Across
- 3. tonsils protects against infects and flush away unwanted particles
- 6. protects the body against respiratory and gastrointestinal infections
- 12. marrow stores fat and does not produce blood cells
- 13. tissue fluid that has entered a lymphatic capillary
- 15. produces antibodies
- 18. fluid direct contact with cells throughout the body
- 20. fills the remaining spaces of lobes
- 21. distributed throughout the spleen in tiny islands
Down
- 1. engulf and destroys foreign substance, damage cells and cellular debris
- 2. help defend the body against infections
- 4. formation prevents the accumulation of excess tissue fluid or edema
- 5. marrow a spongy substance found in the center of the bones
- 7. direct contact with cells throughout the body
- 8. help defend the body against infections
- 9. system maintain body fluid levels
- 10. red blood cells, white blood cells, and blood platelets form
- 11. lumps of tissue at the back of the throat
- 14. houses macrophages that removes foreign particles
- 16. nodes filtering of lymph to identify and fight infection
- 17. the two types of marrow change with
- 19. prevent infections