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NEW CHAPTER
Absorption, Digestion, and Exchange
CHAPTER
the BIG ideathe BIG idea
CHAPTER OUTLINE
Systems in the body obtain and process materials and remove waste.
The respiratory system gets oxygen and removes carbon dioxide.
The digestive system breaks down food.
The urinary system removes waste materials.
2.12.1
2.22.2
2.32.3
CHAPTER RESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
The respiratory system gets oxygen and removes carbon dioxide.
SECTION OUTLINESECTION OUTLINE
cellular respiration
respiratory system• Your body needs oxygen
• Structures in the respiratory system function together
• Your respiratory system is involved in other functions
trachea
bronchial tube
lung
diaphragm
2.12.1
CHAPTERRESOURCESCHAPTERRESOURCES
VISUALIZATION
Observe how movements of the diaphragm and other muscles affect the lungs.
VOCABULARY
KEY CONCEPT CHAPTER HOME
nutrient
The digestive system breaks down food.
SECTIONOUTLINESECTIONOUTLINE
digestive system
peristalsis
digestion FunctionStructure
Mouth
Esophagus
Stomach
Small intestine
Large intestine
chemical and mechanical digestion
movement of food by peristalsis from mouth to stomach
chemical and mechanical digestion; absorption of broken-down nutrients
chemical digestion; absorption of broken-down nutrients
absorption of water and broken-down nutrients, elimination of wastes
mouth
esophagus
stomach
small intestine large
intestine
2.22.2
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
nutrient
The digestive system breaks down food.
SECTIONOUTLINESECTIONOUTLINE
digestive system
peristalsis
digestion FunctionStructure
Mouth
Esophagus
Stomach
Small intestine
Large intestine
chemical and mechanical digestion
movement of food by peristalsis from mouth to stomach
chemical and mechanical digestion; absorption of broken-down nutrients
chemical digestion; absorption of broken-down nutrients
absorption of water and broken-down nutrients, elimination of wastes
mouth
esophagus
stomach
2.22.2
small intestine
CLASSZONE.COM
VISUALIZATION
Observe the process of peristalsis.
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
The urinary system removes waste materials.
SECTIONOUTLINESECTIONOUTLINE
urinary system
urine
Waste Removal
Respiratory System removes carbon dioxide
Urinary System removes wastes from body
Digestive system removes wastes from food
Skin removes water
Kidneys Urine
Kidneys
2.32.3
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
I. The respiratory system gets oxygen and removes carbon dioxide.
A. Your body needs oxygen.
C. The respiratory system is also involved in other activities.
KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY
The respiratory system gets oxygen and removes carbon dioxide.
1. Exchanging Oxygen and Carbon Dioxide
2. Cellular Respiration
B. Structures in the respiratory system function together.
1. Speech and Other Respiratory Movements
2. Water Removal
cellular respiration
respiratory system
2.12.1
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY
The digestive system breaks down food.
II. The digestive system breaks down food.
A. The body needs energy and materials.
B. The digestive system moves and breaks down food.
1. Mechanical Digestion
2. Chemical Digestion
C. Materials are broken down as they move through the digestive tract.
nutrient
digestive system
peristalsis
digestion
D. Other organs aid digestion and absorption.
2.22.2
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
III. The urinary system removes waste materials.
A. Life processes produce waste.
1. The Nephron
2. Water Balance
B. The urinary system removes waste from the blood.
KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY
The urinary system removes waste materials.
C. The kidneys act as filters.
urinary system
urine
2.32.3
CHAPTERRESOURCESCHAPTERRESOURCES
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