Chapter 14: Respiratory System
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Transcript of Chapter 14: Respiratory System
Professor Tracy Abram, MAIS, BS
Objectives• Discuss functions of the
respiratory system
• List major organs of the respiratory system
• Investigate and analyze internal and external respiration
• Mechanisms that regulate respiration
Inquiring Minds want to know…What is the function of the respiratory
system?
Respiratory System Functions:Distributes air
Exchanges gassesEffective FiltererDynamic WarmerSuper Humidifier
Structural Plan Figure 14-1 p. 363Respiratory Organs: Nose-olfactory cells for sense of smellLarynx- voice boxPharynx- throatTrachea-windpipeBronchiLungs***Tube with many branches of alveoli****
Alveoli Circulation
capillaries
Alveolar sac
Passive TransportDiffusion: responsible for the gas exchange in
the respiratory system.
Respiratory TractsUpper Respiratory Tract Lower Respiratory Tract
NosePharynxLarynx
TracheaBronchiLungs
Nose
Pharnyx: Throat
Larynx: Voicebox
Trachea: Windpipe
Bronchi, Bronchioles, & AlveoliFigure 14-7, page 370
Cellular RespirationWhen humans
breathe, laugh or talk, we release carbon dioxide. This process is called cellular respiration. In cellular respiration, humans take in food and oxygen and release carbon dioxide and water to produce energy.
Respiration= C6H12O6 (glucose)
+ 6O2 (oxygen)-----------> 6CO2 +6H2O + energy
Breathing mechanicsInspiration Expiration
Inhalation- moves air into the lungs
Diaphragm: muscles separating the abdomen from thoracic cavity
Exhalation- moves air out of the lungs
Figure 14-11 page 376
Respiratory Quiz for you!
Answers to Quiz1. Alveoli2. Nose3. Larynx4. Bronchi5. Trachea6. Lung