Across
- 2. Branches into trachea, which carries air to and from the lungs, and esophagus, tube that carries food to stomach
- 4. membrane or sac enclosing each lung
- 5. five bones on each hand to form palm
- 7. a type of leukocyte or white blood cell
- 8. Carries air between the pharynx and Bronchi Two divisions of trachea near the chest
- 10. vessel passes through
- 12. pushes blood into aorta so it can be carried to all parts of the body
- 13. are made up of elastic fibers
- 15. receives oxygenated blood from the lungs and pumps it to the left ventricle
- 16. Covers all body surfaces except the palms
- 18. that you contract when you want to move
- 20. pushes blood into pulmonary artery so it can go to the lungs for oxygen
- 24. Tough membrane covering outside of bones
- 25. Heart is divided into four parts, or
- 28. the hands and soles of the feet
- 29. Areas where two or more bones join together
- 30. receives blood as it returns from body cells
- 31. which contract automatically
Down
- 1. carry lymph
- 3. Located between left atrium and left ventricle
- 6. Found in certain bones such as vertebrae, ribs, sternum, cranium, and proximal ends of humerus and femur
- 9. Air sacs that resemble a bunch of grapes
- 11. When these enter the body, the body responds by producing
- 14. system All of the systems and organs depend on the
- 17. touch, heat, cold, pain, and pressure
- 19. Partition or wall of cartilage divides nose into two hollow spaces called
- 21. Protect the fingers and toes from injury
- 22. Prevents food and liquids from entering respiratory tract
- 23. receptors
- 26. substance used to combat infection
- 27. Molecules present on the surface of pathogens