1 / 5

HUMAN BODY

HUMAN BODY. The Intestines. Small intestine, 5-6 meters long. Large intestine, 1.5 meters long. An adult’s small intestine is 6-7 meters long. The large intestine is 7 to 10 cm wide. The large intestine absorbs the water from the waste.

tyrone
Download Presentation

HUMAN BODY

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HUMAN BODY The Intestines

  2. Small intestine, 5-6 meters long. • Large intestine, 1.5 meters long. • An adult’s small intestine is 6-7 meters long. • The large intestine is 7 to 10 cm wide. • The large intestine absorbs the water from the waste. • The small intestine has three layers called, serosa, muscle layer and the mucosa layer. • The small intestine folds, twists in the center of the cecum, below the stomach. • The small intestine is divided into three pieces, they are the duodenum, ileum and the jejunum. • The large intestine is divided into 6 pieces, they are cecum, ascending colon, transverse colon, descending colon, sigmoid colon and the rectum.

  3. Esophagus is 25 centimetres long. • The food stays in the mouth for about 1 minute. • In the stomach the food stays there for 2-4 hours. • The food stays in the small intestine from 1-4 hours. • The food stays at the colon for 10 hours or for a several days. • 1.9 litres of food and liquid passes through your body in one day. • We eat about 500 kg of food in a year. • 1.7 liters of saliva is made in your mouth in one day. • Adults can hold 1.5 liters of food in their stomach. • In your life time the digestive system can handle 50 tons of food and liquid. • To make saliva, we need salivary glands.

  4. Saliva helps our food to break down into pieces. • In the saliva there are chemicals called enzymes. • The digestive system functions to move food through the system. All of the digestive organs contain a lining made of smooth muscle tissue. These muscles contract in waves, a process known as peristalsis, which propel food downward. Due to this, food moves down the esophagus to the stomach, even if the person is standing on her head. • In the stomach, there is a acid called hydrochloric acid which breaks down food. • An adult's stomach can hold approximately 1 litre of food. The stomach is a sac-like structure surrounded by a muscular wall that provides elasticity. The stomach can expand to hold four times its normal volume.

More Related