Across
- 2. A type of connective tissue that is firm and flexible; aids in the support of the trachea and bronchi
- 5. The process of exchanging oxygen and carbon dioxide between the bloodstream and the alveoli of the lungs
- 9. The largest artery in the body that leaves the left ventricle and takes oxygenated blood to the body
- 11. The immunity which results from the production of antibodies by the immune system in response to the presence of an antigen
- 13. The small air sacs where gas exchange occurs in the lungs
- 14. A group of different tissues that work together to carry out a job in a system
- 15. A bacterium, virus or other microorganism that can cause disease
- 16. The ribbed tube that carries air from the throat to the lungs
- 18. Smallest part of a living organism
- 19. The small airways that air passes through to the alveoli
- 22. The process of taking air in (inhalation) and out of the lungs (exhalation)
- 23. The lower chambers of the heart that pump blood, the left to the body, and the right to the lungs
- 24. A group of specialised cells that carry out a particular job
Down
- 1. Relating to the lungs. E.g. Pulmonary artery carries blood to the lungs
- 3. The short-term immunity which results from the introduction of antibodies from another person or animal
- 4. A group of different organs which work together to carry out a specific life process in an organism
- 6. Two large veins that return deoxygenated blood from the body to the heart
- 7. Cells found in blood that help defend it from infection such as bacteria and viruses
- 8. Small part of a cell with a particular job to do e.g. nucleus
- 10. A cell in the blood that carries oxygen and carbon dioxide throughout the body
- 11. The upper chambers of the heart that receive blood, the left from the lungs, and the right from the body
- 12. Very thin blood vessel that allows for passage of water, oxygen, nutrients, waste products from cells into the bloodstream
- 17. A blood vessel that carries blood away from the heart; carries mostly oxygenated blood
- 20. A form of indirect protection from disease when a large proportion of the population becomes immune to that disease
- 21. Process in a cell that converts glucose and oxygen to create energy (CO2 and H2O is also given off)
- 23. A blood vessel that carries blood toward the heart; carries mostly deoxygenated blood
