Across
- 3. system that sends electrical messages
- 5. endocrine system way of communication
- 6. system that secretes hormones into the blood
- 7. organ containing hormones insulin and glucagon
- 8. endocrine system type of message
Down
- 1. main energy source for the body's cells
- 2. hormone release to release energy from food
- 4. Type 1 and type 2
- 5. maintains a balanced environment