HUMAN NUTRITION

Detailed explanation-1: -The small intestine is about 5.5 metres (18 feet) long and folds many times to fit in the abdomen. Although it is longer than the large intestine, it is called the small intestine because it is narrower in diameter.

Detailed explanation-2: -The inner diameter of the small intestine averages 2.5 cm and that of the large intestine averages 4.8 cm. The mucosa of the small intestine is enlarged ∼1.6 times by the plicae circulares.

Detailed explanation-3: -The length of the small intestine is roughly 9–16 feet (ft), while the large intestine is shorter, measuring about 5 ft long. The intestines sit in the abdomen and absorb nutrients, vitamins, and water.

Detailed explanation-4: -Ascending colon It is connected to the small intestine by a section of bowel called the cecum. The ascending colon runs upwards through the abdominal cavity toward the transverse colon for approximately eight inches (20 cm).

Detailed explanation-5: -The other parts-the cecum, rectum, and anus-are all much shorter, only a few inches in length at the most. The large intestine also has a larger diameter than the small intestine. It’s about 3 inches (around 7.6 centimeters) wide.