Video: Puas muaj ntau hom 1 lossis hom 2 pneumocytes?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Pneumocytes . Cov tawv nqaij epithelial ntawm alveoli, lossis pneumocytes , ua de ob hom . Hom II pneumocytes yog loj dua, cuboidal cells thiab tshwm sim ntau dua diffusely tshaj li yam Kuv cell. Lawv pom ua npuas ncauj ntau dua yam Kuv cov cell vim tias lawv muaj phospholipid multilamellar lub cev, ua ntej ua rau mob ntsws surfactant.
Yog li ntawd, hom 2 pneumocytes yog dab tsi?
Kev Txhais Lus Kho Mob ntawm Pneumocyte Pneumocyte : Ib qho ntawm cov kab mob hauv lub ntsws alveoli (lub hnab cua) hauv lub ntsws. Hom 2 pneumocyte : Lub luag haujlwm ntawm lub cell rau kev tsim khoom thiab tso tawm ntawm cov tshuaj tiv thaiv kab mob (cov tshuaj uas txo qhov ntom ntom ntawm cov kua hauv lub ntsws thiab pab txhawb rau lub zog khov ntawm lub ntsws).
Tsis tas li ntawd, hom II pneumocytes nyob qhov twg? Ob hom yog pneumocytes hu ua yam Kuv thiab laj II cov hlwb pom nyob hauv phab ntsa alveolar, thiab cov cell phagocytic loj hu ua alveolar macrophage uas txav mus rau hauv lub lumens ntawm alveoli, thiab hauv cov ntaub so ntswg sib txuas ntawm lawv.
Tsis tas li, 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.
Hom pneumocytes twg tsim cov tshuaj tua kab mob?
phab ntsa yog ib pawg hu ua granular pneumocytes ( Hom II cells), uas tso tawm surfactant , zaj yeeb yaj kiab ntawm cov tshuaj muaj roj ntseeg tau pab txhawb kom txo qis ntawm alveolar nto nro.
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