Week 78-Respiratory.ppt - Respiratory System Chapter 4...

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Copyright © 2015. F.A. Davis Company Respiratory System Respiratory System Chapter 4 Chapter 4
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Structure and Function Upper respiratory tract Nose – rhin/o, nas/o Air enters and leaves. Cilia sweep foreign material toward throat for elimination. Pharynx (throat)- pharynx/o Airway connection to larynx. Serves as passageway for air from nose and food from mouth.
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Structure and Function Upper respiratory tract (continued) Larynx (voice box)- laryng/o Contains structures that make vocal sounds possible. Connected to the trachea. Trachea (windpipe)- trache/o Branches in two tubes called bronchi. Serves as passageway for air to the bronchi.
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Structure and Function Lower respiratory tract Bronchi- bronchi/o, bronch/o Bronchi enter a lung and subdivide into smaller branches called bronchioles. Bronchioles are the smallest branches of the bronchi and terminate at the alveoli.
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Structure and Function Lower respiratory tract (continued) Lungs- pulmon/o, pneum/o Left lung has two lobes. Right lung has three lobes. ٭ ٭٭٭٭ pulmonology is the study of the respiratory system (lower respiratory tract and thoracic wall)
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Structure and Function Lower respiratory tract (continued) Alveoli- alveol/o Air sacs of lungs provide breathing (ventilation). Diaphragm- phren/o Aids in the process of breathing. Contracts and descends with each inhalation (inspiration).
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Copyright © 2015. F.A. Davis Company Other functions Respiration External, exchange of air at the lungs. Internal, exchange of gases at the cellular level within organs of the body. W ith help of cardiovascular system Provides oxygen (O 2 ) to body cells . Eliminates the waste product carbon dioxide ( CO 2 ). 4 RESPIRATORY SYSTEM Structure and Function Structure and Function 4 major functions 1.Ventilation 2.External respiration 3.Transport 4.Internal respiration
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Exercise Structure and Function Exercise 1. What is the main function of the respiratory system? 2. Name the structures of the upper respiratory tract (URT). 3. What are the structures of the lower respiratory tract? 4. Name the smaller branches of the bronchi.
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Copyright © 2015. F.A. Davis Company 4 RESPIRATORY SYSTEM Structure and Function Exercise Structure and Function Exercise 5. What are the tiny air sacs in the lungs called?
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  • Fall '19
  • F.A. Davis Company, Pharynx

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