Jejunum
The jejunum lies between the duodenum and the ileum and is considered to start at the suspensory muscle of the duodenum, a location called the duodenojejunal flexure. The division between the jejunum and ileum is not anatomically distinct due to the fact that in adult humans, the small intestine is usually 6-7m long, about two-fifths of which (2.5 m) is the jejunum.
Human sexuality
The male genitalia are the penis and the scrotum. The penis provides a passageway for sperm and urine. An average-sized flaccid penis is about in length and in diameter. When erect, the average penis is between to in length and in diameter. The penis's internal structures consist of the shaft, glans, and the root.