Aim: How does the human digestive system maintain homeostasis?

1
Aim How does the human digestive system maintain
homeostasis?

• Do Now
• Draw the human digestive system on
• loose leaf paper
• This shows what you Know?
• Write 2 questions of what you want to know about
  your digestive system

2
Human Digestive System
A
C
B
D
E
G
H I
F
J
K
3
Figure 3810 The Digestive System
Section 38-2
4
Figure 3813 The Liver and the Pancreas
Section 38-2
A
D
E
B
F
C
5
Section 38-2
6
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 molecules 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
• Epiglottis
• Peristalsis
• Chyme

9
Stomach lining is protected from acid by

• Mucous

10
HW 15

• Read pages 978-984
• Answer assessment questions 1-4
• Fill in the diagrams of the human digestive
  system

11
Aim How are the human systems organized in the
body?

• Task
• Cut out the parts of the digestive system.
• Glue or tape them in your notebook