1 / 18

呼 吸 系 统

呼 吸 系 统. Respiratory system. 34. 气管横切:取自猫, H&E 染色 此片为中空性器官,管壁呈环状,由腔内向外顺次观察。. 气管横切 低倍镜观察 由三层组成: 1. 粘膜层: 1a. 假复层纤毛柱状上皮 , 含杯状细胞。 1b. 固有层: 为细密结缔组织 . 2. 粘膜下层: 疏松结缔组织 , 含混合腺 3. 外膜: 3a. 透明软骨 3b. 致密结缔组织. 3. 3b. 3a. 2. 1. 1b. 1a.

Download Presentation

呼 吸 系 统

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. 呼 吸 系 统 Respiratory system

  2. 34 气管横切:取自猫,H&E染色 此片为中空性器官,管壁呈环状,由腔内向外顺次观察。

  3. 气管横切 低倍镜观察 由三层组成: 1.粘膜层: 1a.假复层纤毛柱状上皮,含杯状细胞。 1b.固有层: 为细密结缔组织. 2.粘膜下层: 疏松结缔组织, 含混合腺 3.外膜: 3a.透明软骨 3b.致密结缔组织 3 3b 3a 2 1 1b 1a

  4. The lower magnification showing the microstructure of the trachea ,which contains tree layers:mucous membrane,submucosa and adventitia. 1.mucosa:composed of pseudostratified ciliated columnar epithelium with more goblet cells. 1a. pseudostratified ciliated columnar epithelium 1b.lamina propria: delicate CT. 2.submucosa: in loose CT embedding mixed glands (G). 3.adventitia: 3a.hyaline cartelage 3b.perichondrium:dense CT 1 1a 1b 2 G 3a 3b 3

  5. Trachea gland

  6. 肺切片:取自猫,H&E染色。 肉眼观察呈泡沫状,其中的有腔结构是小支气管。

  7. 肺切片低倍镜观察 肺实质由导气部和呼吸部组成。 1:显示导气部的小支气管, 1a:假复层纤毛柱 状上皮,深染的为杯状细胞。 1b:环行平滑肌 1c:透明软骨片 1d:混合腺 2.呼吸部的肺泡囊。 1d 1a 2 1b 1c

  8. 细支气管低倍镜观察 : 由假复层纤毛柱状上皮及环行平滑肌组成,偶见腺泡或软骨片。 1a:假复层纤毛柱状上皮 1b:环行平滑肌 1c:腺泡 2.肺泡 1c 1 1a 2 1b 1c

  9. 低倍观察 1.终末细支气管: 由单层柱状上皮和环行平滑肌组成。 1a. 单层柱状上皮 1b.环行平滑肌 2. 肺泡 1 1a 2 1b

  10. 呼吸部高倍镜观察: 呼吸部由呼吸性细支气管(1)、肺泡管(2)肺泡囊(3)、和肺泡(4)组成。 1.呼吸性细支气管: 管壁长,肺泡开口少。管壁由单层立方上皮及环行平滑肌组成。 1a.肺泡开口 1b. 单层立方上皮 1c. 环行平滑肌 1a 1b 1 1c

  11. 2.肺泡管: 管壁肺泡开口多, 呈结节状膨大,由单层上皮和平滑肌组成。 2a. 管壁上皮(单层立方或单层扁平) 2b. 管壁平滑肌 2c. 肺泡开口 2c 2b 2a 2 2b 2a

  12. 低倍镜观察 3.肺泡囊: 多个肺泡共同开口,肺泡之间无结节状膨大。 4.肺泡高倍镜观察: 4a.I型细胞: 细胞核扁,着色深。 4b.II型细胞: 细胞呈立方形,核圆形,着色淡,胞浆浅。 3 3 4a 4b 4

  13. High magnification: a. type I cell of alveoli : flattened nuclei , dark staining b.type II cell: it is cuboidal–shaped cell with round pale nucleus ,the cytoplasm poor staining also. b a

More Related