Human Digestion

What happens in the mouth?

http://training.seer.cancer.gov/module_anatomy/images/illu_mouth.jpg

Teeth

Physical Digestion

http://www.phimatrix.com/images/i-teeth.jpg

http://www.sadanet.co.za/dhw/kidscorner/basic_facts/images/i3a.gif

Why????

Increase surface area

http://www.binary-design.de/yh/recipes/gazpacho/IMG_2839.JPG

Chemical Digestion

Salivary amylase breaks starch( Large) into maltose (smaller)

health.yahoo.com/.

http://www.elmhurst.edu/~chm/vchembook/images/546starchhydrolysis.gif

Esophagus

Peristalsishttp://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/

http://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab

Pepsin + HCl + proteins = polypeptides

Role of mucus?

http://medicineworld.org/images/blogs/gastric-stomach-ulcers-345200.jpg

http://shutterbug.ucsc.edu/sealion/albums/album234/P1010018_F.sized.jpg

Helicobacter pylori

http://microbewiki.kenyon.edu/index.php/Helicobacter

http://www.mydr.com.au/content/images/categories/gastro/stomach_normal.gif

www.gastro.com/images/Normal_duodenum.jpg

http://www.cancerhelp.org.uk/cancer_images/general2.gif

http://www.uen.org/utahlink/tours/admin/tour/13125/13125smintestineapple.jpg

http://www.uoguelph.ca/zoology/devobio/miller/013634fig8-24.gif

http://home.uchicago.edu/~jessef/nyc/jena-intestine.jpg

http://instruct.westvalley.edu/granieri/smintest.jpg

bio.bd.psu.edu/cat/Circulatory_System/vesels%...

http://www.uclan.ac.uk/facs/health/nursing/sonic/scenarios/images/GIT9.jpg

http://bio.bd.psu.edu/cat/Digestive_System/smallintestine%20and%20colon%20removed.jpg

http://www.medicinenet.com/images/ccf/Appendicitis.jpg http://www.humanillnesses.com/original/images/hdc_0001_0001_0_img0023.jpg