Viscus

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Viscus (/'vɪskəs/)

Viscus (plural: viscera /'vɪsərə/) is a term used in the medical field to refer to the organs in the main cavities of the body, especially those in the abdominal cavity.

Etymology

The term "viscus" is derived from the Latin word "viscus", meaning "internal organ". The plural form "viscera" is more commonly used in medical terminology.

Definition

A viscus is an internal organ of the body, particularly those contained within the abdominal cavity. This includes organs such as the stomach, liver, gallbladder, spleen, pancreas, small intestine, large intestine, kidneys, and bladder.

Related Terms

  • Abdominal cavity: The space within the abdomen that houses the viscera.
  • Thoracic cavity: The chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia). The central compartment of the thoracic cavity is the mediastinum. There are two openings of the thoracic cavity, a superior thoracic aperture known as the thoracic inlet and a lower inferior thoracic aperture known as the thoracic outlet.
  • Pelvic cavity: The space within the pelvis that contains the urinary bladder, rectum, and internal reproductive organs.
  • Peritoneum: The serous membrane forming the lining of the abdominal cavity. It covers most of the intra-abdominal (or coelomic) organs.
  • Mesentery: A fold of the peritoneum that attaches the stomach, small intestine, pancreas, spleen, and other organs to the posterior wall of the abdomen.

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