how many feet are human intestine
The average length of the small intestine in an adult human male is 6.9 m (22 ft 8 in), and 7.1 m (23 ft 4 in) in an adult female. It can vary greatly, from as short as 4.6 m (15 ft) to as long as 9.8 m (32 ft). Recent studies indicate that small intestine may be shorter, around 3.5 m (11 ft 6 in), and that the length is less affected by age after childhood than expected. It is approximately 2.5â3 cm in diameter. The surface area of the human small intestinal mucosa averages 30 square meter. The small intestine is divided into three structural parts. The duodenum is a short structure (about 20â25 cm long) continuous with the stomach and shaped like a C.