Video: Pacinian corpuscles nyob qhov twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Pacinian corpuscles , nyob tob rau hauv lub dermis ntawm ob daim tawv nqaij glabrous thiab plaub hau, yog structurally zoo li Meissner's lub cev . Lawv pom muaj nyob rau hauv cov pob txha periosteum, sib koom capsules, pancreas thiab lwm yam viscera, lub mis, thiab qhov chaw mos.
Raws li, txheej ntawm daim tawv nqaij yog Pacinian corpuscle?
dermis
Ib sab saum toj no, Lamellated corpuscles nyob qhov twg? Qhov chaw . Lawv tau faib rau ntau qhov chaw ntawm daim tawv nqaij, tab sis tsom mus rau thaj chaw tshwj xeeb tshaj yog nkag tau rau lub teeb kov, xws li cov ntiv tes thiab daim di ncauj. Tshwj xeeb tshaj yog, lawv yog cov feem ntau nyob nyob rau hauv daim tawv nqaij glabrous tsuas yog hauv qab daim tawv nqaij nyob hauv dermal papillae.
Hauv qhov no, Pacinian corpuscle pom dab tsi?
Lamellar lub cev (los yog Pacinian corpuscles ; tshawb pom los ntawm Italian anatomist Filippo Pacini) yog ib qho ntawm plaub hom loj ntawm mechanoreceptor cell hauv glabrous (hairless) mammalian daim tawv nqaij. Lamellar lub cev kuj pom muaj nyob rau hauv lub pancreas, qhov twg lawv ntes vibration thiab tejzaum nws tsawg zaus suab.
Cov paj hlwb dawb nyob qhov twg?
Free Nerve Endings . Pain Receptors kuj hu ua dawb paj xaus . Cov receptors yooj yim no muaj nyob rau hauv dermis nyob ib ncig ntawm lub hauv paus ntawm cov hauv paus plaub hau thiab ze rau ntawm daim tawv nqaij (epidermis) qhov twg cov plaub hau tawm ntawm daim tawv nqaij.
Pom zoo:
Qhov chaw nyob ntawm thawj lub tsev kawm qib siab kho hniav nyob hauv ntiaj teb nyob qhov twg?
Dr. John M. Harris tau pib lub ntiaj teb thawj lub tsev kho hniav hauv Bainbridge, Ohio, thiab tau pab tsim kho hniav raws li kev noj qab haus huv. Nws qhib rau 21 Lub Ob Hlis 1828, thiab niaj hnub no yog tsev khaws puav pheej kho hniav. Thawj lub tsev kawm kho hniav, Baltimore College ntawm Kev Kho Hniav, tau qhib hauv Baltimore, Maryland, Asmeskas xyoo 1840
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