Ch 1: MEGA Health: Overview of the Human Body

About This Chapter

Review the basic anatomy and functions of the human body with the easy-to-understand lessons in this MEGA Health study guide chapter. The simplified format of these video lessons and practice quizzes break down the study material into understandable concepts leaving you well prepared on exam day.

MEGA Health: Overview of the Human Body - Chapter Summary

While there are many parts and functions to the human body, gaining a thorough comprehension of them is achievable with this MEGA Health study guide chapter. Watch the video lessons to examine:

  • Structure and function of human skin and types of connective tissue
  • Functions of the skeletal, muscular and nervous systems
  • Purpose and composition of joints
  • Parts of the heart and cardiac cycle
  • Responsibilities of the lymphatic and excretory systems
  • Gross anatomy of the lungs and airway
  • Components and functions of the upper and lower digestive systems
  • Kidney and urinary system structures and functions

In order to adequately teach health education, you must have a foundational understanding of the human body and its functions. With the detailed overview provided in this chapter, you can improve your knowledge in this area to be prepared for both the MEGA Health exam and to teach the material in a classroom environment. Use the chapter exam and lesson quizzes, as well as full video transcripts with highlighted vocabulary words to ensure complete material comprehension.

MEGA Health: Overview of the Human Body Chapter Objectives

The Missouri Educator Gateway Assessments (MEGA) for health education is required for public school educators wishing to teach health. This assessment determines if applicants meet the knowledge and skill requirements in this specific field that align with the state's teaching standards and curriculum. This is a computer-based exam with 100 multiple-choice questions that must be completed within two hours. There are four domains tested on the exam, one of which is Healthy Growth and Development. This study guide chapter provides an overview of the human body which is a part of this domain. This domain accounts for approximately 30% of the total questions presented on the exam.

Get the most use out of this study guide chapter by thoroughly examining the video lessons, using the lesson quizzes and chapter exam as practice opportunities and reviewing any information needed for complete understanding. Our instructors are also always available to answer any questions to ensure you are completely prepared and confident for the exam.

15 Lessons in Chapter 1: MEGA Health: Overview of the Human Body
Test your knowledge with a 30-question chapter practice test
Human Skin: Layers, Function & Structure

1. Human Skin: Layers, Function & Structure

This lesson will cover the three main layers of your skin, which includes the epidermis, dermis, and subcutis. In addition, we'll learn about other skin cells and tissue, such as adipose tissue, keratinocytes, melanocytes, and Merkel's cells.

Types of Connective Tissue

2. Types of Connective Tissue

In this lesson, you'll learn about the various types of connective tissues in the body. These tissues include bone, fat, cartilage and blood. They form the framework of the body, support organs and much, much more!

The Skeletal System: Function and Terms

3. The Skeletal System: Function and Terms

You'll learn about the two major divisions of our skeleton, the axial and appendicular skeleton, in this video lesson. In addition, you will find out how bone is formed, thanks to tiny little cells called osteoblasts and osteoclasts, and what the major parts of a long bone are.

Joints: Structure and Functions

4. Joints: Structure and Functions

Find out what part of your body is affected when you tear your meniscus, how synovial fluid is made, what the synovial membrane helps to comprise, what a joint is, and why a joint capsule is important.

What Is the Muscular System? - Function & How Muscles Work in Groups

5. What Is the Muscular System? - Function & How Muscles Work in Groups

Ever feel overwhelmed when you look at all those muscles in your textbooks? Well, if you do, then maybe learning a little about their anatomy and organization and how they work together will help you sort through it all. In this lesson, learn about the muscle itself and how it works with others to help the muscular system function.

Nervous System Overview: Central & Peripheral

6. Nervous System Overview: Central & Peripheral

What happens in your nervous system when you react to stimuli? Did you know that the brain is sometimes uninvolved with reflexes? Find out the answer to these questions, and more, in this lesson on the human nervous system.

Anatomy of the Heart: Blood Flow and Parts

7. 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.

The Cardiac Cycle: Phases, Explanation & Terms

8. The Cardiac Cycle: Phases, Explanation & Terms

In this lesson, you will learn what happens during each heartbeat, or cardiac cycle. You will also learn that the heartbeat involves periods of relaxation and contraction, known as diastole and systole, respectively.

Functions of the Lymphatic System

9. 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.

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

10. 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.

Digestive System I: The Upper Gastrointestinal Tract

11. Digestive System I: The Upper Gastrointestinal Tract

Did you know that there are digestive enzymes in your saliva? It's true. As soon as you put a piece of food in your mouth, the digestive process begins. Join us with this first of two lessons about the human digestive system, where we'll follow food through the upper gastrointestinal tract from the mouth through the stomach.

Digestive System II: The Lower Gastrointestinal Tract

12. Digestive System II: The Lower Gastrointestinal Tract

The lower gastrointestinal tract is the part of the digestive system that is responsible for the last part of food digestion and the expulsion of waste from the body. In this lesson, we'll look at each part of the system and what functions each serves in the process of digestion.

Excretory System

13. Excretory System

Each year in the U.S., close to 400,000 people with kidney failure undergo dialysis treatment in order to remove waste, remove excess fluid and restore electrolyte balance. Kidneys, the workhorses of the excretory system, perform these same functions more effectively than any machine. In this lesson, we'll talk about how the excretory system removes toxic substances from the body.

Gross Anatomy of the Urinary System

14. Gross Anatomy of the Urinary System

Our body must detoxify and cleanse itself to thrive. That is why we depend so heavily on our liver and urinary system. In this lesson, we'll explore how toxins are filtered by our organs and how urine is formed and expelled with the nephron, bladder, ureters, and urethra.

Kidneys: Structure & Function

15. Kidneys: Structure & Function

Your kidneys don't get a lot of attention, but they are important to your health. Learn about your kidneys and the jobs they do, like filtering wastes out of your blood, balancing fluids, adjusting your blood pressure and helping to make blood cells.

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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