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RESPIRATORY SYSTEM. Respiratory System Function  Air distributor – all parts but Alveoli  Gas Exchanger - Alveoli  Air Filter - Nose  Air warmer –

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Presentation on theme: "RESPIRATORY SYSTEM. Respiratory System Function  Air distributor – all parts but Alveoli  Gas Exchanger - Alveoli  Air Filter - Nose  Air warmer –"— Presentation transcript:

1 RESPIRATORY SYSTEM

2 Respiratory System Function  Air distributor – all parts but Alveoli  Gas Exchanger - Alveoli  Air Filter - Nose  Air warmer – Nose/Mouth  Air humidifier – Nose/Mouth  Regulation of homeostasis, pH of Body

3 Respiratory Tract Divisions Upper Respiratory TractLower Respiratory Tract Nose Nasopharynx Oropharynx Laryngopharynx Larynx Trachea All of Bronchial Tree Lungs

4

5 Accessory Structures  Oral Cavity  Rib Cage  Respiratory Muscles (Diaphragm)

6 Nose  Nasal Cavity  hollow space behind the nose  Nasal septum  divides the nose (bone)  Nasal Hair  In vestibule traps particles  Mucus Membrane  Starts in respiratory portion of nose (after vestibule)  warms and moistens air, also traps particles (dust)

7 Nose  Nasal conchae  bones that divide the nasal cavity  support the mucus membrane  increase surface area (superior, middle, inferior)

8 See page 687 Structure of the Nose Move movement of Air through Nose Nose

9 Pharynx  behind the oral cavity, between the nasal cavity and larynx  space, not a structure

10 Pharynx Function  Path for Respiratory Tract – air path to trachea  Path for Digestive Tract – food path to esophagus  Affects speech production (Vowel Sounds)

11 Pharynx Structure - Page  Nasopharynx – Posterior nares to the soft palate  Oropharynx – Soft palate to Hyoid bone  Laryngopharynx – Hyoid bone to esophagus

12 Larynx  below pharynx and enlargement at the top of the trachea  conducts air in and out of trachea

13 Larynx  Voice Box  Vocal Chords- Glottis  Cartilages of Larynx  Thyroid Cartilage – Adams Apple  Epiglottis – prevents food/liquids in Trachea  Arytenoid – Vocal Chords attach here

14 Larynx Cartilage

15 Larynx Muscles  Intrinsic Muscles – Controls vocal cords  Extrinsic Muscles – Moves Larynx

16 Lower Respiratory Tract  Bronchial Tree (p. 692, See p. 695, Fig 23-13) Parts in order from largest to smallest  Trachea/ Windpipe (11cm or 4.5 inches)  Primary Bronchi  Secondary Bronchi  Bronchioles  Alveolar ducts  Alveolar sacs  Alveoli

17 Alveoli- Gas Exchange  Gas Exchange Gas Exchange

18 Lung Structure  There are 5 lobes in the lungs  Two Superior lobes (one on both sides)  One Middle lobe (Right side ONLY)  Two Inferior lobes (one on both sides) See page 698 – 699 How many on right? Left?

19 Function of Lungs  Air Distribution  Gas Exchange

20 Helpful Resources  Larynx  Steven Tyler's Voice Steven Tyler's Voice  Respiratory Summary  Respiratory System Respiratory System


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