2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Chorda tympani nqa ob hom paj fiberslos ntawm lawv cov keeb kwm nrog lub ntsej muag paj hlwb mus rau lub paj hlwb uas nqa lawv mus rau lawv qhov chaw: Cov khoom siv tshwj xeeb uas muaj qhov muag pom los ntawm cov anterior ob feem peb ntawm tus nplaig.
Ntawm twg ntawm cov hlab ntsha hauv qab no puas yog lub ntsej muag paj hlwb xa los ntawm chorda tympani?
Chorda Tympani:
Chorda tympani muab kev hnov qab los ntawm sab xub ntiag 2/3 tus nplaig thiab tseem nqa preganglionic parasympathetic paj fibers uas innervate submandibular thiab sublingual salivary qog.
Chorda tympani ceg yog dab tsi?
Chorda tympani yog ib ceg ntawm lub ntsej muag paj hlwb, lub ntsej muag paj hlwb yog cov hlab ntsha thib ob. Lub chorda tympani nqa saj fibers los ntawm sab pem hauv ntej ntawm tus nplaig, thawj arch derivative, yog li ntawd lub chorda tympani yog lub pretrematic ceg ntawm lub ntsej muag paj hlwb.
Puas yog chorda tympani lub cev muaj zog lossis hnov qab?
Tshwj xeeb Sensory Function Zoo li lwm cov paj hlwb, chorda tympani muab cov lus qhia txog kev hnov qab xws li mob thiab kub ntawm tus nplaig mus rau lub hlwb. Txawm li cas los xij, nws kuj yog qhov tshwj xeeb heev thiab cuam tshuam nrog cov cim saj hauv pem hauv ntej ob feem peb ntawm koj tus nplaig.
chorda tympani innervate hauv pob ntseg yog dab tsi?
Chorda tympani nqa qhov kev xav ntawm saj los ntawm sab xub ntiag ntawmtus nplaig mus rau lub hlwb ntawm nruab nrab pob ntseg. Nws kuj thauj efferent secretomotor innervation mus rau ob qho tib si sublingual thiab submandibular qog.[10]
Pom zoo:
Lub sijhawm metaphase cov spindle fibers tshwm sim los ntawm?
Cov spindle fibers tsim thaum lub sij hawm prophase. Thaum lub sij hawm metaphase ntawm cell division, spindle fibers radiate los ntawm cov centrioles ntawm cov opposite ncej. spindle fibers txuas rau qhov twg thaum lub sijhawm metaphase?
Los ntawm cov khoom tsim thaum lub sij hawm tsim cov bakelite yog?
Nyob rau hauv rooj plaub ntawm bakelite phenol thiab formaldehyde condense los tsim cov monomer muab H2O raws li cov khoom lag luam. Bakelite tseem hu ua co-polymer. Cov tshuaj tiv thaiv: Phenol reacts nrog formaldehyde los tsim o-Hydroxy methyl phenol.
Puas yog cov fibers ntev feem ntau yog ntuj lossis tib neeg tsim?
Fiber lossis fiber (los ntawm Latin: fibra) yog natural lossis man-made substance uas ntev dua li qhov dav. Fibers feem ntau yog siv rau hauv kev tsim khoom ntawm lwm cov ntaub ntawv. Cov khoom siv hluav taws xob muaj zog tshaj plaws feem ntau suav nrog cov fibers, piv txwv li carbon fiber thiab ultra-high-molecular-weight polyethylene.
Cov fibers thiab sclereids nyob qhov twg hauv cov nroj tsuag?
Cov fibers no muaj nyob hauv lub cortex, thiab xylem thiab phloem ntawm cov nroj tsuag. Fibers muab cov neeg kho tshuab kev txhawb nqa. Hom sclereids yog Macro, osteo, Astro, Brachy sclereids. fiber ntau pom nyob rau hauv ib tsob nroj nyob qhov twg?
Cov fibers twg tso norepinephrine (ne)?
paj hlwb uas tso tawm norepinephrine yog hu ua adrenergic fibers. Feem ntau sympathetic postganglionic fibers tso norepinephrine. Lub ceg twg ntawm ANS tso tawm norepinephrine? Nws qhov chaw loj ntawm kev khaws cia thiab tso tawm yog cov neurons ntawm lub siab xav txog lub paj hlwb(ib ceg ntawm lub paj hlwb autonomic).
