![Koj txawv qhov txawv ntawm capillary thiab lub hnab alveolar li cas? Koj txawv qhov txawv ntawm capillary thiab lub hnab alveolar li cas?](https://i.answers-medical.com/preview/medical-health/13891905-how-do-you-distinguish-between-a-capillary-and-an-alveolar-sac-j.webp)
Video: Koj txawv qhov txawv ntawm capillary thiab lub hnab alveolar li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Piav qhia: A. cov hlab ntsha tshwm xim liab vim yog cov ntshav ntws hauv lawv thaum lub alveolar hnab yuav tshwm li thaj ua pob tshab thaum pom cov nqaij hauv lub ntsws nyob hauv qab lub tsom iav. Cov cov hlab ntsha ib txwm nyob ib puag ncig alveolar hnab.
Tib neeg tseem nug, qhov txawv ntawm lub hnab alveolar thiab alveolus yog dab tsi?
1. Alveoli yog tsim los ntawm cov txheej txheej epithelial thiab cov txheej txheem sab nrauv uas nyob hauv cov hlab ntshav thaum alveolar hnab yog qhov kawg ntawm qhov kawg cov leeg cev. 2. Cov alveoli tas yog tsim los ntawm pab pawg lossis pawg ntawm alveoli , thiab nws yog qhov uas lawv sib tham thaum lub sijhawm alveoli yog tsim los ntawm collagen thiab elastic fibers.
Ntxiv mus, qhov sib txawv ntawm Hom 1 thiab Hom 2 alveolar cells yog dab tsi? Feem ntau, hom 1 alveolar cells suav nrog qhov sib pauv roj loj ntawm alveolus thiab yog ib qho tseem ceeb rau kev saib xyuas ntawm kev ua haujlwm permeability barrier ntawm cov leeg daim nyias nyias. Hom 2 pneumocytes yog cov xeeb leej xeeb ntxwv ntawm hom 1 hlwb thiab yog lub luag haujlwm rau cov khoom tsim tawm thiab cov tshuaj homeostasis.
Ntawm no, dab tsi yog lub hnab alveolar?
Cov alveolar hnab yog hnab ntawm ntau alveoli , uas yog cov cell uas pauv cov pa thiab carbon dioxide hauv lub ntsws. Cov cov leeg ducts pab rau alveoli hauv lawv txoj haujlwm los ntawm kev khaws cov huab cua uas tau nqus thiab thauj los ntawm cov kab mob, thiab faib nws mus rau alveoli hauv alveolar hnab.
Vim li cas thiaj muaj cov leeg du hauv cov alveolar ciav?
Cov alveolar cev muaj ob peb lub elastic thiab collagen fibers los txhawb lawv. Me me nqaij leeg ua ke ua pa cov hlab ntsws thiab alveolar cev tuaj yeem tswj huab cua txav hauv acini. Muaj yog qee qhov tshwj xeeb tawg paj hlwb hauv ob sab phlu cov hlab ntsws , suav nrog serous secreting club cells thiab neuroendocrine cells.
Pom zoo:
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Yuav ua li cas siv lawv Steep ob lub hnab tshuaj yej hauv dej kub. Nyem tawm cov kua los ntawm lub hnab tshuaj yej. Txhawm rau siv los ua qhov sov so, tos kom lawv txias me ntsis. Txhawm rau siv los ua kom txias, txias lawv hauv lub tub yees. Muab cov hnab tshuaj yej tso rau ntawm qhov muag kaw li 15 feeb. Rov ua dua ntau zaus raws li xav tau
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Qhov pib tsis txaus yog qhov tsawg kawg ntawm kev txhawb siab xav tau rau ib tus neeg kom pom qhov kev txhawb siab 50 feem pua ntawm lub sijhawm. Qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv me tshaj hauv kev txhawb nqa uas tuaj yeem kuaj pom 50 feem pua ntawm lub sijhawm