Getting hit in the face is not the only cause of nosebleeds. Lots of kids have nosebleeds, they are quite common. Even thought they can be scary and gross, nosebleeds are usually not really a big deal. Use this site to learn more about anterior and posterior nosebleeds, what causes them and what to do to stop them.

Just about every kid needs to have stitches at one time or another. Whether you're playing a bit too hard and conk your head - ouch! - on your dresser, or your little brother trips you and you cut your knee, sometimes your skin needs some extra help to heal. That's where stitches come in - they are used to join your skin back together. Read this article to find out all about kids and stitches.

This page for the huge KidsHealth site gives you a jumping-off point and an overview of the site's content, purpose, and usage. With sections for parents, kids, and teens, KidsHealth has been online since 1995 and today it is accessed 250,000 times on an average weekday. The Kids area features thousands of topics in sections like Staying Healthy, Growing Up, Everyday Illnesses & Injuries, and Dealing with Feelings. There are games, interactive features, and a glossary of medical terms. Teen topics include School & Jobs, Staying Safe, and Food & Fitness. This is a great place for doctor-approved health information. Available in English and Spanish.

Students work as biomedical engineers to find liquid solutions that can clear away polyvinyl acetate polymer "blood clots" in model arteries (made of clear, flexible tubing). Teams create samples of the "blood clot" polymer with different concentrations to discover the concentration of the model clot and then test a variety of liquids to determine which most effectively breaks down the model blood clot. Students learn the importance of the testing phase in the engineering design process, because they are only given one chance to present the team's solution and apply it to the model blood clot.

Understand the physiological make-up of human blood.

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Resource provides great information on Thrombocythemia, or high platelet count. The article is set up as a brief answer to a question about the condition, thrombocythemia. The information is short, factual and interesting.

Students learn about the form and function of the human heart through the dissection of sheep hearts. They learn about the different parts of the heart and are able to identify the anatomical structures and compare them to the all of the structural components of the human heart they learned about in the associated lesson, Heart to Heart.

Students learn about the separation techniques of sedimentation and centrifugation and investigate whether blood is a homogeneous or a heterogeneous mixture. Working in groups as if they are biomedical researchers, they employ the scientific method and make observations about the known characteristics of urine, milk and blood. They probe further by analyzing research on the properties and fractionation modes of blood. As students learn about certain strange characteristics with the fractionation behavior of blood, they formulate hypotheses on the unique nature of blood. Using provided materials —olive oil, tomato juice and petroleum jelly—they design an experiment and construct a blood model. They test their hypotheses by conducting experiments on the blood model, and then propose theories for the nature of blood as a mixture—arriving at the theory of mixture dualism in blood—that blood is a complex mixture system. An activity-guiding handout and PowerPoint® presentation are provided for this student-directed, project-based activity.

Students learn how to take blood pressure by observing a teacher demonstration and then practicing on fellow classmates in small groups. Once the hands-on component of this activity is completed, the class brainstorms and discusses how blood pressure might affect a person's health. This activity acts as hook for the second lesson in this unit, in which blood pressure is presented in detail, as well as how variances in blood pressure can affect a person's cardiovascular system.

Video episode [2:35] from Season 9 of Seinfeld which illustrates with outrageous humor the role of financial institutions or some other mediary in saving.

A detailed overview of the circulatory system, including plasma and proteins. Designed as lesson plans, this site can be helpful for students as well.