Body Systems Vocabulary

4. blood cell blood cells that engulf and digest bacteria and fungi
6. any of the small tubules that are the excretory units of the vertebrate kidney
8. a flap of cartilage that covers the windpipe while swallowing
11. tough elastic tissue, mostly converted to bone in adults
12. muscle a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)
16. muscle the muscle tissue of the heart
18. the chief solid component of mammalian urine
20. a digestive juice secreted by the liver
22. muscle a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)
23. a red protein in blood that transports oxygen
24. a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles; contains nerves and blood vessels that nourish the enclosed bone

1. a band of fibrous tissue connecting bones or cartilages
2. a clear liquid secreted by glands in the mouth
3. a muscular partition in the chest used in respiration
5. muscle striated muscle that can be controlled voluntarily
7. a blood vessel that carries blood toward the heart
9. the watery fluid in which blood cells are suspended
10. a chamber of the heart that receives blood from an atrium
13. the structure containing the vocal cords
14. a band of tissue connecting a muscle to its bony attachment
15. blood cell a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus
17. a chamber connected to other chambers or passageways
19. a blood vessel that carries blood from the heart to the body
21. the passage between the pharynx and the stomach