![Cov hlab ntsha dorsal yog dab tsi? Cov hlab ntsha dorsal yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14024388-what-is-dorsal-blood-vessel-j.webp)
Video: Cov hlab ntsha dorsal yog dab tsi?
![Video: Cov hlab ntsha dorsal yog dab tsi? Video: Cov hlab ntsha dorsal yog dab tsi?](https://i.ytimg.com/vi/HKm1b57loMU/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov qov qab cov nkoj muaj lub luag haujlwm nqa ntshav mus rau pem hauv ntej ntawm lub earthworm lub cev. Lub ventral ntshav cov nkoj muaj lub luag haujlwm nqa ntshav mus rau sab nraum qab ntawm tus kab mob hauv ntiaj teb lub cev.
Tib neeg kuj nug, dab tsi yog cov hlab ntsha dorsal txuas nrog?
Cov dorsal hlab ntsha khiav raws qhov ntev ntawm sab saud ntawm lub ntiaj teb. Nws cog lus thiab twj ntshav mus rau aortic arches. Lub ventral cov hlab ntsha khiav raws qhov ntev ntawm tus kab mob hauv ntiaj teb.
Tsis tas li, qhov sib txawv ntawm qhov taw qhia Ntshav tau tso rau hauv cov hlab ntsha hauv qab thiab cov hlab ntshav hauv lub cev hauv cov kab mob hauv ntiaj teb li cas? Muaj tsib khub ntawm daim duab aortic, uas yog lub luag haujlwm rau nqus ntshav rau hauv qab thiab cov hlab ntsha ventral . Cov dorsal hlab ntsha nqa ntshav mus rau pem hauv ntej earthworm cov lub cev whereas lub cov hlab ntsha ventral yog lub luag haujlwm nqa ntshav mus rau hauv qab ntawm lub earthworm cov lub cev.
Qhov thib ob, dab tsi yog dorsal ntawm tus cab?
1. Ntsuam xyuas koj kab ntsaum thiab txiav txim siab qhov qab thiab sab ventral. Sab nraub qaum zoo li nthuav dua lwm sab ntawm cua nab . Cov qab sab yog worm cov rounded saum.
Dab tsi yog 2 cov hlab ntsha loj hauv cov kab hauv ntiaj teb?
Nws cov hlab ntsha muaj xws li (1) ob lub hlab ntsha loj (dorsal thiab ventral hlab ntsha), (2) cov hlab ntsha me me uas muab cov ntshav rau tag nrho cov ntaub so ntswg thiab lub cev thiab txuas cov hlab ntsha ventral mus rau cov hlab ntsha dorsal, thiab (3) tsib. khub ntawm aortic qauv uas ua rau lub ntiaj teb cua nab lub siab.
Pom zoo:
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