1 / 30

Respiratory System

Respiratory System. By: Wang Qiao-zhi. Objectives ： Recognize the general structure of trachea. 2. Observe the changes features that occur in the walls of conducting portions of lung. 3. Distinguish the various segments of the respiratory system.

anthony-avery
Télécharger la présentation

Respiratory System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Respiratory System By: Wang Qiao-zhi

  2. Objectives： • Recognize the general structure of trachea. • 2. Observe the changes features that occur in the walls of conducting portions of lung. • 3. Distinguish the various segments of the respiratory system. • 4. Realize typeⅡ alveolar celland macrophage in alveolar.

  3. slides: 1.气管（trachea） 2.肺（Lung）

  4. 1、气管（trachea） • 1) Naked eye:In the specimen the large “C” shaped blue band is the hyaline cartilage.

  5. 1. Trachea, H&E Lower magnification(×4)

  6. Epithelium Mucosa lamina propria Submucosa seromucous glands+LCT adventitia Hyaline Cartilage+LCT 1. Trachea, H&E

  7. perichondrium

  8. Folds

  9. 2. Lung, H&E

  10. How to distinguish the BV and intrapulmonary bronchi? BV: endothelium, simple squamous epi,blood Bronchi:Pseudo-stratifiedCiliated Columnar Epi/ ciliated simple columnar /simple columnar epi

  11. Small bronchi cartilage

  12. Small bronchioles SM Cartilage plate Higher magnification(×40)

  13. Bronchioles： ciliated simple columnar A few glands, goblet cells.. Bundle of smooth muscle Distinguish from small bronchi , no pieces of hyaline cartilage.

  14. circular mucosa plica • simple columnar epi: IT is difficulty to distinguish from Bronchioles • goblet cell, gland, cartilage disappear • A whole layer of SM

  15. Respiratory portion : respiratory bronchioles alveolar ducts alveolar sacs alveoli

  16. Arrow – Respiratory bronchiole Arrowhead – Branch of Pulmonary artery

  17. Arrow head – Interrupted smooth muscle layer

  18. knob-liked structure alveoli alveolar duct alveolar sac

  19. alveolar duct terminal bronchiole respiratory bronchiole

  20. Higher magnification(×40) type I alveolar cell macrophage type II alveolar cell

  21. Find structurs as follow: Lower magnification :small bronchioles(if present), bronchiole, respiratory bronchiole, alveolus Higher magnification :and the two cells (type Ⅱ and dust cell)

  22. QUIZ Small bronchi

  23. respiratory bronchiole

  24. terminal bronchiole

  25. respiratory bronchiole alveolar duct terminal bronchiole bronchiole

More Related