Digestion process

DIGESTION PROCESS

by Nur Annissa

• MOUTH

Digestion starts when food is ingested at the mouth. Chewing breaks down the food
into small pieces so that it is easily digested. Saliva breaks down the food for the digestive system to absorb and use.

• ESOPHAGUS

The esophagus is a long, muscular tube that connects the throat to the stomach. Food is pass to the stomach by a process called peristalsis. Peristalsis is a series of contraction of muscle along the esophagus for the food ball. At the esophagus also is a sphincter which is called lower esophageal sphincter. the function of this sphincter is to prevent backwards movement of the food.

• STOMACH

The stomach secretes acid and enzymes that will further break down food.

• SMALL INTESTINE

The small intestine is made up of segments. these segments are the duodenum, jejunum, and ileum. The duodenum continues to break down food while the jejunum and ileum absorbs the nutrients into the bloodstream.

• LARGE INTESTINE

The large intestine is also known as the colon. Waste products from the digestion process is passed through here by the process peristalsis. when the colon becomes full of waste products, it empties its contenys into the rectum for elimination.

• RECTUM

The rectum connects the colon to the anus. The function of the rectum is to receive stool from the colon, let the brain know that there's stool to be eliminated, and holds the stool until elimination. here, there's a sphincter that controls the opening to the anus.