2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Capillaries me me, ib txwm nyob ib ncig ntawm 3-4µm, tab sis qee qhov capillaries tuaj yeem yog 30-40 µm inch. Cov kab mob loj tshaj plaws muaj nyob hauv lub siab. (capillar los ntawm Greek rau cov plaub hau zoo li). Capillaries txuas arterioles rau venules.
qhov twg capillaries ntau tshaj?
Capillaries muaj ntau tshaj plaws hauv daim ntaub thiab lub cevuas yog metabolically active. Piv txwv li, cov leeg nqaij thiab ob lub raum muaj cov kab mob capillary ntau dua li cov ntaub so ntswg sib txuas.
Ntawm cov hlab ntsha tuaj yeem pom?
Cov hom capillaries no muaj nyob hauv qee cov ntaub so ntswg, suav nrog cov koj lub siab, tus po, thiab cov pob txha. Piv txwv li, hauv koj cov pob txha pob txha, cov hlab ntsha no tso cai rau cov qe ntshav uas tsim tawm tshiab nkag mus rau hauv cov hlab ntsha thiab pib ncig.
Dab tsi yog cov kab mob capillaries ntau tshaj?
Hom kab mob feem ntau, cov kab mob tsis tu ncua, muaj nyob hauv yuav luag txhua cov ntaub so ntswg vascular. Nruam capillaries yog tus yam ntxwv los ntawm ib tug ua tiav endothelial hauv ob sab phlu nrog nruj junctions ntawm endothelial hlwb.
Puas muaj pes tsawg leeg hauv lub cev?
Lawv, tig mus rau hauv ntau qhov loj ntawm cov hlab ntsha me tshaj plaws-cov hlab ntsha (nrog kwv yees 10 billion hauv nruab nrab tib neeg lub cev).
Pom zoo:
Cov kab kab kab kab kab ua kab mob txaus ntshai npaum li cas?
Nyob rau hauv peb thiab tom ntej instars ntawm lawv txoj kev loj hlob, Pine processionary caterpillars yog mob heev rau daim tawv nqaij ntawm tib neegthiab lwm yam tsiaj. Kev sib cuag yooj yim nrog cov plaub hau ntawm kab ntsig tuaj yeem ua rau pob khaus hnyav (urticaria) thiab khaus qhov muag, thiab qee tus neeg yuav muaj kev fab tshuaj.
Cov kab mob capillaries cuam tshuam li cas nrog cov hlab ntsha thiab cov leeg?
Capillaries txuas cov hlab ntsha mus rau cov leeg. Cov hlab ntsha xa cov ntshav oxygen nplua nuj mus rau cov hlab ntsha, qhov twg qhov sib pauv ntawm cov pa thiab carbon dioxide tshwm sim. Cov capillaries tom qab ntawd xa cov ntshav pov tseg uas nplua nuj mus rau cov leeg kom thauj rov qab mus rau lub ntsws thiab lub plawv.
Ntawm qhov capillaries pom nyob rau hauv lub cev nyob qhov twg?
Nruam: Cov capillaries no tsis muaj perforations thiab cia tsuas yog me me molecules dhau mus. Lawv tam sim no hauv nqaij, tawv nqaij, rog, thiab paj hlwb. Fenestrated: Cov capillaries no muaj cov pores me me uas tso cai rau cov molecules me los ntawm thiab nyob hauv cov hnyuv, ob lub raum, thiab cov qog endocrine.
Tus kab mob paranasal qhov twg feem ntau cuam tshuam los ntawm tus kab mob?
Paranasal sinus mucocele tshwm sim feem ntau hauv lub frontal thiab ethmoidal sinuses. Cov tsos mob, uas nyob ntawm qhov chaw ntawm kev koom tes thiab kev taw qhia thiab kev nthuav dav, muaj xws li mob, lub ntsej muag o los yog deformity, proptosis, enophthalmos, diplopia, rhinorrhea, thiab qhov ntswg obstruction.
Nyob thaum lub sij hawm tu cov kab mob kab mob no nyob qhov twg?
PI (Lub Chaw Saib Xyuas Kev Loj Hlob) - Ntawm no cov niam txiv ntawm kev lag luam nteg tau rov tsim kho. (3) Grainage: Cov chaw tsim khoom uas tsis muaj kab mob coj mus muag cov noob raug tsim tawm hauv huab hwm coj los muab rau rov qab hu ua Grainages.
