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Ch 43: Nervous, Immune & Endocrine Systems - ORELA Middle Grades General Science

About This Chapter

In this chapter, you can brush up on your knowledge of the nervous, immune and endocrine systems by watching engaging video lessons. Review homeostasis, brain structures and more as you study for the ORELA Middle Grades General Science assessment.

Nervous, Immune & Endocrine Systems - ORELA Middle Grades General Science - Chapter Summary

Enjoy this in-depth look at the nervous, immune and endocrine systems as you prepare to answer related questions on the ORELA Middle Grades General Science assessment. After watching the lessons, you will be prepared for the following:

  • Understanding homeostasis of glucose levels and temperature regulation in humans
  • Describing functions of the nervous system and the structure and function of neurons
  • Examining the central, peripheral, sympathetic and parasympathetic nervous systems
  • Analyzing brain structures and functions
  • Identifying parts of the brain stem, examining innate immunity and understanding acquired immunity
  • Discussing antibiotics, vaccines, flu viruses, HIV, immune system evasions and pathogens

You can tailor the lessons to suit your studying needs. Watch them in any order and as often as you'd like. Timelines are located below the videos that allow you to visit key topics as you work to absorb lesson concepts.

Nervous, Immune & Endocrine Systems - ORELA Middle Grades General Science Chapter Objectives

In Oregon, prospective middle school science educators are required to take the ORELA Middle Grades General Science assessment to secure educator licensure that enables them to teach the subject in the classroom. The assessment consists of 150 multiple-choice questions and is taken on a computer.

Topics covered in this chapter on the nervous, immune and endocrine systems are found in the life science content domain of the test, which constitutes approximately 25% of the total assessment. Increase your chances of earning a passing score of 228 or higher by reviewing the lessons in video form or via transcripts that feature helpful vocabulary words. You can test your comprehension of the lessons by taking short quizzes and a chapter exam.

14 Lessons in Chapter 43: Nervous, Immune & Endocrine Systems - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
Homeostasis and Temperature Regulation in Humans

1. Homeostasis and Temperature Regulation in Humans

Do you wonder how your body is able to maintain a consistent temperature? Have you ever questioned why you get goosebumps when you're cold? This lesson will introduce you to homeostasis and answer your questions about body temperature regulation and reactions, like goosebumps.

Homeostasis of Glucose Levels: Hormonal Control and Diabetes

2. Homeostasis of Glucose Levels: Hormonal Control and Diabetes

In this lesson, we'll look at how the body uses hormones to maintain homeostasis of blood glucose levels, what happens in people who have diabetes, and how diabetics can manage their disease.

Functions of the Nervous System

3. Functions of the Nervous System

In this lesson, we'll watch Timmy as he plays in his backyard. Watch what happens when he tries to catch a butterfly, hears a mean dog bark, and scrapes his knee. All of Timmy's reactions are tied to his nervous system. For a full explanation of what goes on in the human nervous system, check out the video!

The Structure and Function of Neurons

4. 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.

The Central and Peripheral Nervous Systems

5. The Central and Peripheral Nervous Systems

Did you know that hammerhead sharks and platypuses share a special type of sensory neuron that humans and most other animals don't have? In this lesson, you'll find out what that sensory neuron and a whole lot of others can do. You'll also learn how the nervous system is organized and the differences between the central and peripheral nervous systems.

The Sympathetic and Parasympathetic Nervous Systems

6. The Sympathetic and Parasympathetic Nervous Systems

In this lesson, you'll learn about two subdivisions of the autonomic nervous system - the sympathetic and parasympathetic nervous systems. Watch as a hiker, Phil, runs away from a terrifying bear and see how these systems react to the impending danger!

Brain Structures and Functions Part I

7. Brain Structures and Functions Part I

The brain's complexity can often be difficult to understand because it serves so many important functions. In this lesson, you'll get a little help from Nrr, the alien biologist, who will guide you through understanding the structure and functions of the human brain.

The Cerebral Cortex: Brain Structures and Functions Part II

8. The Cerebral Cortex: Brain Structures and Functions Part II

Check out this video lesson to learn about the four lobes of the human brain - the frontal, parietal, occipital and temporal. You'll learn about the functions and processes of each region.

Parts of the Brain Stem: The Medulla Oblongata and Pons

9. Parts of the Brain Stem: The Medulla Oblongata and Pons

In this lesson, we'll learn how you are able to breathe without even thinking about it. You'll also find out why you breathe faster when you run. Finally, we'll learn where things as diverse as sneezing and blood pressure are controlled.

Innate Immunity: Inflammation, Neutrophils & Natural Killer Cells

10. Innate Immunity: Inflammation, Neutrophils & Natural Killer Cells

You might already know how your body handles known infectious agents but how about unknown? Watch this video to explore your innate immune system - your body's defense against new bacteria and viruses.

Acquired Immunity: T Cells, B Cells and Antibodies

11. Acquired Immunity: T Cells, B Cells and Antibodies

Have you ever wondered why some people don't ever seem to get sick? These people likely have an acquired immunity. Learn more about the immune system and how exposure to an illness one time can help your body to prevent that illness from ever occurring again.

Antibiotics and Vaccines

12. Antibiotics and Vaccines

Do you know why children must get regularly vaccinated? Have you ever wondered how an antibiotic works and why they are so widely prescribed? If so, this lesson will help you to understand how changes in medicine have almost eliminated several deadly diseases and added decades to the average person's lifespan.

Flu Viruses, HIV and Immune System Evasion

13. Flu Viruses, HIV and Immune System Evasion

Why is it that our immune systems can protect us from some viruses but not others? We've eradicated smallpox by using vaccines, so why do influenza and HIV remain such dangerous health risks? In this lesson about viruses, we'll explore these questions and learn how influenza and HIV continue to evade the human immune system.

Pathogens: Antibiotic Resistance and Virulence

14. Pathogens: Antibiotic Resistance and Virulence

Find out more about how the overuse of antibiotics could lead to some serious problems with epidemics or untreatable diseases in the future. You can also discover some of the things that make pathogens harmful and why pathogens don't cause disease in every species they infect.

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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Other Chapters

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