DIRECTIONS Get out your x-ray glasses! You can learn all about your interesting insides while you answer the questions using the links below. Write your answers on a separate piece of paper, or on the reproducible provided by your teacher.     1  The human skeleton has 206 bones. Which is the longest? ________________________ 6   Why do you think they are called hinge joints? _____________ ________________________   2 The smallest bones are those in our ears. What are their names? (There are three, and each has a plain and a fancy name.) ____________/_____________, ____________/_____________, ____________/_____________. 7   Another word for the skull is the cranium. What is the most important job of the skull? ________________________   3  What makes up the inside portion of our bones? ________________________     8    What is the hardest bone in our body? ________________________ 4 What is its purpose?_________ _________________________   9  What were George Washington’s teeth made from? (Hint: not wood!) ________________________   5 Joints are what hold our bones together. There are two types: movable and immovable. A hinge joint is a type of movable joint found in ___________________, _________________, and _________________.   10  Watch a terrific Web movie about the human skeletal system at the site below. While you wait for the page to load, you can take a quiz about the skeleton! You will need Shockwave to view this page. Click here for a free copy.     An Instructor magazine reproducible. © 2001 Scholastic Inc. Teachers may make copies of this page for students.