The small intestine is, indeed, hollow running 20 feet.
a hollow intestine
The word is lumen. It means the interior of a hollow tubular structure such as the intestine.
The pancreatic duct comes from the pancreas to the small intestine as does the accessory pancreatic duct. Pancreatic juice containing important buffers and digestive enzymes travels through these ducts into the lumen or hollow part of the duodenum or first part of the small intestine. Physically, there is some connective tissue that holds both the pancreas and small intestine in place and near each other.
the long intestine and the shorter intestine
The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system. The small intestine has three parts. The first part is called the duodenum.
Food enters the small intestine first. It enters the duodenum in the small intestine.
The ileum of the small intestine is directly attached to the large intestine. It forms the majority of the small intestine. It is C-shaped and short. It is the middle portion of the small intestine. It is at the beginning of the small intestine.
The large intestine is on top of your small intestine.
It compared in size to the large intestine it is about twice as small
The major site of nutrient absorption is the small intestine.
The small intestine is said to be small because it's diameter is not as large as the large intestine.
The most vulnerable hollow organ in the abdomen is typically considered to be the small intestine. Its length and relatively thin walls make it susceptible to injury from trauma, such as lacerations or perforations, which can lead to serious complications like peritonitis. Additionally, the small intestine is also prone to obstruction due to adhesions or tumors, making it a critical focus in abdominal emergencies.