Ch 45: Holt McDougal Modern Biology Chapter 46: Cirulatory and Respiratory Systems

About This Chapter

The Circulatory and Respiratory Systems chapter of this Holt McDougal Modern Biology textbook companion course helps students learn the essential modern biology lessons of the circulatory and respiratory systems. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Circulatory and Respiratory Systems textbook chapter.

How it works:

  • Identify the lessons in the Holt McDougal Modern Biology Circulatory and Respiratory Systems chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the circulatory and respiratory system topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Parts and purpose of the human circulatory system
  • Types of blood vessels
  • Anatomy of the heart
  • Functions of the lymphatic system
  • Functions of platelets, red blood cells and white blood cells
  • Blood types
  • Gross anatomy of the airway and lungs
  • Internal and external respiration in the lungs
  • Function of ventilation muscles

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9 Lessons in Chapter 45: Holt McDougal Modern Biology Chapter 46: Cirulatory and Respiratory Systems
Test your knowledge with a 30-question chapter practice test
The Human Circulatory System: Parts and Functions

1. The Human Circulatory System: Parts and Functions

In this lesson, you will take a ride on the transportation system of the body called the circulatory system and its two parts: the pulmonary circuit and the systemic circuit. Take a look inside and see how every inch of your body receives the oxygen and nutrients it needs.

Blood Vessels: Arteries, Capillaries & More

2. Blood Vessels: Arteries, Capillaries & More

In this lesson, you will take a trip around the circulatory system and encounter the various blood vessels, including arteries, veins, and capillaries. Come along as we follow the path to every cell of your body.

Anatomy of the Heart: Blood Flow and Parts

3. Anatomy of the Heart: Blood Flow and Parts

In this lesson, you will take a look inside the heart and identify the chambers and one-way valves that make up this vital organ. You will also follow along as we trace the flow of blood through the heart chambers.

Functions of the Lymphatic System

4. Functions of the Lymphatic System

In this lesson, you will learn about the lymphatic system and the vital role it plays in keeping the cardiovascular system working. You'll discover how the lymphatic system (with its lymphatic vessels and capillaries) quietly works in the background to return leaked fluids back to the blood.

Functions of Red Blood Cells, White Blood Cells & Platelets

5. Functions of Red Blood Cells, White Blood Cells & Platelets

Blood is a connective tissue vital to our body's survival. In this lesson, we will explore the three functions of blood by delving into red blood cells, white blood cells and platelets - the three individual components that make up blood as a whole.

Blood Types: ABO System, Red Blood Cell Antigens & Blood Groups

6. Blood Types: ABO System, Red Blood Cell Antigens & Blood Groups

You are either blood type A, B, AB or O. But, did you know that your blood type is determined by microscopic antigens found on your red blood cells? In this lesson, you will learn about the different blood groups and why they do not mix.

Gross Anatomy of the Airway and Lungs: Conducting & Respiratory Zones

7. Gross Anatomy of the Airway and Lungs: Conducting & Respiratory Zones

The respiratory system includes the lungs as well as other organs that help to get oxygen into the blood and carbon dioxide out of the blood. The conducting zone of the respiratory system carries oxygen into the lungs and carbon dioxide out of the lungs. The respiratory zone is where oxygen and carbon dioxide move into and out of the blood.

External and Internal Respiration in the Lungs: Definition & Process

8. External and Internal Respiration in the Lungs: Definition & Process

This lesson explores the process by which oxygen and carbon dioxide get into and out of the blood located in the lungs and in our metabolizing tissues. The partial pressure gradient for each gas determines both the direction and rate of diffusion across the respiratory membrane.

How Ventilation Muscles Cause Inspiration and Expiration

9. How Ventilation Muscles Cause Inspiration and Expiration

What is ventilation? It includes both inspiration and expiration, the movement of air into and out of our lungs. In this lesson, learn about how the diaphragm contracts and relaxes and its impact on lung volume.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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