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Ch 38: Praxis Middle School Science: Human Body Systems

About This Chapter

Let us help you prepare for the questions about human body systems you may encounter on the Praxis Middle School Science exam. Our video lessons and self-assessment quizzes will help you feel confidently-prepared on test day.

Praxis Middle School Science: Human Body Systems - Chapter Summary

Our lessons are videos made by expert instructors. They're specifically designed to be fun but effective and brief but thorough. The instructors will help walk you through the essential concepts of human body systems so you can feel ready for any anatomy question you may encounter on the Praxis Middle School Science test. The videos cover the following topics in human biology:

  • Multicellular organisms
  • Connective tissue types
  • Nervous, skeletal, muscular, circulatory, immune, gastrointestinal, and excretory systems' structures and functions
  • Animal body plans by classification
  • Respiratory gas exchange
  • Neuronal structure and function
  • Homeostasis
  • Inflammation & antibodies
  • Vaccines, antibiotics and pathogens

The video lessons are easy to navigate, and you can jump between sections of the videos. This makes it easy to go back over any problem areas you find after taking the self-assessment quizzes.

Praxis Middle School Science: Human Body Systems Chapter Objectives

The Praxis Middle School Science exam tests your knowledge and comprehension of science and determine syour qualifications for certification to teach science to middle schoolers. The topics covered in this chapter on human body systems correspond to objectives tested in the life sciences section of the exam, which constitutes about 24% of the score (and includes other life sciences topics besides human anatomy and physiology).

Objectives pertaining to human body systems that may be evaluated in the life sciences section of the exam include homeostasis; respiratory, excretory and digestive exchange with the environment; internal transport and exchange of the circulatory system; movement and support of the human body; reproduction and development; immune system; control of the human body by the nervous and endocrine systems; characteristic and defining organismal behavior such as response to stimuli and major differences between humans and animals. The Praxis test is computer-based with 125 total questions.

14 Lessons in Chapter 38: Praxis Middle School Science: Human Body Systems
Test your knowledge with a 30-question chapter practice test
Multicellular Organisms, Tissues and Epithelium

1. Multicellular Organisms, Tissues and Epithelium

In this lesson on multicellular organisms, you'll take a look at what it actually means to be multicellular and how cells are organized into tissues, organs, and organ systems. This lesson also covers one of the four main tissue types: epithelial tissue.

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!

Skeletal System and Muscular System

3. Skeletal System and Muscular System

Do you know how many bones are in the human body? Check out this video lesson to uncover the answer, as well as understand the role and importance of the skeletal and muscular systems.

Animal Body Plans: Classifications and Features

4. Animal Body Plans: Classifications and Features

The Animal Kingdom is diverse and complex. How do we make sense of it all? Scientists use body plans to classify and organize the animals of Earth, making it much easier to differentiate between them.

The Human Circulatory System: Parts and Functions

5. 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.

Gas Exchange in the Human Respiratory System

6. Gas Exchange in the Human Respiratory System

Did you know that the average human lung has a respiratory surface area that is roughly the same size as half of a tennis court? Believe it or not, that's how much surface area an active, healthy human needs to ensure that the body gets plenty of oxygen.

The Human Gastrointestinal Tract

7. The Human Gastrointestinal Tract

Would you like to know what happens to your lunch after you eat it? Watch this video as we take a trip through your gastrointestinal tract and learn when and where the foods you eat get broken down and separated into usable nutrients and wastes.

Excretory System

8. 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.

The Human Nervous System: Parts & Functions

9. The Human Nervous System: Parts & Functions

Your nervous system allows you to experience the world around you and react to it. It's a complex system that's split into two main parts, the central nervous system and the peripheral nervous system. Read on to learn the parts and functions of the system.

The Structure and Function of Neurons

10. The Structure and Function of Neurons

In this video lesson, you'll learn about neurons, which are specialized cells in the nervous system. Check out how far neurons can send signals throughout the body and how depolarization is much like 'the wave' at a football game.

Homeostasis in the Human Body

11. Homeostasis in the Human Body

Homeostasis is the term we use to describe the reasonably stable internal environment of your body. Learn how parts of your body communicate with each other to maintain this state of homeostasis, and how negative feedback loops work.

The Human Brain: Structure & Functions

12. The Human Brain: Structure & Functions

The human brain can be divided into three sections. In this lesson, we'll examine the hindbrain, midbrain, and forebrain, as well as the major structures in each. We'll also cover the functions of major brain structures.

The Human Immune System: Inflammation & Antibodies

13. The Human Immune System: Inflammation & Antibodies

A body as efficient as ours deserves an equally efficient immune system to protect it. Luckily for us, the efficiency of the immune system is its greatest strength, as this lesson demonstrates.

Pathogens, Viruses, Antibiotics & Vaccines

14. Pathogens, Viruses, Antibiotics & Vaccines

Pathogens, including viruses, are the cause of much of the sickness in the world today. Luckily, in the last few decades we have developed a range of tools to use against them, especially antibiotics and vaccines.

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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