Across
- 5. - A type of cell division that results in two identical daughter cells.
- 6. - A condition in which there is too much acid in the body fluids.
- 10. - Pertaining to the bones or skeleton; refers to skeletal muscle.
- 13. - The maintenance of stable internal conditions in the body.
- 15. - A type of white blood cell that is part of the immune system.
- 18. - The outer layer of an organ, such as the brain or kidney.
- 21. - A chemical messenger that transmits signals across a synapse.
- 22. - The narrowing of blood vessels, which increases blood pressure.
- 25. - A gland that regulates metabolism through hormone secretion.
- 27. - A fibrous connective tissue that connects bones to other bones.
- 28. - Refers to fat tissue in the body.
- 29. - The point where two bones meet; a joint.
- 30. - The process of merging sperm and egg to form a zygote.
Down
- 1. - The process of breathing; the exchange of oxygen and carbon dioxide.
- 2. Tiny air sacs in the lungs where gas exchange occurs.
- 3. - The protein in red blood cells that carries oxygen.
- 4. - An external factor that elicits a response from an organism.
- 7. - The process of maintaining the proper balance of salts and fluids in the body.
- 8. - A component of blood that helps in clotting.
- 9. - The functional unit of the kidney responsible for urine formation.
- 11. - A circular muscle that constricts a passage or closes a natural opening.
- 12. A simple sugar that is an important energy source for cells.
- 14. - The muscular layer of the heart.
- 16. - The junction between two neurons or between a neuron and a muscle cell.
- 17. - Referring to glands that secrete hormones directly into the bloodstream.
- 19. - A chamber of the heart that pumps blood out to the body or lungs.
- 20. The part of the brain responsible for coordination and balance.
- 23. - The basic unit of the nervous system.
- 24. - A cell that produces cartilage.
- 26. - An organism or virus that causes disease.