Respiratory systems are different in worms, fish, and human lungs, and each are explained by Paul Andersen with his fabulous SMART Board. How are these respiratory systems similar? Keeping breathing surfaces moist is essential in all...

Compare a variety of animals' circulatory systems to the human circulatory system. Paul Andersen uses his SMART Board to show the differences between two, three, and four chamber hearts, focusing on the human heart. 

Did you know that your bones continue to be dissolved and replaced throughout your life? Learn all about osteoblasts, osteocytes, and osteoclasts in this video. The roles of different types of bone are highlighted and explained.

Watch as the Khan Academy explains why red blood cells are efficient carriers of hemoglobin and explains the difference between pulmonary arteries and veins. This thorough video, complete with excellent explanations and diagrams, will...

White blood cells are our body's tiniest warriors! How do they work? Biology scholars discover the types and functions of white blood cells through a video from an intriguing biology playlist. The resource profiles both types of white...

What does digestion have to do with aerobic respiration? Watch a video that explains the processes and systems in our bodies that allow oxygen to travel throughout.

Did you know that blood vessels can constrict or expand in response to extreme weather? The 27th video in a series of 47 about the human body viewers learn interesting facts about blood vessels. The narrator goes over the three layers of...

If humans can live without one kidney, how important can they really be? Investigate the vital role these organs play in filtering our blood, removing waste, and managing our bodies' water supply with this short animated video.

With the thousands of tasks our brain consciously performs on a daily basis, it's amazing that breathing isn't one of them. Learn how human bodies are able to automatically control the exchange of gas that keeps us alive...

Intersperse your viewing of this video with questions that are shown on the screen. Keep your learners engaged by having them take notes and answer the questions. Parts of the respiratory system are shown with pictures and animation...

Despite slightly older animation, this fascinating video shows the path each red blood cell takes as it carries oxygen throughout the body. From the first pump of the heart pushing red blood cells to the lungs to pick up oxygen to the...

The functions of the various blood vessels are explicated quickly in this one-minute animated video. Quiz your young biologists on anatomy and show them this video after they have attempted to answer what the functions of the three types...

The endocrine system is unique in that hormones are secreted directly into the bloodstream. Listen as the path of hormones is detailed and the parts of the entire system are discussed. Show your anatomy and biology scholars this video...

Diagrams and video footage of people help show the structures and functions of the respiratory system. Exercise is highlighted, making this an accessible video for a health class.

Begin to show the workings of the lymphatic system with this video. Right when the narrator gets to the lymph nodes though, the video unfortunately cuts off mid-sentence. Use the video to show the connection between the lymphatic system...

We begin our look at how blood gets around your body. In this episode, we look at the basic three-layer structure of your blood vessels. We review how those structures differ slightly in different types of vessels. We will also follow...

Watch this short movie to find out the basics of the respiratory system. Fun to watch and lots of good information. From KidsHealth.

Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures...

Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures...

Have you ever crashed into another person on the playground and got a nasty bump? Did it ever turn purple, green or yellow? Watch here to find out why all this happens [1:31]