1. Name the long tube that connects the mouth to the stomach. 2. What is the name given to the semi-digested food in stomach? 3. In which part of the digestive system is water absorbed from undigested food? 4. Where does initial digestion of proteins take place? 5. It is a sac-like muscular organ in digestive tract of humans. 6. What is the function of villi? 7. How long is the large intestine in humans? 8. Name the four chambers of the compound stomach in ruminants.
Answer (1)
The long tube that connects the mouth to the stomach is called the esophagus . The esophagus is a muscular tube that moves food from the back of your throat down to your stomach through a series of muscle contractions known as peristalsis.
The semi-digested food in the stomach is known as chyme . Chyme is the pulpy acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food.
Water is absorbed from undigested food in the large intestine . Specifically, this occurs in the colon, where the remaining water from the indigestible food residue is absorbed, turning it into a more solid form to be excreted as waste.
The initial digestion of proteins takes place in the stomach . The stomach releases enzymes like pepsin that begin the breakdown of protein molecules.
The stomach itself is a sac-like muscular organ in the digestive tract of humans. It plays a key role in digesting food mechanically and chemically.
Villi are small finger-like projections that line the walls of the small intestine. Their function is to increase the surface area for absorption of nutrients into the bloodstream. Each villus contains a network of capillaries and a lymph vessel for effective nutrient uptake.
The large intestine in humans is approximately 1.5 meters (about 5 feet) long. The length can vary slightly among individuals but generally remains around this measurement.
The four chambers of the compound stomach in ruminants are the rumen, reticulum, omasum, and abomasum . These chambers work together to digest fibrous plant material through a combination of microbial fermentation and enzymatic digestion.
