Grade 9 exam

6. muscular tube that connects the pharynx with the stomach
8. muscles that increase the angle between the bones of a joint
10. the chemical and physical processes by which the body breaks down food and generates energy
11. body's largest veins
13. inability of the eyes to focus on distant objects
15. eating disorder characterized by self-induced starvation and being severely underweight
16. rigid ring of thick bone that supports most of the body's weight
18. connective tissue that attaches muscle to bone
20. colored part of the eye
21. a dangerous surface current formed when large quantities of water recede rapidly into the sea
22. freezing of the body tissue
23. an unborn baby once he is distinctly recognizable as a miniature baby

1. pressure during contraction of the ventricles
2. below-normal body temperature
3. type of circulation that involves the movement of blood through all parts of the body except the lungs
4. large, spongy organs located inside the thoracic cavity
5. white of the eye
7. the most important and complex part of the nervous system
9. responsible for functions that are consciously controlled
12. largest artery in the body
14. wasting away of muscle through lack of use
17. a serious reduction in the body's water content
19. nerve cells of the body