About This Chapter
Human Body Organs & Systems - Chapter Summary
In this chapter's lessons our knowledgeable instructors will review basic things like what constitutes an organ system and the essential components of each major organ system in the human body. Whether you're preparing for an important exam necessary for your chosen career, or you just need some extra help to get through a human anatomy class, you can benefit from our study guide.
Our expert instructors have created the videos to be brief but thorough. They also strive to make them enjoyable for you because they love their job! So get ready for a trip through the human body with our subject matter experts as your guide. Upon completion of this chapter, you should be able to demonstrate understanding of:
- Parts and functions of the human circulatory system
- How and where gas exchange occurs in the human respiratory system
- The digestive processes and key players of the upper and lower gastrointestinal system
- How waste is formed and excreted by the human body
- The function and regulation of the endocrine and nervous systems
- The fundamental components of the lymphatic system
- How the muscular and skeletal systems enable mobility in humans
We believe in simplifying the learning process as much as possible. We accomplish this by providing short video lessons as well as self-assessment quizzes for you to identify any weak areas you need to review more. You can either re-watch videos or review the lesson transcript included with each. The videos are easy to navigate and you can skip past any subjects you don't want to review, rather than having to watch entire videos. So let's get started!
1. What Is an Organ System? - Definition & Pictures
In this lesson, you will learn what an organ system is, and you will review each organ system in the human body. This will aid in your study of human anatomy and physiology. At the end of the lesson, a quiz will test your knowledge.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. Endocrine System Function & Hormone Regulation
Our hormones play a big part in how we feel and behave throughout the day. Hormones also affect important bodily functions. What other functions do our hormones regulate? Find out in this lesson on the endocrine system!
8. 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.
9. The Lymphatic System: Definition and Fundamental Components
This lesson will cover something known as the lymphatic system. You'll learn about bone marrow, lymph, the thymus, lymph nodes, spleen, and much more as we explore this critical component of your immune system.
10. 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.
11. Major Muscle Groups of the Human Body
This lesson introduces the major skeletal muscle groups of the human body. It includes illustrations, examples, and descriptions for each major group. A brief quiz and summation of key points are also included.
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