Extras

    Video thumbnail: Science Trek The Heart: Lungs Q&A

    Science Trek

    The Heart: Lungs Q&A

    Dr. Agoudemous answers students' questions about the lungs.

    The Heart: Lungs Q&A

    Video thumbnail: Science Trek The Heart: Heart Disease Q&A

    Science Trek

    The Heart: Heart Disease Q&A

    Dr. Agoudemous answers students' questions about heart disease.

    The Heart: Heart Disease Q&A