Download Organs of Digestion - Mrs. GM Biology 300

Organs of Digestion
Name ____________________________
Period _________ Date ____________
Go to the Organs of Digestion website from the link on our class website. It is at: http://highered.mcgrawhill.com/sites/0072495855/student_view0/chapter26/animation__organs_of_digestion.html
Play the movie. Push pause at the end of each section so that you can answer the questions about each section.
Introduction
1.
What are the 2 primary functions of digestion?
a. _________________________________________________
b.
_________________________________________________
Oral Cavity
2.
What is the “oral cavity” commonly called? ______________
3.
What is “mastication” commonly called? _________________
4.
Saliva is made by the ______________ ________________.
5.
What are the two functions of saliva?
a. __________________________________________________
b.
__________________________________________________
6.
The _______________ prevents food from entering the respiratory system.
7.
The food then passes through the _____________________ (throat) and into the ____________________ (tube) which leads to the
_____________________.
8.
The moistened food mass or __________________ is moved through the esophagus by muscular contractions called
__________________.
Stomach
9.
From the esophagus, the bolus goes to the _____________________.
10. The stomach lining is folded into _________________ which allow it to expand.
11. Stomach cells produce ____________________, ______________ acid, and ________________________that
____________________ digest the bolus.
12. The stomach churns, mixing its contents which change into a thick liquid called _____________________.
Small Intestine.
13. The chyme leaves the stomach through the ___________________ __________________ and enters the ___________________
________________.
14. The small intestine is the major site for _______________ ___________________.
15. The 3 parts of the small intestine are the: _____________________________, the ___________________, and the
_______________________________.
Liver and Pancreas
16. ____________________ from the liver and ______________ ________________ from the pancreas enter into the small intestine
to help with digestion.
17. Nutrients are absorbed through the ______________ (lining) and into the blood and lymph (fluid) of the body.
Large Intestine
18. What is left of the chyme passes into the _______________ ______________.
19. ______________ and __________________ are absorbed, turning the chyme into __________________.
20.
Feces are stored in the _____________________ until they are eliminated through the _______________ _______________ (anus).
Now click on “Go to Interactive”.
Click on the liver (reddish-brown organ).
21.
The liver produces ________________. Bile is stored in the ___________ ________________ until it is released into the small
intestine. Does digestion occur in the liver? ____________
22. Bile is delivered to the ____________ _______________ through the bile duct.
23. Bile ______________________ fat (breaks it into small droplets).
24. The liver also removes unwanted substances (toxins) from your ____________.
Click on the Gall Bladder (green).
25.
The duct (tube) leaving the gall bladder connects to one leaving the _______ (yellow). Does digestion occur in the gall bladder? ___
Click on the pancreas (yellow)
26.
The pancreas manufactures a mixture of digestive __________________ that break ____________________,
______________________, and _______________________ into small particles. Does digestion occur in the pancreas? _________
27.
The digestive enzymes from the pancreas reduce the size of ___________________, ____________________,
__________________________, making them easier to absorb.
28.
The pancreas also produces bicarbonate which neutralizes the _______ in the chyme so it doesn’t cause an ulcer in the
____________ _______________.
(Where did the chyme become acidic? __________________)
29.
The liver, gall bladder, and pancreas are called ____________________.