How long is the large intestine in humans?
Large intestine
In humans, the large intestine begins in the right iliac region of the pelvis, just at or below the waist, where it is joined to the end of the small intestine at the cecum, via the ileocecal valve. It then continues as the colon ascending the abdomen, across the width of the abdominal cavity as the transverse colon, and then descending to the rectum and its endpoint at the anal canal.[8] Overall, in humans, the large intestine is about 1.5 metres (5ft) long, which is about one-fifth of the whole length of the gastrointestinal tract.[9]
Echinococcus granulosus
Echinococcus granulosus, also called the hydatid worm, hyper tape-worm or dog tapeworm, is a cyclophyllid cestode that dwells in the small intestine of canids as an adult, but which has important intermediate hosts such as livestock and humans, where it causes cystic echinococcosis, also known as hydatid disease. The adult tapeworm ranges in length from 3 mm to 6 mm and has three proglottids ("segments") when intact—an immature proglottid, mature proglottid and a gravid proglottid. The average number of eggs per gravid proglottid is 823. Like all cyclophyllideans, "E. granulosus" has four suckers on its scolex ("head"), and "E. granulosus" also has a rostellum with hooks. Several strains of "E. granulosus" have been identified, and all but two are noted to be infective in humans.