Across
- 2. Ligaments are connective tissue that attach your bones to bones, and _________ are connective tissue attaching muscles to bones.
- 7. ________ neurons (nerve cells) send messages from your brain to your hand muscles as you complete this worksheet.
- 8. These are the smallest blood vessels. They are so small that oxygen, carbon dioxide, and nutrients can travel in and out of them from your cells.
- 9. This type of muscle is voluntary (meaning they work when you want them to move. You can control them and decide when you want to move them. Examples include the biceps, abdominals, and deltoids)
- 10. To prevent bones from knocking into each other, we have a soft, rubbery tissue between our joints called ________________.
- 12. In order for your muscles to get energy they need nutrients. Nutrients must first be ABSORBED from the ___________ intestines into the bloodstream. (Hint: 20 feet long)
- 13. The ___________ lobe (in the cerebrum) is in charge of critical thinking and decision making as you complete this worksheet.
- 15. If someone has bronchitis they have inflammation of the tiny tubes in the lungs called the _______________.
- 18. Muscles work in pairs. While one contracts, the other muscle relaxes. For example, when the hamstrings (back thigh muscle) contracts, the ____________ (front thigh muscle) relaxes .
- 19. Food must pass from the mouth through this muscular tube in order to get to the stomach to be broken down.
- 20. To prevent respiratory infections, these tiny hair-like structures filter out dust, germs and other particles.
- 21. This bone is crucial in protecting your spinal cord from getting injured.
- 22. Which blood cells are in charge of supplying your brain with the OXYGEN it needs to function?
- 24. In order to play sports, this part of the brain helps with balance and coordination.
- 25. If you were to fall down during a game and cut your leg, which blood cells would help to clot your blood to create a scab?
Down
- 1. If food gets into the windpipe or ____________, then you could choke.
- 3. This tiny flap, at the back of the throat, blocks food from going into the windpipe.
- 4. Information is constantly traveling to and from your brain through your ________ cord (a bundle of nerves in the center of the back)
- 5. As you swallow your snack, which TYPE of muscle is working around your stomach to break down food?
- 6. As you run and play, oxygen-rich blood is flowing AWAY from the heart to your muscles through which blood vessel?
- 9. The ball-and-___________ joint in the shoulder and hip allow for movements like throwing and kicking.
- 10. This muscle works “twenty-four/seven”. It is the hardest working muscle because it beats 60-100 times every minute.
- 11. Billions of new blood cells for the circulatory system are made each day in the bone ______________.
- 14. Take a deep breath in. Which structure is the last stop in the respiratory system? (Hint: tiny air sacs in your lungs)
- 16. When you’re exercising, your heart rate goes up because the ___________ system is delivering more oxygen to your muscles.
- 17. Which part of the brain is controlling AUTOMATIC functions (like your heart rate and breathing rate increasing) while you run?
- 20. This bone helps prevent the brain from getting injuries like a concussion.
- 23. ______ digestion in the mouth is when the enzymes in your saliva begin to break down food.