Across
- 2. unborn offspring of a mammal
- 5. located above each kidney; produce hormones which help regulate heart rate and blood pressure
- 7. blood vessels which carry oxygenated blood away from the heart to the rest of the body
- 9. muscular organ which pumps blood through the circulatory system
- 14. muscular pouch near the throat of birds
- 15. thick walled part of a bird’s stomach which grinds food
- 16. thin skin which covers the inside surface of the body
- 19. protective way the body signals the immune system to heal and repair damaged tissue
- 20. deficiency of red blood cells and hemoglobin in the blood; causes body weakness
- 21. large gland behind the stomach which releases digestive enzymes and regulates sugar levels by releasing insulin
- 23. responsible for transporting oxygen from the lungs to the rest of the body
- 24. located behind the thyroid gland; regulate calcium
- 25. specialized cells which carry messages from one part of the body to another
Down
- 1. located at the base of the brain; controls growth and development
- 3. female reproductive organ in which eggs are produced
- 4. transports oxygen throughout the body
- 6. male organ which produces sperm
- 8. located in the neck; secretes hormones regulating growth, development and the rate of metabolism
- 10. blood vessels which carry blood towards the heart
- 11. single celled organisms which cause diseases in animals
- 12. relating to the heart
- 13. given to stimulate the immune system and prevent disease
- 17. organism made up of DNA and RNA which causes diseases in animals
- 18. organism which lives off of or in another organism
- 22. part of the body which connects the throat to the stomach