chapter 1 Respiratory System
Chapter 15 Respiratory System
Components nose pharynx --larynx -trachea -bronchi lung
1. Components ---nose ---pharynx ---larynx ---trachea ---bronchi ---lung
2 Trachea and main bronchi three layers 1) Mucosa --epithelium pseudostratified ciliated columnar epithelium lamina propria: CT, contain LC, PC, MC, BV, LV
2. Trachea and main bronchi three layers 1) Mucosa: ---epithelium: pseudostratified ciliated columnar epithelium ---lamina propria: CT, contain LC, PC, MC, BV, LV
Pseudostratified ciliated columnar epi ciliated cell columnar cilia goblet ce‖ ●/ basal cel: -pyramidal, basally- located -undifferentiated cell->ciliated cell or goblet cell
Pseudostratified ciliated columnar epi. ciliated cell: columnar, cilia goblet cell basal cell: -pyramidal, basallylocated -undifferentiated cell→ciliated cell or goblet cell
● brush ce columnar microvi EM: RER, no g 刷细胞刷细胞杯状基细胞纤毛小颗粒细胞 细胞 细胞 function: not very clear, may be become into ciliated cell receive sensory stimuli epitheliodendritic synapse
brush cell: -columnar, microvilli, -EM: RER, no g. -function: not very clear, may be i. become into ciliated cell ii.receive sensory stimuliepitheliodendritic synapse
diffuse neuroendocrine cell less, pyramidal EM: dense-core g.-small granule cell neuroepithelial body: cell+ NF Function: secret hormones to regulate contract of SM and secretion of gland . 5-hydroxytryptamine(serotonin) calcitonin ⅲi. enkephalin clear basement membrane
diffuse neuroendocrine cell: -less, pyramidal -EM: dense-core g.-small granule cell neuroepithelial body: cell + NF -Function: secret hormones to regulate contract of SM and secretion of gland i. 5-hydroxytryptamine(serotonin) ii. calcitonin iii. enkephalin * clear basement membrane
2)Submucosa LCT with BV, LV and n ● tracheal gland:mxed ● diffuse LT and ln SIg a= secretory component (secreted by epi cell)+ lg a produced by plasma cell)
2) Submucosa: LCT, with BV, LV and N tracheal gland: mixed diffuse LT and LN * S Ig A = secretory component (secreted by epi. cell) + Ig A ( produced by plasma cell)
N ac k 3)Adventitia ● cartilage ring:16-20C” shaped e circular ligament: elastic F SM- posterior part( membrane part SM, elastic f, tracheal gland
3) Adventitia: cartilage ring: 16-20 “C ” shaped circular ligament: elastic F SM- posterior part( membrane part): SM, elastic F, tracheal gland
肺静脉 卜支气 a. 3. Lung 呼吸性细 支气管 paired organ,燃 肺泡管 located In thoracic cavity sexi 一肺泡囊 ∴一肺泡 终末網攴气管密∴∴ 钟泡囊 肺动脉
3. Lung ---paired organ, located in thoracic cavity
1) General structure capsule: visceral/layer of pleura- serous membrane-CT+ mesothelium parenchyma: all branches of bronchi and alveoli( right 3, left 2) ---interstitia CL BVLVN
1) General structure: ---capsule: visceral layer of pleuraserous membrane-CT + mesothelium ---parenchyma: all branches of bronchi and alveoli( right 3, left 2) ---interstitia: CT, BV, LV, N
