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Related Concept Videos

Anatomy of the Gastrointestinal System01:26

Anatomy of the Gastrointestinal System

The human digestive system is an intricate and essential network for nutrient absorption and waste elimination. It encompasses the gastrointestinal (GI) tract and several accessory organs.
Here's a detailed walkthrough of this complex system:
Blood Supply to the Digestive System01:16

Blood Supply to the Digestive System

Splanchnic circulation refers to the network of blood vessels that supply and drain blood from the abdominal organs involved in digestion, including the stomach, liver, pancreas, intestines, and spleen. This circulation delivers essential nutrients and oxygen while removing waste products from these organs.
Blood Supply to the Digestive System: The splanchnic circulation involves three main arteries: the celiac artery (also known as the celiac trunk) and the superior and inferior mesenteric...
Abdominal Regions and Quadrants01:19

Abdominal Regions and Quadrants

To promote clear communication, for instance, about the location of a patient's abdominal pain or a suspicious mass, anatomists and clinicians typically use imaginary lines to categorize the abdominopelvic cavity into either four quadrants or nine regions to identify organs in the cavity.
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four quadrants...
Nerve Supply of the GI Tract01:27

Nerve Supply of the GI Tract

The neuronal supply to the gastrointestinal (GI) tract is essential for regulating various functions, including digestion, absorption, and movement of food. This intricate network of nerves is known as the enteric nervous system (ENS), often referred to as the "second brain" of the body.
The enteric nervous system consists of two major plexuses: the myenteric plexus (Auerbach's plexus) and the submucosal plexus (Meissner's plexus). These plexuses are located within the layers of the GI tract...
Anatomy of the Intestines01:23

Anatomy of the Intestines

Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the small...
Tight Junctions01:29

Tight Junctions

Tight junctions are molecular seals between cells that prevent the leaking of fluids, ions, and other small solutes across cavities and compartments in multicellular organisms. They are mainly composed of claudin and occludin transmembrane proteins, and other proteins such as tricellulin and JAM (junctional adhesion molecule). All these proteins are 4-pass transmembrane proteins, except JAM, which is a single-pass transmembrane protein belonging to the immunoglobulin superfamily. The...

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The Role of Anatomical Dissection in Defining Colic and Small Bowel Artery Lymphovascular Bundles in the D3 Volume of Small and Large Bowel Mesentery
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[Anatomo-clinical considerations regarding the celiac-mesenteric junction].

D Păduraru1, M Zamfir, C I Stan

  • 1Universitatea de Medicină şi Farmacie Gr.T. Popa Iaşi, Facultatea de Medicină, Catedra de Anatomie.

Revista Medico-Chirurgicala a Societatii De Medici Si Naturalisti Din Iasi
|August 6, 2008
PubMed
Summary
This summary is machine-generated.

Understanding access to the superior mesenteric artery (SMA) is crucial for treating visceral artery disease. This study details classical and less common surgical approaches to the SMA origin, aiding in revascularization strategies.

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Area of Science:

  • Vascular Surgery
  • Anatomy
  • Interventional Radiology

Background:

  • The superior mesenteric artery (SMA) origin is a frequent site for atheroma plaques.
  • These plaques can cause acute or chronic intestinal ischemia, presenting as postprandial abdominal pain.
  • Effective revascularization strategies depend on accessible surgical approaches to the SMA.

Purpose of the Study:

  • To outline classical and less-known access routes to the SMA origin and proximal segment.
  • To analyze the advantages and disadvantages of each described access pathway.
  • To provide anatomical insights for surgical planning in SMA revascularization.

Main Methods:

  • Dissection of 30 human cadavers.
  • Review of 200 selective arteriographies.
  • Comparative analysis of anatomical access routes.

Main Results:

  • Two classical approaches to the proximal SMA were identified: the inter-duodeno-pancreatic and the left thoraco-abdominal routes.
  • The study details the anatomical considerations and technical aspects of these and other less common access ways.
  • Advantages and disadvantages of each method are discussed in relation to SMA access.

Conclusions:

  • Knowledge of SMA origin access is essential for successful revascularization procedures.
  • The SMA origin is a critical area for managing atheromatous disease leading to intestinal ischemia.
  • Selecting the appropriate access route is vital for effective treatment of SMA-related visceral territory conditions.