In the lower abdomen ... roughly that bulge
between your navel and the top of your legs.
The abdominal cavity.
The body cavity that contains the intestines is called the abdominal cavity. It is located below the diaphragm and above the pelvic cavity. The abdominal cavity also houses other organs such as the liver, stomach, and kidneys.
Most of the small intestine is located in the abdominal cavity. A small amount (approximately the first 10 inches or so) is located behind the abdominal cavity, in what is called the retroperitoneal space. Roughly speaking, the small intestine is framed or bordered by the large intestine. The small intestine is part of the digestive tract and located in the stomach.
The abdominal cavity contains the stomach, intestines, spleen, liver, gallbladder, and pancreas.
The large intestine belongs to the abdominal cavity. It is located in the lower part of the abdominal cavity, where it mainly functions to absorb water and salts from undigested food and to eliminate waste from the body.
The small intestine is located in the abdominal cavity which is below the diaphragm and on the ventral part of the body.
The brain and the spinal cavity are located in the dorsal body cavity.
A cavity that houses body organs is called a body cavity. The main body cavities are the thoracic cavity, abdominal cavity, and pelvic cavity, which contain organs such as the heart, lungs, stomach, and intestines.
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The Small Intestine is the part of the Gastrointestinal Tract that is involved in absorption and the bulk of the digestion of food. It is contained within the Abdomen mostly in the hypogastric Region.
The digestive organs that occupy a large portion of the abdominal cavity include the stomach, liver, pancreas, spleen, and parts of the small and large intestines. These organs work together to break down food, absorb nutrients, and eliminate waste from the body.
The frog's urinary bladder is located in the lowest part of the body cavity.