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The abdominal cavity is a large body cavity in humans [1] and many other animals that contain organs. It is a part of the abdominopelvic cavity . [ 2 ] It is located below the thoracic cavity , and above the pelvic cavity .
Quadrants of the abdomen Diagram showing which organs (or parts of organs) are in each quadrant of the abdomen. The left lower quadrant (LLQ) of the human abdomen is the area left of the midline and below the umbilicus. The LLQ includes the left iliac fossa and half of the left flank region. The equivalent term for animals is left posterior ...
It is a small organ attached to the large intestine in the lower right side of the abdomen. Anatomists and medical professionals have traditionally considered the appendix a vestigial organ. Later research suggests that it may have an immunological function. [13] On the dorsal aspect of the abdominal cavity, there are two bean-shaped organs.
The abdomen can be divided into quadrants or regions to describe the location of an organ or structure. Classically, quadrants are described as the left upper, left lower, right upper, and right lower. [citation needed] Quadrants are also often used in describing the site of an abdominal pain. [15] The abdomen can also be divided into nine regions.
Gross anatomy has become a key part of visual arts. Basic concepts of how muscles and bones function and deform with movement is key to drawing, painting or animating a human figure. Many books such as Human Anatomy for Artists: The Elements of Form, are written as a guide to drawing the human body anatomically correctly. [4]
The next branch from the abdominal aorta is the superior mesenteric artery, which supplies the regions of the digestive tract derived from the midgut, which includes the distal 2/3 of the duodenum, jejunum, ileum, cecum, appendix, ascending colon, and the proximal 2/3 of the transverse colon.
The abdominal organs may be classified as solid organs or hollow organs. The solid organs are the liver, pancreas, spleen, kidneys, and adrenal glands. The hollow organs of the abdomen are the stomach, intestines, gallbladder, bladder, and rectum. [6] In the thoracic cavity, the heart is a hollow, muscular organ. [7]
The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus.The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines.