Aim: How does the human digestive system maintain homeostasis?

1
Aim How does the human digestive system maintain
homeostasis?

• Do Now
• With your group draw the human digestive system
  on the chart paper
• This shows What do you know?
• Make a List of what you want to know

2
Human Digestive System
A
C
B
D
E
G
H I
F
J
K
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Figure 3810 The Digestive System
Section 38-2
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Figure 3813 The Liver and the Pancreas
Section 38-2
A
D
E
B
F
C
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Section 38-2
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purpose is digestion

• Food is the body's fuel source. The nutrients in
  food give the body's cells the energy and other
  substances they need to operate. But before food
  can do any of these things, it has to be digested
  into small pieces the body can absorb and use.

7
Digestive enzymes are..

• proteins that can break down large molecules of
  food into small units that can pass through cell
  membranes

8
Digestive system terms

• Mastication
• Peristalsis
• Chyme
• Epiglottis

9
Stomach lining is protected from acid by

• Mucous

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HW 15

• Read pages 978-984
• Summarize each page with 3 sentences
• Fill in the diagrams of the human digestive
  system