Across
- 5. Mechanism where a change is reversed to maintain balance
- 6. Brain region that links nervous and endocrine systems
- 8. Master gland controlling other endocrine glands
- 10. Organelle responsible for energy production
- 12. Process that maintains internal stability in the body
- 13. Rapid electrical signal along a neuron
- 15. Basic functional unit of the nervous system
- 17. Movement of water across semipermeable membrane
- 18. Chemical messenger released into bloodstream
- 19. Junction between two neurons
Down
- 1. Tiny air sacs for gas exchange in lungs
- 2. Primary sugar used for energy
- 3. Movement of molecules from high to low concentration
- 4. Biological catalyst that speeds up reactions
- 7. Energy currency of the cell
- 9. Fight-or-flight hormone
- 11. Capillary network for filtration in kidney
- 12. Oxygen-carrying protein in red blood cells
- 14. Functional unit of kidney
- 16. Hormone that lowers blood glucose