Upper Abdomen Anatomy

The inferior vena cava assumes a retroperitoneal position to the right of the aorta as it ascends from the abdomen into the thorax. The diaphragm forms the upper surface of the abdomen.

Abdomen Anatomy Definition Function Muscles Biology

The abdomen contains organs involved in the gastrointestinal tract including the oesophagus stomach small intestine cecum appendix colon rectum and the anal canal.

Upper abdomen anatomy. The abdomen contains all the digestive organs including the stomach small and large intestines pancreas liver and gallbladder. The stomach is located between the esophagus and the small intestine in the upper left region of the abdomen. The gastrointestinal tract is an organ system that enables us to ingest food digest it absorb it and then expel the remaining waste as faeces.

At the level of the pelvic bones the abdomen ends and the pelvis begins. These muscles help the body bend at the waist. Spleen is 1 inch thick 3 inches broad and 5 inches long.

It is a reservoir for the common iliac lumbar right gonadal renal right adrenal and hepatic veins. Spleen is the biggest lymphoid organ present in the upper far left portion of the abdomen in the left hypochondrium and is surrounded by peritoneum. The enlargement of spleen is referred to as splenomegaly.

It and the superior vena cava empty into the right atrium. The small intestine is situated between the stomach and large intestine and consists of the three segments duodenum jejunum and ileum each exhibiting distinct functional properties. The muscles of the abdomen protect vital organs underneath and provide structure for the spine.

The stomach is responsible for the secretion of digestive enzymes and gastric acid required to digest food products. The major muscles of the abdomen include the rectus abdominis in front the external obliques at the sides and the latissimus dorsi muscles in the back.

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