Digestion Lab Report
-When food arrives in the stomach, it is reduced to fragments. This step is made possible by the contraction of the muscle of the stomach, the muscularis. Composed of three layers of fibers arranged longitudinally, circular and oblique, it mixes and kneads the food.
Then begins the chemical digestion. Only the digestion of proteins begins in the stomach. The mucosa contains glands that secrete gastric juices. Under normal conditions, the production of juices is 2 to 3 L per day. Hydrochloric acid and enzymes are also produced by cells of the stomach. All these substances are mixed with the food and break it down. Crushed, it is transformed into liquid, the chyme. At this stage, the chyme is at the level of the pylorus. It is then propelled little by little into the small intestine by contraction of the stomach. Generally, the stomach will empty in about 4 hours after a …show more content…
Digestive enzymes come from the pancreas through the excretory ducts, while bile acids come from the liver via the bile ducts. The digestive enzymes and the bile acids will allow to transform the chyme, liquid including food pre-digested by the digestive juices coming from the stomach.
Absorption: For its activity, the body will absorb certain elements such as carbohydrates, lipids, proteins, electrolytes, vitamins, as well as water. Absorption of the products of digestion is mainly in the small intestine, and mainly in the duodenum and jejunum.
-The tongue is an accessory organ anchored to the floor of the mouth. It is a strong muscle that is covered by the lingual membrane and has special areas that detect the flavor of food. It is made up of muscles covered by mucous membranes. These muscles are attached to the lower jaw and to the hyoid bone. it can manipulate food in the mouth and place it between the teeth for chewing and coordinates its movements to aid in
Then begins the chemical digestion. Only the digestion of proteins begins in the stomach. The mucosa contains glands that secrete gastric juices. Under normal conditions, the production of juices is 2 to 3 L per day. Hydrochloric acid and enzymes are also produced by cells of the stomach. All these substances are mixed with the food and break it down. Crushed, it is transformed into liquid, the chyme. At this stage, the chyme is at the level of the pylorus. It is then propelled little by little into the small intestine by contraction of the stomach. Generally, the stomach will empty in about 4 hours after a …show more content…
Digestive enzymes come from the pancreas through the excretory ducts, while bile acids come from the liver via the bile ducts. The digestive enzymes and the bile acids will allow to transform the chyme, liquid including food pre-digested by the digestive juices coming from the stomach.
Absorption: For its activity, the body will absorb certain elements such as carbohydrates, lipids, proteins, electrolytes, vitamins, as well as water. Absorption of the products of digestion is mainly in the small intestine, and mainly in the duodenum and jejunum.
-The tongue is an accessory organ anchored to the floor of the mouth. It is a strong muscle that is covered by the lingual membrane and has special areas that detect the flavor of food. It is made up of muscles covered by mucous membranes. These muscles are attached to the lower jaw and to the hyoid bone. it can manipulate food in the mouth and place it between the teeth for chewing and coordinates its movements to aid in