeliac trunk branches, and an aberrant or polar renal artery).
- Vertebral level of origin, position and course of vessels and nerves.
- Tortuosity of arteries.
- Arterial aneurysm and atherosclerosis.
- Osteoarthritis and disease-related joint deformity.
- Rheumatological bone and soft tissue changes.
- Distended thoracic or abdominal cavity.
- Morphology and position of viscera and muscles (e.g., inferiorly elongated right (Reidel) lobe of liver).
- Hepatic or renal segments show differential levels of coloured polymer perfusion (colouration).
- Pathology of the viscera (e.g., hepatic or renal cyst, diverticula).
- Age-related changes to viscera and soft tissues.
- Enlarged lymph nodes (e.g., intercostal, para-aortic).
Available customisations
- Reveal three layers of intercostal muscle in one intercostal space.
- Retain the parietal pleura on one side of thorax and diaphragm.
- Retain related part of inferior vena cava (injected with coloured polymer).
- Retain transverse colon to splenic flexure and reveal arterial anastomoses.
- injection and dissection of portal venous system.
- Please contact us to discuss bespoke customisations.
