Across
- 3. a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning
- 6. creates a backup pathway for blood flow if a blood vessel is blocked
- 7. prevents backward flow of blood
- 8. mechanism by which a reduction of pressure in the thoracic cavity during inhalation assists return to heart
- 11. the top part of the main artery carrying blood away from the heat
- 12. a blood vessel that delivers blood to the liver from the stomach, intestines, spleen, and pancreas
- 14. a large vein that carries blood from the torso and lower body to the right side of the heart
- 16. represents the force that the heart generates each time it contracts
- 17. prominent veins
- 18. a short microvessel in the microcirculation that links arterioles and capillaries
- 19. maintaining blood flow through the vascular system
- 20. close to the anterior surface of the thoracic cavity
Down
- 1. the thickening and hardening of the walls of the arteries, occurring typically in old age
- 2. create blood pressure
- 4. ensures that blood flows back to the heart
- 5. mechanoreceptors located in blood vessels near the heart that provide the brain with information pertaining to blood volume and pressure
- 9. the main artery that carries blood away from your heart to the rest of your body
- 10. stroke
- 13. carries blood from the head, neck, arms, and chest
- 15. an interwoven network of capillaries that supplies an organ