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Chapter 23: TE The Circulatory, Respiratory, Digestive, and Excretory Systems

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(Opening image copyright by Anne Weston, http://io9.com/#!373166/when-microscopic-blood-vessels-explode and under the Creative Commons license CC-BY-NC-ND.)

The Circulatory, Respiratory, Digestive, and Excretory Systems

Outline

Lesson 23.1: The Circulatory System

23.1.1 The Heart

  • Blood Flow Through the Heart
  • Heartbeat

23.1.2 Blood Vessels

  • Blood Vessels and Homeostasis
  • Blood Vessels and Blood Pressure

23.1.3 Pulmonary and Systemic Circulations

  • Pulmonary Circulation
  • Systemic Circulation

23.1.4 Cardiovascular Disease

  • Atherosclerosis
  • Coronary Heart Disease
  • Preventing Cardiovascular Disease

23.1.5 Blood

  • Composition of Blood
  • Blood Type

Lesson 23.2: The Respiratory System

23.2.1 Respiration

23.2.2 Organs of the Respiratory System

23.2.3 Journey of a Breath of Air

  • Ventilation
  • Pulmonary Gas Exchange
  • Gas Transport
  • Peripheral Gas Exchange
  • Back to the Lungs

23.2.4 Gas Exchange and Homeostasis

23.2.5 Regulation of Breathing

  • How Breathing Occurs
  • Control of Breathing

23.2.6 Diseases of the Respiratory System

Lesson 23.3: The Digestive System

23.3.1 Overview of the Digestive System

  • The Gastrointestinal Tract
  • Accessory Organs of Digestion
  • Functions of the Digestive System

23.3.2 The Start of Digestion: Mouth to Stomach

  • Mouth
  • Esophagus
  • Stomach

23.3.3 Digestion and Absorption: The Small Intestine

  • Digestion in the Small Intestine
  • Absorption in the Small Intestine

23.3.4 The Large Intestine and Its Functions

  • Absorption of Water and Elimination of Wastes
  • Bacteria in the Large Intestine

23.3.5 Diseases of the Digestive System

  • KQED: Hepatitis C: The Silent Epidemic

23.3.6 Food and Nutrients

  • Macronutrients
  • Micronutrients

23.3.7 Balanced Eating

  • MyPyramid and MyPlate
  • Food Labels
  • Weight Gain and Obesity
  • Eating Disorders

Lesson 23.4: The Excretory System

23.4.1 Excretion

23.4.2 Urinary System

  • Kidneys and Nephrons
  • Filtering Blood and Forming Urine
  • Excretion of Urine

23.4.3 Kidneys and Homeostasis

23.4.4 Kidney Disease and Dialysis

Pacing the Lessons

Use the Class Periods per Lesson table below as a guide for the time required to teach the lessons of this chapter.

Lesson Number of Class Periods
23.1 The Circulatory System 2.0
23.2 The Respiratory System 1.5
23.3 The Digestive System 2.5
23.4 The Excretory System 1.0
  • Class periods are assumed to be 60 minutes long.

Online Resources

See the following Web sites for appropriate laboratory activities:

1. In this lab, students will determine their own blood type. (Lesson 23.1)

2. By solving this lung toxicology problem set, students will develop a better understanding of the physiology of the respiratory system. (Lesson 23.2)

3. Students will investigate the roles of amylase and pepsin in the digestion of different foods. (Lesson 23.3)

These Web sites may also be helpful:

1. See this URL for more information about the heart and cardiovascular system.

2. This URL accesses games, puzzles, and other activities on the respiratory system.

3. This Web site provides numerous links to quizzes, animations, and articles on the digestive system.

4. This Web site provides easy online access to government information on nutrition.

Chapter Outline

Chapter Summary

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