| A | B |
|---|
| heart | a muscle that pumps blood |
| pulse | a throbbing of the arteries |
| side of neck & wrist | where you can feel your pulse |
| stethoscope | used to hear your heart beat |
| 70 | the number of times an adult's heart beats |
| 100 | the number of times a child's heart beats |
| your fist | this shows the size of your heart |
| 1 pound | your heart weighs less than this |
| blood vessels | tubes that carry your blood |
| scab | helps to stop the bleeding of a cut |
| new skin | this is formed under a scab |
| exercise | this makes your heart stronger |
