2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Aneurysm yog ib qho chaw loj ntawm cov hlab ntsha, tus yam ntxwv los ntawm lub zais pa zoo li pob. Nws tshwm sim los ntawm qhov txawv txav tsis muaj zog ntawm cov hlab ntsha phab ntsa. Feem ntau hom aneurysm muaj xws li plab aortic aneurysm, thoracic aortic aneurysm thiab intracranial aneurysm.
Puas yog ib qho chaw zoo li Balloon loj ntawm cov hlab ntsha phab ntsa?
Aneurysm yog qhov tawm sab nraud, zoo li lub npuas lossis lub zais pa, tshwm sim los ntawm qhov chaw nyob, txawv txav, tsis muaj zog ntawm phab ntsa hlab ntsha. Aneurysms tej zaum yuav tshwm sim los ntawm ib yam kab mob los yog kab mob kis tau. Aneurysms kuj tseem tuaj yeem yog nidus (pib taw tes) rau kev tsim cov ntshav txhaws (thrombosis) thiab embolization.
Puas yog ballooning tawm ntawm phab ntsa hlab ntsha?
Ib "pob pam" ntawm cov hlab ntsha, feem ntau yog cov hlab ntsha; Qhov tshwm sim ntawm cov quav hniav ua rau cov phab ntsa ntawm cov hlab ntsha tsis muaj zog, tom qab ntawd cov ntshav siab ua rau cov hlab ntsha tuaj yeem tawm mus thiab cov hlab ntsha phab ntsa ua kom txaus ntshai heev.
Dab tsi yog qhov tso nyiaj ntawm cov quav hniav rau ntawm phab ntsa hlab ntsha?
Atherosclerosis, qee zaum hu ua "hardening of the arteries," tshwm sim thaum rog, roj cholesterol, thiab lwm yam khoom tsim nyob rau hauv cov phab ntsa ntawm cov hlab ntsha. Cov deposits no hu ua plaques. Sij hawm dhau mus, cov plaques tuaj yeem nqaim lossis tag nrho cov hlab ntsha thiab ua rau muaj teeb meem thoob plaws hauv lub cev.
Txoj hlab ntsha twg ua rau lub zais pa zoo li qhov loj lossis qhov chaw tsis muaj zog ntawm lubarterial phab ntsa?
Aneurysm yog ib qho o txawv txav los yog pob hauv phab ntsa ntawm cov hlab ntsha, xws li cov hlab ntsha. Nws pib raws li qhov chaw tsis muaj zog hauv phab ntsa ntawm cov hlab ntsha, uas lub zais pa tawm ntawm lub sijhawm dhau los ntawm lub zog ntawm cov hlab ntshav.
Pom zoo:
Puas yog cov hlab ntsha loj tshaj?
Cov hlab ntsha loj tshaj plaws yog lub aorta, lub ntsiab lus siab siab txuas nrog lub plawv sab laug ventricle. Cov ceg aorta mus rau hauv lub network ntawm cov hlab ntsha me me uas txuas mus thoob plaws lub cev. Cov hlab ntsha me me yog hu ua arterioles thiab capillaries.
Puas yog cov hlab ntshav thiab cov hlab plawv zoo ib yam?
Cov kab mob plawv yog qee zaum hu ua ntshav-vascular, lossis tsuas yog cov hlab ntshav, system. Nws muaj lub plawv, uas yog cov khoom siv lub cev, thiab lub kaw lus kaw ntawm cov hlab ntsha hu ua cov hlab ntsha, cov hlab ntsha, thiab cov hlab ntsha.
Puas yog cov hlab ntsha loj dua cov hlab ntsha?
Arterioles nqa ntshav thiab oxygen mus rau hauv cov hlab ntsha me tshaj plaws, cov hlab ntsha. Capillaries yog li ntawd small lawv tsuas pom tau nyob hauv lub tshuab tsom. Cov phab ntsa ntawm capillaries yog permeable rau oxygen thiab carbon dioxide.
Puas yog cov hlab ntsha loj dua?
Cov paj hlwb ntau dua (GSN) yog qhov siab tshaj plaws nyob rau hauv txoj hauj lwm ntawm peb lub paj hlwbthiab nws tau txais ceg ntawm T5-T8 thoracic sympathetic ganglia, tsawg dua splanchnic hlab ntsha (LSN) nyob hauv qab ntawm qhov loj dua thiab tau txais ceg ntawm T9 thiab T10 sympathetic ganglia, thiab qhov tsawg tshaj plaws splanchnic hlab ntsha (ISN) yog qhov qis tshaj … Dab tsi yog cov hlab ntsha loj dua splanchnic?
Puas yog qhov nyuaj ntawm cov hlab ntsha thiab cov membranous?
Dab tsi yog lub luag haujlwm ntawm lub cytoskeleton? Cov txheej txheem nyuaj ntawm flattened vesicles thiab membranous raws uas muaj ribosomes txuas rau nws nto. Yuav ua li cas muaj lub hnab ntim membranous? Golgi Apparatus: Ib qho organelle hauv eukaryotic hlwb uas muaj pawg ntawm cov hnab membranous tiaj tus uas hloov kho, khaws cia, thiab cov khoom siv ntawm endoplasmic reticulum.
