The Digestive System

By: Leighton Weber

The Organs

• The esophagus, the liver, the stomach, the small intestine, the large intestine, the pancreas and the gallbladder.

The Mouth

• The food’s journey through your body all starts in your mouth.

• You chew the food which breaks down the food into smaller pieces.

• While that is happening, your tongue is mixing saliva into the food.

The Stomach

• In the stomach, food is mixed with enzymes, which helps break the food down.

• Food moves through your stomach in two to four hours being changed into chyme.

Small Intestine

• First bile is added to the chyme. The bile breaks up the large particles in the chyme.

• On the walls of the small intestine are villi. • Molecules of nutrients move into blood

vessels within the villi.

Large Intestine

• In the large intestine water is removed from the chyme and it becomes a solid.

• Then it exits through the rectum.

The Purpose

• The purpose of the digestive system is to break down food.

Other Systems

• The digestive system works with the circulatory system because nutrients from the food is carried through out the body through blood.

• It also works with the excretory system because the excretory system removes waste made from food.

My Model

• I made my model out of newspaper, masking tape, and paint.

• My model is a one to one scale of the average 12 to 13 year olds digestive system.

Sources• https://www.google.com/search?q=mouth&hl=en&rls=com.microsoft:en-us:IE-SearchBox&prmd=imvns&source=lnms&tbm=isch&ei=q

g5xT-WKEuGQsAKTpq3eDg&sa=X&oi=mode_link&ct=mode&cd=2&ved=0CBgQ_AUoAQ&biw=1024&bih=567

• http://www.google.com/imgres?hl=en&rls=com.microsoft:en-us:IE-SearchBox&biw=1024&bih=567&tbm=isch&tbnid=uRaNeVBRR10iYM:&imgrefurl=http://genericlook.com/anatomy/Stomach/&docid=48TnL3UYtoLGcM&imgurl=http://genericlook.com/img/uploads/anatomy/stomach.gif&w=300&h=243&ei=kQ9xT5DDDeyPsALotNHADg&zoom=1&iact=hc&vpx=527&vpy=92&dur=2891&hovh=194&hovw=240&tx=127&ty=96&sig=109193210257834393947&page=2&tbnh=169&tbnw=209&start=8&ndsp=12&ved=1t:429,r:2,s:8

• http://www.google.com/imgres?hl=en&rls=com.microsoft:en-us:IE-SearchBox&biw=1024&bih=567&tbm=isch&tbnid=PN2f2iG-DEGP-M:&imgrefurl=http://web.iiit.ac.in/~harshit/HCI/034.htm&docid=Pm-DoHAkQ66PRM&imgurl=http://web.iiit.ac.in/~harshit/HCI/images/034.gif&w=260&h=260&ei=xxBxT9SDMISOsQLRpIHWDg&zoom=1&iact=hc&vpx=560&vpy=166&dur=359&hovh=208&hovw=208&tx=96&ty=103&sig=109193210257834393947&page=4&tbnh=157&tbnw=157&start=32&ndsp=13&ved=1t:429,r:2,s:32

• http://www.google.com/imgres?hl=en&rls=com.microsoft:en-us:IE-SearchBox&biw=1024&bih=567&tbm=isch&tbnid=PN2f2iG-DEGP-M:&imgrefurl=http://web.iiit.ac.in/~harshit/HCI/034.htm&docid=Pm-DoHAkQ66PRM&imgurl=http://web.iiit.ac.in/~harshit/HCI/images/034.gif&w=260&h=260&ei=xxBxT9SDMISOsQLRpIHWDg&zoom=1&iact=hc&vpx=560&vpy=166&dur=359&hovh=208&hovw=208&tx=96&ty=103&sig=109193210257834393947&page=4&tbnh=157&tbnw=157&start=32&ndsp=13&ved=1t:429,r:2,s:32

• http://www.google.com/imgres?hl=en&rls=com.microsoft:en-us:IE-SearchBox&biw=1024&bih=567&tbm=isch&tbnid=pBdApjB3BsvTDM:&imgrefurl=http://www.enchantedlearning.com/subjects/anatomy/digestive/&docid=0s9AgJoCkXqYNM&imgurl=http://www.enchantedlearning.com/subjects/anatomy/digestive/color.GIF&w=395&h=367&ei=JBJxT-PtK-_jsQKPsNm-Dg&zoom=1&iact=hc&vpx=253&vpy=107&dur=1672&hovh=216&hovw=233&tx=137&ty=126&sig=109193210257834393947&page=1&tbnh=167&tbnw=181&start=0&ndsp=10&ved=1t:429,r:1,s:0

• http://www.google.com/imgres?hl=en&rls=com.microsoft:en-us:IE-SearchBox&biw=1024&bih=567&tbm=isch&tbnid=iO6H0W6eds8WbM:&imgrefurl=http://www.childrenscolorado.org/wellness/info/kids/21825.aspx&docid=Z_wGWxu6Y0cYWM&imgurl=http://www.childrenscolorado.org/imgs/KidsHealth/kid/body/images_55926/1079619327186.GI_system275.gif&w=275&h=267&ei=JBJxT-PtK-_jsQKPsNm-Dg&zoom=1&iact=hc&vpx=431&vpy=199&dur=641&hovh=213&hovw=220&tx=136&ty=188&sig=109193210257834393947&page=1&tbnh=150&tbnw=154&start=0&ndsp=10&ved=1t:429,r:7,s:0

• Biggs, Alton. “Unit 5, Chapter 16”, Texas Science, New York, NY: Glencoe/McGraw-Hill, 2002. Print.• http://wiki.answers.com/Q/What_other_systems_work_with_the_digestive_system

Thank You For Watching My Presentation Over The

Digestive System!

Any Questions or Comments?