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Understanding the Respiratory System: Pathway of Air from Nostrils to Lungs

This informative guide covers the definition and exploration of the upper and lower respiratory tracts, including the pathway of air from the nostrils to the lungs. It identifies key structures like the nares, septum, sinuses, conchae, and more. The text highlights the role of the larynx, trachea, bronchi, bronchioles, alveoli, pleural membranes, and the diaphragm in respiration. It explains the process of inspiration and expiration in detail.

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Understanding the Respiratory System: Pathway of Air from Nostrils to Lungs

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Presentation Transcript

  1. RESPIRATION SYSTEM • I Definition • II Two principal cavities involved in upper • respiratory tract. • III Pathway of air to Lower Resp. Tract • Identify : (1) nares (2) septum (3)frontal • and sphenoid sinus(4) the three conchae • (5) the pharynx

  2. RESPIRATORY SYSTEM contd. • II LOWER RESPIRATORY TRACT • 1. Trace air to lungs • 2. Location and function of the Larynx • (locate the thyroid and cricoid cartilage) • locate the epiglottis • 3. Traachea (“windpipe”) • 4. Bronchi • 5. Bronchioles

  3. RESPIRATION SYSTEM contd. • 6. Alveoli • 7. Pleural Membranes • 1. Pulmonary • 2. Parietal • 8. Diaphragm • 9. INSPIRATION • 10. EXPIRATION

  4. RESPIRATORY SYSTEM contd. • Trace the intake of air with oxygen through inspiration to the completion of exhaled carbon dioxide during the process of expiration.

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