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Transcript
Human Digestive
System
Created By: Denise Zivkovic and
Sydney Stirling
Overall:
Digestion is the process
by which molecules
are broken down and
used by the body.
Digestive Tract is about 7
meters long, that’s
about 24 feet!
Mouth:
Chemical and mechanical
digestion
The Digestive tract
begins at the mouth
Salivary Duct
Teeth, jawbone, and
tongue
Pharynx:
Also known as the
throat
Connects mouth to
the esophagus
and trachea
Esophagus:
Connection from
throat to the
stomach
Closed at the top
except during
swallowing
Muscle contractions
Stomach:
J-shaped ‘bag’
Secretes about 5 pints of
gastric juice each day
Connection to the small
intestine
Mechanical and chemical
digestion
Small Intestine:
About 5 meters long, that’s 17
feet of digestive tract!
Connects to the large intestine
Consists of the duodenum,
jejunum, and ileum
Chemical digestion
Absorption of nutrients
Large Intestine:
About 1.5 meters long, that’s
5 feet!
Connected to the small
intestine
Consists of the colon and
rectum
Undigested food is formed
into feces
Support in Homeostasis:
Digestion breaks down food
into smaller molecules
that the body can use for
nutrients.
Digestion, always in Action
https://www.youtube.com/watch?v=b20VRR9C37Q
Bibliography
"8. Types of Tissue." Digestive-System-MPRR. Tangient LLC, n.d. Web. 15 May 2016.
<https%3A%2F%2Fdigestive-system-mprr.wikispaces.com%2F8.%2BTypes%2Bof%2BTissue>.
"Your Digestive System and How It Works." National Institute of Diabetes and Digestive and Kidney
Diseases. N.p., n.d. Web. 15 May 2016. <http://www.niddk.nih.gov/health-information/healthtopics/Anatomy/your-digestive-system/Pages/anatomy.aspx>.
“Structure and Function: The Digestive System.” Aviva. Complete Home Medical Guide Dorling
Kindersley. 16 May 2016. <http://www.aviva.co.uk/health-insurance/home-of-health/medicalcentre/medical-encyclopedia/entry/structure-and-function-the-digestive-system/>.