DIGESTIVE SYSTEM

PARTS:

• Mouth: digestión stars in the mouth. Then the teeth crush the food and then mix it with saliva.
• Esophagus: the food traverls down the esophagus to the stomach.
• Stomach: in the stomach, the food mixes with gastric juices.
•  Liver: the liver produces a liquid called bile that helps break down food.
• Small Intestine: the food goes into the small intestine. Here it mixes with bile from the liver. Nutrients are absorbed here and they pass into the blood.
• Large intestine: the undigestied food passes into the large intestine. There it´s transformed into feaces.
• Rectum: finally, the feaces pass through the rectum and leave the body though the anus.

 

ILLNES:

• Constipation: when people have hard stools or have problems passing stools.
•  Diarrhea: Diarrhea is when you pass loose or watery stool.
• Gallstones: are hard deposits that form inside the gallbladder. Gallstones may be as small as a grain of sand or as large as a golf ball.
•  Hepatits B: Hepatitis B is irritation and swelling (inflammation) of the liver due to infection with the hepatitis B virus (HBV).

RELATIONSHIP:

1. Relationship with the respiratory system starts with that the upper part of both are the mouth and the pharynx, the digestive system uses the mouth and pharynx to chew food into smaller particles and swallow so the food can be digested and nutrients can be excreted. The respiratory system uses the mouth and pharynx to breath in oxygen and sen it to the lung.
2. Circulatory System: the digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. The circulatory system also carries chemical signals from your endocrine system that control the speed of digestion.
3. Excretory System: the digestive system also works in parallel with your excretory system (kidneys and urination). While the digestive system collects and removes undegisted solids, the excretory system filters compounds from the blood stream and collects them in urine. They are closely connected in controlling the amount of water in your body.

FUNCTION:

The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.