1. The Anatomy of the Respiratory System

2. 5 Main Functions of the Respiratory System
____________________
Gas exchanger
_____________________
__________________
Allows for sense of smell

3. Divisions of the Respiratory System
1. ___________________(outside thorax)
_________
Nasal Cavity
Larynx

4. Divisions of the Respiratory System
2. _________________________(within thorax)
___________
Bronchial Tree
_____________

5. Structures of the Upper Respiratory Tract
________________________
Palantine bone separates nasal cavity from mouth.
Cleft palate - Palantine bone does not form correctly, difficulty in swallowing and speaking.
___________ - separates right and left nostrils
rich blood supply = nose bleeds.
________ - 4 air containing spaces – open or drain into nose.

6. Structures of the Upper Respiratory Tract
_____________
3 divisions
____________ - behind nose to soft palate.
____________ - behind mouth, soft palate to hyoid bone.
tonsils
____________ - hyoid bone to esophagus.

7. Structures of the Upper Respiratory Tract Pharynx Continued
Changes shape to allow for vowel sounds = _____________.

8. Upper Respiratory Tract Functions
________________________
Receptors for smell
_______________________________________________________________
__________________________
Resonating chambers for voice

9. Structures of the Lower Respiratory Tract
_______________
Root of tongue to upper end of trachea.
Made of cartilage
2 pairs of folds
Vestibular/false vocal cords: thick folds mucous membranes that protect true cords

10. Structures of the Lower Respiratory Tract larynx cont…
________________- adam’s apple - larger in males due to testosterone.
_________________ - flap of skin (hatch) on trachea, moves when swallowing and speaking.
closes off trachea when swallowing food

11. Structures of the Lower Respiratory Tract
________________
Larynx to bronchi
Consists of smooth cartilage and C shaped rings of cartilage.
_______________ - cutting of an opening in trachea to allow breathing.

12. Structures of the Lower Respiratory Tract
________________
Tubes that branch off trachea and enter into lungs
______________
Branches: Primary bronchi—secondary bronchi—tertiary bronchi—bronchioles
Bronchioles branch into microscopic alveolar ducts. Terminate into alveolar sacs
____________________________________________

13. Gas Exchange Between the Blood and Alveoli
Figure 10.8A

14. Structures of the Lower Respiratory Tract
________________
Extend from diaphragm to clavicles
________________________________
Visceral pleura (membrane) adheres to the lungs.

15. Organs in the Respiratory System
STRUCTURE
FUNCTION
nose / nasal cavity
pharynx (throat)
larynx
trachea (windpipe)
bronchi
bronchioles
alveoli

16. (Plural – bronchi)
Bronchioles

17. Lung Anatomy