Abdomen

Topics
Anterolateral abdominal wall muscles

This section gives an overview of the five muscles forming the anterolateral abdominal wall. The chapter includes detailed information about the origin, insertion, action, and innervation of each muscle.

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  • Anterolateral abdominal wall muscles (overview)
  • External abdominal oblique muscle
  • Internal abdominal oblique muscle
  • Transversus abdominis muscle
  • Rectus abdominis muscle
  • Pyramidalis muscle
Posterior abdominal wall muscles

This article provides information about the four muscles forming the posterior abdominal wall, including their origin and insertion sites, functions and innervation.

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  • Posterior abdominal wall muscles (overview)
  • Psoas major muscle
  • Psoas minor muscle
  • Iliacus muscle
  • Quadratus lumborum muscle
Stomach

In this study unit, learn in detail about anatomy of the stomach - its parts, location and relations to other organs, as well as the arterial and venous blood supply, and innervation of the stomach.

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  • Stomach and esophagus
  • Gross anatomy of the stomach
  • Pylorus and the muscular layer
  • Location and relations of the stomach
  • Blood supply of the stomach
  • Innervation and lymphatic drainage of the stomach
Intestines

In this chapter, find information about small and large intestines and their anatomical parts. The section includes an overview of the arterial blood supply and venous drainage of the organs.

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  • Small intestine
  • Jejunum and ileum
  • Blood supply of the jejunum and ileum (part 1)
  • Blood supply of the jejunum and ileum (part 2)
  • Large intestine
  • Distinguishing features of the colon
  • Cecum and appendix
  • Ascending, descending, transverse and sigmoid colon
  • Blood supply of the colon
  • Rectum
  • Blood supply of the rectum
  • Venous drainage of the intestines
  • Innervation of the intestines
Duodenum

This chapter provides detailed information about the anatomy of the duodenum, its parts, topography, blood supply, and innervation.

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  • Duodenum (overview)
  • Superior part of the duodenum (duodenal bulb)
  • Descending part of the duodenum
  • Horizontal part of the duodenum
  • Ascending part of the duodenum
  • Blood supply of the duodenum
  • Innervation of the duodenum
Accessory organs of the digestive tract

In this section, learn about the pancreas, liver and its ligaments, gallbladder, and biliary ducts. The section also provides information about the blood supply and innervation of these organs.

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  • Pancreas
  • Parts of the pancreas
  • Pancreatic ducts
  • Blood supply and innervation of the pancreas
  • Liver
  • Organization of the liver
  • Ligaments and fissures of the liver
  • Porta hepatis
  • Gallbladder
  • Biliary ducts
Other abdominal cavity organs

This study unit contains detailed information about the spleen, kidneys and their anatomical relations, ureters, adrenal glands, and the omentum. Learn also about their blood supply and innervation.

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  • Spleen
  • Kidneys
  • Relations of the kidneys
  • Blood supply of the kidneys
  • Ureters
  • Blood supply and innervation of the ureters
  • Adrenal glands
  • Blood supply and innervation of the adrenal glands
  • Omentum