Hilum

The hilum or hilus is a word derived from Latin and literally means " stick".

• In anatomy, a hilum is the starting point to enter the blood vessels and nerves into an organ. One speaks, for example, the liver, lung, spleen or renal hilum. At institutions which have a blood supply over several vessels and at various locations, there is no hilus ( for example in the intestines or the bladder )
• In botany, called the hilum or German " navel " which is often visible attachment point at which the seed was connected to a supply of nutrients via the funiculus with the placenta. Striking is an umbilical spot, for example, on the seeds of the horse chestnut.
• In mycology called hilum: at a basidiospore the scar at the site where the spore sat up during growth of the basidium.
• At Conidiospores the scar on the spore that arises after the replacement of the conidiogenous cell.