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Understanding the Respiratory System: Parts and Functions

This course covers the different parts of the respiratory system such as the nasal cavity, pharynx, larynx, trachea, bronchi, and lungs, emphasizing their functions and structures. Students will gain knowledge on the anatomy and physiology of each component.

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Understanding the Respiratory System: Parts and Functions

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  1. Respiratory system

  2. Outcome • Students will be able to recognize the different parts of respiratory system. • Students will be able to determine functions of different parts of respiratory system.

  3. It is composed of: • Nasal cavity • Pharynx • Larynx • Trachea and bronchi • Lungs

  4. Nasal cavity • It is bounded by: • Roof: formed of frontal bone and sphenoid bone • Floor: formed by hard palate • Medial wall: formed by nasal septum • Lateral wall: formed by the maxilla and palatine bone

  5. Pharynx • It is a common pathway for the food and the air

  6. Larynx • It extends from the root of the tongue to the cricoids cartilage • It is formed of : • Cartilages • Muscles • Membranes'

  7. Trachea • It is a vertical tube. • It has cartilaginous rings to keep it patent. It connects the larynx to the lungs. • It divides into two bronchi (right & left). • Each bronchus enters the corresponding lung

  8. Bronchi

  9. Lung • There are two in number (right & left). They are conical in shape. It has an apex, base, medial & lateral surfaces. • Difference between the right and left lungs:

  10. 1 1 4 4 Upper lobe Upper lobe 3 2 2 Middle lobe 5 Lower lobe Lower lobe 6 Left lung Right lung . 1. Apex. 2. Oblique fissure. 3. Transverse fissure. 4. Anterior border. 5. Cardiac notch. 6.Lingula.

  11. Possible questions: • By using a table, mention the deference between the right & left lung. • By using a table, mention the deference between the right & left bronchus.

  12. Assignment: • The students are requested to prepare a poster demonstrates the respiratory system • احمد محمد احمد عبد العال عبد الحميد • احمد محمد فوزي عبد العظيم عبد النبي • اخلاص حمدي محمد خليل • اسراء علي محمود علي فرحات

  13. Refrences • Gray's Anatomy for student (2004 recent ed) • Snell's Clinical anatomy (7thed) • Last's Anatomy, Regional and applied (10thed)

  14. Thank you

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