Oxygen’s Surprisingly Complex Journey Through Your Body

With so many harmful agents around us, how do humans stay healthy? Find out by watching an informative video from a larger biology playlist that details our defenses against a variety of pathogens. The narrator describes the body...

What do you call a brain without one billion neurons? A no-brainer! The narrator of a video about the brain and the differences between the central and peripheral nervous systems walks viewers through both systems, explaining how they...

More than 27 million Americans have some type of thyroid disease. In the 24th video in a series of 47, scholars see how the hypothalamus-pituitary-thyroid axis works in the human body. The narrator then explores what happens to the body...

Watch as the Khan Academy explains why red bloods are efficient carriers of hemoglobin and explains the difference between pulmonary arteries and veins. This thorough video with great explanations and diagrams will surely help your...

The oxygen needed by our bodies to burn during respiration of glucose is obtained by ventilation. The anatomical structures involved in gaseous exchange are drawn and labeled. The explanations are excellent for a review, or for a student...

Did you know that you are already a time traveler? The relationships among time, space, and gravity are explained in this featurette. Also, the possibilities of building a time machine are explored. Where you probably aren't spending a...

"But we're tired, and exhausted, from trying to be something we're not." Insecurity from body image can play a significant role in adolescence and into adulthood. Watch as two young poets tackle this issue head on through the creative...

The average person's heart beats about three billion times during their lifetime. In this circulatory system video, learners briefly see the difference between an open and closed circulatory system. The rest of the video focuses on the...

Get your class thinking with animations of neurons in action and explanations of how stimuli is transported and processed. This film makes an ideal introduction or review of the nervous system. The parts of the brain and what they...

Paul Andersen compares your endocrine system to Facebook and your nervous system to Gmail in order to show the differences in response time. He then delves into specifics of your endocrine system, talking about hormones that are water...