About This Chapter
TExES Life Science: Human Body Systems - Chapter Summary
In our chapter on human body systems, you'll review key concepts related to the human body for the TExES Life Science exam. Our instructors have created video lessons that are brief enough that you can squeeze them into short breaks throughout your busy day. While brief, these lessons are still thorough in their review of:
- Tissues, epithelium and connective tissue of multicellular organisms
- Key features of animal body plans
- Structure and basic functions of the human musculoskeletal, circulatory, gastrointestinal, excretory and nervous systems
- How gas exchange occurs in the human respiratory system
- Neuron anatomy and function
- Regulation and significance of homeostasis
- How the human immune system responds to pathogens, antibiotics and vaccines
Each of the lessons has a corresponding quiz to help you identify weak areas in your comprehension or boost your confidence in your preparation. You can watch the videos as many times as you need and you can contact our instructors if you have any questions.
TExES Life Science: Human Body Systems - Chapter Objectives
The State of Texas uses the TExES Life Science test for teacher certification and endorsement in science. The test is computer-administered, and includes 100 multiple choice questions. You'll have 5 hours to complete all 6 domains.
The fourth domain, The Diversity of Life, will assess, among other topics, the test-taker's ability to compare methods of various organisms of obtaining, transporting, storing and eliminating energy and matter, as well as the ability to analyze characteristics, functions and relationships of organ systems. Additionally, the test will assess understanding of homeostasis in terms of its significance, the feedback systems, anatomical structures and physiologic processes involved and the role of pathogens and other microorganisms in its maintenance. We have aligned our lesson content as much as possible with these test objectives.
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.
Earning College Credit
Did you know… We have over 160 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the TExES Life Science 7-12 (238): Practice & Study Guide course
- TExES Life Science: Overview of the Field
- TExES Life Science: Scientific Inquiry
- TExES Life Science: Lab Equipment, Processes & Safety
- TExES Life Science: Scientific Systems & Models
- TExES Life Science: Matter & Atomic Structure
- TExES Life Science: Cell Biology
- TExES Life Science: Prokaryotic Cells
- TExES Life Science: Cell Communication
- TExES Life Science: Inorganic Chemistry
- TExES Life Science: Organic Compounds
- TExES Life Science: Nucleic Acids
- TExES Life Science: Enzymes
- TExES Life Science: Protists, Fungi & Viruses
- TExES Life Science: Metabolic Biochemistry
- TExES Life Science: DNA Replication
- TExES Life Science: DNA Transcription & Translation
- TExES Life Science: Cell Cycle & Division
- TExES Life Science: Genetics & Heredity
- TExES Life Science: Genetic Mutations
- TExES Life Science: Biological Evolution
- TExES Life Science: Taxonomy & the Diversity of Life
- TExES Life Science: Plant Cells
- TExES Life Science: Plant Biology
- TExES Life Science: Plant Reproduction & Growth
- TExES Life Science: Animals
- TExES Life Science: Human Reproduction & Development
- TExES Life Science: Homeostasis of Organisms
- TExES Life Science: Biology & Behavior
- TExES Life Science: Interdependence of Life & Environmental Systems
- Learning & Instruction for the Science Classroom
- TExES Life Science 7-12 Flashcards