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Showing 1-31 of 31 Resources
  • Tugging The Cellular Heartstrings

    Tugging The Cellular Heartstrings

    Image of the Week

    The microtubules inside cardiomyocytes buckle when the heart contracts.

  • Sound and Vision

    Sound and Vision

    Image of the Week

    A mass of cells surrounded by blood vessels visualized in a living mouse using photoacoustic imaging.

  • Thermoregulation in Dinosaurs

    Thermoregulation in Dinosaurs

    Data Point

    Grady and colleagues compared dinosaur fossil evidence with evidence from living animal species to shed more light on the type of thermoregulation that dinosaurs used—ectothermy, endothermy, or mesothermy.

  • Counting Glomeruli

    Counting Glomeruli

    Image of the Week

    The human kidney contains about 1 million tiny filters called glomeruli with associated nephron tubules.

  • The Heart of the Matter

    The Heart of the Matter

    Image of the Week

    Early theories of the heart’s role were largely based on its central position in the body.

  • Mapping a Kidney’s Tubes

    Mapping a Kidney’s Tubes

    Image of the Week

    An intricate system of tubes in the kidney filters out waste products from the blood.

  • Icefish Film with Quiz

    Icefish Film with Quiz

    Interactive Video

    (13 min 14 sec) Embedded quiz modules test students’ understanding as they watch the short film on the icefish—an example of how genes are reused and recycled.

  • A Billion Heartbeats

    A Billion Heartbeats

    Image of the Week

    The muscles of the mouse’s heart contract about 600 times per minute, or a billion times in its three-year lifespan.

  • Vertebrate Circulatorium

    Vertebrate Circulatorium

    Click & Learn

    Compare and contrast the anatomy of the heart and the circulatory systems of major vertebrate groups and gain insights into their evolution.

  • Feeding a Hungry Heart

    Feeding a Hungry Heart

    Image of the Week

    An intricate three-dimensional network of blood vessels nourishes the heart.

  • The Making of the Fittest: The Birth and Death of Genes

    The Making of the Fittest: The Birth and Death of Genes

    Short Film

    (13 min 10 sec) Scientists have pieced together the evolutionary history of the Antarctic icefish. The icefish makes an excellent case study for genetic evolution as both the gain and loss of genes have led to key adaptations.

  • How Novel Icefish Genes Can Improve Human Health

    How Novel Icefish Genes Can Improve Human Health

    Activity

    A lesson that requires students to read detailed scientific passages and explain how an understanding of specific icefish adaptations might lead to a treatment or cure for human disorders, such as osteoporosis and anemia. 

  • Ice Crystal Formation in Icefish and Non-Icefish Blood

    Ice Crystal Formation in Icefish and Non-Icefish Blood

    Activity

    A dramatic demonstration that simulates how tiny ice crystals would form and grow in the blood of most fish if they ventured into the icy waters of the Antarctic.

  • Demonstration: Viscosity of Icefish and Non-Icefish Blood

    Demonstration: Viscosity of Icefish and Non-Icefish Blood

    Activity

    A simple demonstration that uses readily-available materials to simulate how blood pumps through the circulatory system of icefish and other fish.

  • Icefish Adaptations

    Icefish Adaptations

    Activity

    A simple activity that investigates the importance of antifreeze proteins to icefish survival.

  • Film Guides: The Birth and Death of Genes

    Film Guides: The Birth and Death of Genes

    Film Guide

    The following classroom-ready resources complement The Making of the Fittest: The Birth and Death of Genes, which describes how scientists have pieced together the evolutionary history of the Antarctic icefish. The icefish makes an excellent case study for genetic evolution as both the gain and loss of genes have led to key adaptations.

  • Heart Attack and Blocked Arteries

    Heart Attack and Blocked Arteries

    Clip

    (3 min 59 sec) Dr. Rosenthal uses a model of a heart and an artery to describe how blockages lead to heart attack and tissue damage.

  • Zebrafish Heart Regeneration

    Zebrafish Heart Regeneration

    Animation

    (2 min 30 sec) The zebrafish heart is similar to the human heart in many respects. But unlike the human heart, the fish heart closes wounds rapidly and then regenerates to nearly full function. Fibroblast growth factor (FGF) is an important molecule in the regeneration process.

  • How a Heart Attack Occurs

    How a Heart Attack Occurs

    Animation

    (37 sec) A 3-D animation that shows how plaques form in a blood vessel, leading to blockage and a heart attack.

  • Obesity-Related Health Problems

    Obesity-Related Health Problems

    Animation

    (1 min 44 sec) A timeline illustrating the gradual effects of obesity on the body, including diabetes, atherosclerosis, and heart attack.

  • Sickle Cell Anemia

    Sickle Cell Anemia

    Animation

    (1 min) Sickle cell anemia is a genetic disease that affects hemoglobin.

  • Teacher Guide: Holiday Lectures on Science - 1998

    Teacher Guide: Holiday Lectures on Science - 1998

    Teacher Guide

    A guide written for teachers to accompany the 1998 Holiday Lectures on Science.

  • Cardiology Virtual Lab

    Cardiology Virtual Lab

    Virtual Lab

    NEW! HTML 5 support added! This virtual lab will familiarize you with heritable diseases of the heart. Learn about the diagnostic tools used to examine and diagnose patients.

  • The Kidney's Tale: Of Salt and Hypertension

    The Kidney's Tale: Of Salt and Hypertension

    Lecture

    (1 hr 3 sec) Molecular genetic approaches have identified genes that, when mutated, cause either increased or decreased blood pressure.

  • Heartbreak: Of Mutations and Maladies

    Heartbreak: Of Mutations and Maladies

    Lecture

    (58 min 28 sec) Although heart disease typically occurs after middle age, seemingly fit and healthy young individuals can die suddenly from unrecognized heart disease.

  • Telltale Genes: Charting Human Disease

    Telltale Genes: Charting Human Disease

    Lecture

    (59 min 40 sec) The discovery of DNA as the basis of heredity led to an explosive growth of knowledge about the human genome and allowed the identification of genes that predispose people to different diseases.

  • Brave Heart: Circle of Life

    Brave Heart: Circle of Life

    Lecture

    (59 min 29 sec) The heart acts as a dual pump, sending oxygen-depleted blood to the lungs to be reinvigorated and pumping oxygen-rich blood to vital organs throughout the body.

  • Of Hearts and Hypertension: Blazing Genetic Trails

    Of Hearts and Hypertension: Blazing Genetic Trails

    Lecture

    In four lectures, Richard P. Lifton, MD, PhD, and Christine E. Seidman, MD, discuss their groundbreaking work in using genetic and molecular approaches to understand cardiovascular diseases.

  • Kidney Function

    Kidney Function

    Clip

    (4 min 30 sec) Dr. Richard Lifton, along with student volunteers, uses an aquarium and salt to illustrate the amount of work the kidney performs each day to maintain proper levels of ions in the body.

  • Echocardiogram

    Echocardiogram

    Clip

    (4 min 45 sec) Dr. Christine Seidman describes a live demonstration of an echocardiogram, with a description of the parts of the heart that are visualized.

  • Heart Function

    Heart Function

    Animation

    (33 sec) The job of the human heart—in fact of all vertebrate hearts—is to pump oxygenated blood throughout the cells of the body and to return deoxygenated blood to lungs or gills for replenishment.

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