health puzzle

1. a clear liquid that surrounds body cells and circulates in lymph vessels
4. a blood vessel that carries blood away from the heart
7. system-carries messages to and from the brain and spinal cord and all other parts of the body
9. an organ on the left side of the abdomen that filters foreign matter from the matter from the blood lymph
12. blood vessel that returns blood to the heart- a four chambered muscle that pumps blood throughout the body
14. follicle-a pit on the surface of the skin that contains nutrients a hair needs to grow
15. pale yellow liquid composed of water, salts, and other-waste products
16. system-a group of organs that work together to preform a main body function
17. the smallest living part of the body
18. a group of cells or an organ that secretes hormones
19. chemical messenger that is released directly into the bloodstream
21. the structural material of the skeletal system
23. a protein that regulates chemical reactions

1. gland that releases bile to help break down fats, maintain blood sugar level, and filter poisonous wastes
2. rate at which food is covered into energy in body cells
3. the surge of blood that results from the contractions of the heart
5. a group of similar cells that work together
6. mass of nerve tissue that acts as the control center of the body.
8. a body part consisting of several kinds of tissue that do a particular job
10. a four-chambered muscle that pumps blood throughout the body
11. an organ that filters the blood and excretes waste products and excess water in the form of urine
13. a tiny blood vessel that contacts arteries and veins
16. cell- a white blood that produces antibodies- a blood protein produced in response to and counteracting a specific antigen.
20. the point where two ones meet
22. body- the main part of the neuron