About This Chapter
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
- 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.
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.
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!
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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Other chapters within the Praxis Middle School Science (5440): Practice & Study Guide course
- Praxis Middle School Science: Scientific Methodology
- Praxis Middle School Science: Matter
- Praxis Middle School Science: Energy
- Praxis Middle School Science: Thermodynamics
- Praxis Middle School Science: Atomic Structure
- Praxis Middle School Science: Mechanics in Physics
- Praxis Middle School Science: Newton's Laws of Motion
- Praxis Middle School Science: Laws of Gravitation
- Praxis Middle School Science: Work, Energy & Power
- Praxis Middle School Science: Fluid Mechanics
- Praxis Middle School Science: Electrical Forces & Fields
- Praxis Middle School Science: Magnetism & Electricity
- Praxis Middle School Science: Waves & Optics
- Praxis Middle School Science: Periodic Table
- Praxis Middle School Science: Chemical Bonding & Compounds
- Praxis Middle School Science: Gases
- Chemical Equations & Stoichiometry
- Praxis Middle School Science: Chemical Kinetics
- Praxis Middle School Science: Chemical Equilibrium
- Praxis Middle School Science: Oxidation Reduction
- Praxis Middle School Science: Acid-Base Chemistry
- Praxis Middle School Science: Solutions & Solubility
- Praxis Middle School Science: Cell Biology
- Praxis Middle School Science: Prokaryotic Cells
- Praxis Middle School Science: Protists, Fungi & Viruses
- Praxis Middle School Science: Biochemistry
- Praxis Middle School Science: Basic Genetics
- Praxis Middle School Science: Evolution
- Praxis Middle School Science: Biological Classification
- Praxis Middle School Science: Plant Cells
- Praxis Middle School Science: Plant Structures & Functions
- Praxis Middle School Science: Homeostasis of Organisms
- Praxis Middle School Science: Human Reproduction & Development
- Praxis Middle School Science: Key Aspects of Ecology
- Praxis Middle School Science: Biodiversity
- Praxis Middle School Science: Minerals & Rocks
- Praxis Middle School Science: Changes to Earth's Surfaces
- Praxis Middle School Science: Earth's Structure
- Praxis Middle School Science: Historical Geology
- Praxis Middle School Science: Bodies of Water
- Praxis Middle School Science: Meteorology & Climate
- Understanding Climate Change
- The Earth, Moon & Sun
- Celestial Bodies in Our Solar System
- The Big Bang & Extrasolar Astronomy
- Praxis Middle School Science: Technology & Society
- Praxis Middle School Science Flashcards