1. Respiratory System

2. Respiratory System Organization: Upper respiratory tract
lower respiratory tract
Function:
Conducting: transports air
Respiratory: exchanges gas

4. Respiratory System Functions
Gas exchange
Gas conditioning (warming, humidifying and cleaning)
Sound production
Olfaction
Defense

5. Upper Respiratory Tract
Composed of
nose
nasal cavity
paranasal sinuses
pharynx (throat)

17. True or False The nasal bone contains a paranasal sinus17 17

18. Text P. 749: Know these structures as well for Lab18 18

19. Your Pharynx is also called your ____________________19 19

25. Lower Respiratory Tract
Conducting airways
Nose, nasal cavity
Pharynx
larynx
trachea,
bronchi, bronchioles
Respiratory portion
respiratory bronchioles,
alveolar ducts,
alveoli

28. The Epiglottis is a. bone b. Dense fibrous connective tissue c
The Epiglottis is a. bone b. Dense fibrous connective tissue c. Cartilage d. Smooth muscle
True or false: The Epiglottis is a structure of the larynx 28 28

30. Text Page 753 30

32. The posterior wall of the trachea is bound by the __________ ___________________
True or false: The Larynx is inferior the trachea 32

34. True or False” The Pulmonary artery returns blood to the Left Atrium34

35. Gross Anatomy of the Lungs
Each lung has a conical shape.
Its wide, concave base rests upon the muscular diaphragm.
Its relatively blunt superior region, called the apex or (cupola), projects superiorly to a point that is slightly superior and posterior to the clavicle.
Both lungs are bordered by the thoracic wall anteriorly, laterally, and posteriorly, and supported by the rib cage.
Toward the midline, the lungs are separated from each other by the mediastinum.

36. 36

39. 39

40. Pleura and negative pressure
Pneumothorax

42. Hemo-thorax

43. Inhalation a. Increases b. Decreases the size of the thoracic cavity
Exhalation , the Diaphragm moves a. Up b. down 43

44. Regulation of breathing
Lower centers
spinal cord (phrenic nerve nuclei and anterior horn cells to intercostal muscles)
Upper centers
medulla
pons