What is the anatomy of lumen?
lumin are spaces inside tubular structures in the body. For example, the "open cavity" through which the food travels to the stomach is lumen. Lumen in anatomy can also refer to a hole or opening in a solid structure, such as a circular hole in the vertebral bone through which spinal cord courses.
One of the largest lumina in anatomy is the open space inside the aorta, the largest container of the body. Blood flows from the left side of the heart through the aortu to the rest of the body. Tears in the aorta can cause serious and even life -threatening conditions. For example, a small tear for the intima aorta tuna, the innermost tissue layer of the blood vessel, can lead to the collection of blood between tissue layers on a wall called aneurysm. Aneurysm can increase the size until it either block the entire lumen of the vessel or can open a rupture. Aorta, known as aortic dissection, can result in death.
Another example of a massive lumen is foramen maGnum, the largest opening on the skull base. This bony hole is an anatomical definition where the brain strain becomes a spinal cord. This is an important structure through which nerve impulses are transferred to the body. Any large swelling or increasing pressure in the skull cavity can push the brain down through the foramen magnum, resulting in death. This condition is known as Arnold-Chiari malformation.
medium -sized lumins can be represented by open cavities in the esophagus, small intestine, large intestine and colon. The stomach would normally not be considered a lumen due to the bulbous shape of the organ, but technically, due to its passage or channel of a similar nature, Lumen could call open space. The transfer of Maticerients passes through the walls of the gastrointestinal tract. Performation within this lumen can lead to the need for emergency surgery.
among smaller examples of lumina include pipes and channels passengers between organs. The main role model of this group is the cystic channel, which courses from the gallbladder, oThe Rgán, which collects bile, into the bile, which in a small opening of the second flows into the duodenum called the main duodenal papilla. This lumen allows the bile from the gallbladder to the intestines to help with the digestion of food.
Small lumina is most of the lumens in the body. This Lumina group includes open spaces in anatomical tubes such as arteries and veins where blood can pass from one area of the body to the other. The smallest of these lumina can be found in the kidneys. The lumina of this size is formed by glomerulic apparatuses, extremely small blood vessels that allow sodium, water and ammonia from blood to form urine.