Across
- 6. Allows red blood cells to carry and release oxygen
- 9. Blood cells that help defend the body against infections
- 10. The body system that include organs and tissues that help fight infections
- 12. Hormone that prepares the body to cope with stress by increasing the heart rate and breathing rate
- 14. Substance in saliva that helps digest food
- 15. A hallow, muscular organ located in the center of the chest
- 17. Gland located on the top of each kidney
- 19. Organ attached to the large intestine, but it does not play a role in digesting food
- 20. A fish-shaped organ behind the stomach
- 21. Blood cells that help defend the body against infections
- 22. A tube that carries urine from a kidney to the bladder
- 24. Hormone which prepares the body to deal with stress; known as the stress hormone
- 25. Small masses of tissue that guard the throat from infection
- 27. system The body system that draws air into the lungs and delivers oxygen to the blood
- 29. The smallest blood vessels in the body
- 33. The watery substance of blood that transports all the substances carried by blood
- 35. A clear-to-white fluid made of white blood cells that attack bacteria in the blood and body tissues
- 37. Blood vessels that carry blood from the heart to the rest of the body
- 38. The most numerous blood cell that contains hemoglobin
- 41. An endocrine organ that makes insulin and glucagon
- 45. Four tiny glands located on the back of the thyroid gland
- 49. A lymphatic organ located in the front of the large blood vessels in the upper chest
- 50. The exchange of oxygen and carbon dioxide in the lower respiratory system
- 51. Similar to blood vessels, but carry extra fluid that builds up in tissues of the body
- 52. Body system that brings food into the body and breaks it down to provide nutrients and energy the body needs
Down
- 1. A gland located beneath the hypothalamus in the brain and controls processes like growth, birth, and puberty
- 2. An organ filled with white blood cells and filters blood
- 3. Two bean-shaped organs that begin the process of urine production by filtering blood
- 4. A muscular bag that is slightly to the left of the center of the body and below the ribcage
- 5. Proteins that stick to bacteria and viruses and help destroy invades, made by white blood cells
- 7. The moist, sticky substance that is made by the inner walls of the respiratory passages
- 8. hormone Hormone that controls blood levels of calcium and phosphate, made by the parathyroid gland
- 11. A hormone made by the thyroid gland which increase the rate at which the body uses energy
- 13. Body system that removes liquid waste from the body
- 16. A small pear-shaped bag under the liver
- 18. The process of breaking down food and begins in the mouth
- 23. Substance that breaks down large fat droplets into very small fat particles that can be digested and transported through the body
- 26. The lower two chambers of the heart that receive blood from the atria
- 28. The top two chambers of the heart
- 30. Glands found in and around the mouth that produce saliva
- 31. The body system that is responsible for removing foreign substances from the body
- 32. A muscular bag that sits at the levels of the pubic area above the genitals
- 34. An artery, the largest blood vessel in the body
- 36. Liquid produced by salivary glands; helps moisten food
- 39. A muscular tube that connects the throat to the stomach
- 40. Body system that provides the body with a continuous supply of blood containing oxygen and nutrients
- 42. The process of inhaling and exhaling air
- 43. The body system that controls the body using hormones
- 44. A gland located on the front of the neck just below the larynx
- 46. Organ that produces testosterone
- 47. Organ that produces the hormones estrogen and progesterone
- 48. Blood vessels that carry blood from the rest of the body to the heart