This lesson goes over the parts of the human respiratory system and the gas exchange process that occurs in the lungs. It also covers changes in the respiratory system that occur during spaceflight, such as decreased lung capacity.

As if sniffles and clogged sinuses are bad enough, everything seems to taste bland and flavorless when we are sick. Gather up a few volunteers, hit the kitchen, and try this experiment to find out if there is really truth to the idea...

Click on a highlighted portion of the skeleton to open up a brief video presentation and written summary explaining how that part of the human has come from our ancient ancestors.

Check your knowledge of the parts of the human body by completing this crossword puzzle.

Slideshow, with an accompanying quiz, demonstrates how the respiratory system works.

Self-playing slideshow, with an accompanying quiz, explains how the muscular system works.

This teacher's guide introduces children to the human body and the five senses and covers the major body parts and what they do. Children also will use their five senses to learn about the world.

Describe the structures found in the peripheral nervous system and the functions of those parts in the human body.

Four lessons related to robots and people present students with life sciences concepts related to the human body (including brain, nervous systems and muscles), introduced through engineering devices and subjects (including computers,...

This page and the three pages which follow discuss how X-ray technology can be used to produce an image of the human body. Discussion is understandable and highly intriguing. Several interactive animations allow the visitor to explore...

After studying this article, students will be able to identify the functions and structure of bones, types of bones, bone development, parts of bones, types of joints, and bone disorders.

[Free Registration/Login may be required to access all resource tools.] Sperm, the male reproductive cells, are tiny. In fact, they are the smallest cells in the human body. Some people think that they look like tadpoles. Learn more...

Students are introduced to the circulatory system, the heart, and blood flow in the human body. Through guided pre-reading, during-reading and post-reading activities, students learn about the circulatory system's parts, functions and...

Our brains are split into two parts, right inside our head. One half is the left brain and the other half is the right brain. Each side of your brain controls different parts of your body and most people are more dominant controlling one...

Through this online exercise, students learn the parts of the body. Read the questions, view the picture and type in your response. To check your answer just click on the drop down arrow next to "Respuesta" (answer).

Online exhibition examines an interesting sidelight in the history of medicine: the use of papier-mache anatomical models. Learn about the history of medical dissection, why the models were made, and their construction and conservation....

Did you know parts of our body was inherited from distant animal ancestors? In this interactive students will investigate different anatomical features of the human body to reveal our evolutionary history. Learn how humans share...

Explore the production of six different types of vaccines. This activity is interactive, allowing you to take part in the production of the different vaccines.

Take a look inside the human body's digestive system. This site features diagrams of the digestive tract and each part is accompanied by labels and descriptions. Just select an organ by moving the mouse over its image.

This study guide on the immune system covers key terminology and the different lines of defense the human body has to protect itself against pathogens. It is available for download with free registration.

Learn here all about the thoracic cage, the part of the human anatomy that forms the thorax portion of the body.

After reading about the functions and jobs of a healthy colon and rectum, read about what happens when these parts of the human body become afflicted with cancer.

This site provides learners with information regarding anatomical terminology. It covers anatomical position, directional and regional terms used, body planes, body cavities and their organs, and the serous membranes.

At this site, students can interact with the muscular system of the human body. Click on a region of the body or the name of a muscle, and zoom in to examine it. Outlines and magnifying glasses appear and when you click on them, you see...