2. Respiratory System

3. Agriculture, Food, and, Natural Resource Standards Addressed AS.01.01. Evaluate the development and implications of animal origin, domestication and distribution on production practices and the environment. AS.01.01.02.a. Research and summarize major components of animal systems.

4. Upper Respiratory System Consists of the: nose (snout, nostrils, etc.) mouth pharynx epiglottis larynx

5. Tongue Esophagus Mouth Trachea Epiglottis Nasal cavity Larynx Pharynx Upper Respiratory System

6. Mucous membranes lining of respiratory tract that secrete mucus.

7. Upper Respiratory System Mucus slimy secretion that helps to warm, moisten, and filter air.

8. Upper Respiratory System Cilia tiny wave-like hairs that line the nostrils and help to filter air.

9. Upper Respiratory System Pharynx passageway shared by the digestive and respiratory systems.

10. Pharynx Upper Respiratory System

11. Epiglottis tiny flap that covers the larynx during swallowing.

12. Epiglottis Upper Respiratory System

13. Larynx “voice box” contains vocal cords that vibrate when air passes through.

14. Larynx Upper Respiratory System

15. Lower Respiratory System Trachea “windpipe” has rings of cartilage that keep its shape.

16. Trachea

17. Lower Respiratory System Bronchi branches at the bottom of the trachea that are contained in the lungs. Singular: bronchus

18. Bronchi

19. Lower Respiratory System Bronchial tree term describing how branches of the bronchi get continually smaller, like a tree branch.

20. Lower Respiratory System Bronchioles smallest branches of the bronchial tree.

21. Bronchioles

22. Lower Respiratory System Alveoli grape-like clusters at ends of bronchioles where exchange of gases occurs.

23. Alveoli

24. Lower Respiratory System Lungs paired organs containing bronchi that are divided into clearly defined lobes.

25. Lungs

26. Lower Respiratory System Diaphragm a muscle located below the lungs that contracts causing the lungs to fill with air.

27. Breathing Inhalation -drawing in of a breath

28. Breathing Exhalation – release of a breath

29. Breathing Apnea – not breathing

30. Breathing Dyspnea – difficult breathing

31. Breathing Bradypnea – abnormally slow breathing rate

32. Breathing Tachypnea – abnormally fast breathing rate

33. Breathing Respiration – exchange of oxygen and carbon dioxide gases in the lungs