The correct answer is: C. Small Intestine
The small intestine is the longest part of the alimentary canal, measuring about 20 feet long in adults. It is located between the stomach and the large intestine. The small intestine is responsible for absorbing nutrients from food. It does this by secreting digestive enzymes and bile, which break down food into smaller molecules that can be absorbed by the bloodstream. The small intestine is also lined with millions of tiny finger-like projections called villi, which increase the surface area of the intestine and help to absorb nutrients.
The esophagus is a muscular tube that connects the throat to the stomach. It is about 10 inches long in adults. The esophagus’s job is to move food from the throat to the stomach. It does this by contracting and relaxing in a wave-like motion called peristalsis.
The large intestine is the final part of the alimentary canal. It is about 5 feet long in adults. The large intestine’s job is to absorb water and electrolytes from food waste and to store food waste until it is eliminated from the body.
The stomach is a muscular sac that holds food while it is being digested. It is about 12 inches long in adults. The stomach’s job is to churn food and mix it with digestive juices. These juices break down food into smaller molecules that can be absorbed by the small intestine.