Across
- 4. pertaining to the groin
- 6. small gland in the lymphatic system that produces T-cells
- 7. study of protection
- 8. pertaining to the armpit
- 12. fist-sized organ in your upper left abdomen
- 13. pertaining to the neck
- 16. oval-shaped pads of tissue on back of throat
- 17. protective protein fighting against antigens
- 18. tube or canal that carries a substance
Down
- 1. smallest blood and lymph vessels
- 2. study of diseases
- 3. lymph cell
- 5. lymph vessels around the small intestines
- 9. the body's ability to fight against foreign agents
- 10. foreign protein that causes an immune response
- 11. physician who treats allergies
- 14. bean-shaped structure part of body's immune system
- 15. center of chest