Across
- 2. The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.
- 4. transport oxygen in your body.
- 6. blood vessels that carry blood low in oxygen from the body back to the heart.
- 8. large shaped protein.
- 9. Transmission electron microscope image of a cross-section of a capillary occupied by a red blood cell.
- 11. like the skin
- 13. a organism made of many cells
- 16. is a large vein that carries deoxygenated blood from the lower middle body.
- 19. is the superior of the two venae cavae.
Down
- 1. are the cells of the immune system
- 3. short eyeshlike that is numerous in tissues or cells.
- 5. organsim only of one cell.
- 7. Fluid comprising a mixture of substances, including pepsin and hydrochloric acid, secreted by glands of the stomach.
- 10. Formation of blood clots; prevention of bleeding.
- 12. theory of the cells.
- 14. is the spontaneous net movement of solvent molecules.
- 15. is a structural layer surrounding some types of cells.
- 17. is the main and largest artery in the human body.
- 18. Blood plasma is a 'yellowish liquid' component of blood that holds the blood cells of whole blood in suspension.