Video: Meissner corpuscle yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Tactile lub cev los yog Meissner's corpuscles yog ib yam ntawm cov kws kho tshuab pom los ntawm anatomist Georg Meissner (1829-1905) thiab Rudolf Wagner. Lawv yog ib hom paj hlwb xaus rau ntawm daim tawv nqaij uas yog lub luag haujlwm rau rhiab heev rau lub teeb kov.
Tsis tas li ntawd, lub luag haujlwm ntawm Meissner corpuscle yog dab tsi?
Muaj nuj nqi . Meissner corpuscles muaj cov hlab ntsha cutaneous xaus lub luag haujlwm rau kev xa cov kev xav ntawm kev nplua, kev sib cais thiab kev co[1]. Meissner corpuscles yog cov rhiab heev rau kev vibrations tsawg zaus ntawm 10 txog 50 Hertz thiab tuaj yeem teb rau daim tawv nqaij indentations tsawg dua 10 micrometers.
Ib sab saum toj no, Meissner lub cev zoo li cas? Zoo li Merkel cov disks, Meissner's corpuscles yog tsis raws li nplua nuj nyob hauv xib teg raws li lawv yog hauv cov ntsis ntiv tes. Deeper nyob rau hauv daim tawv nqaij, nyob ze ntawm lub hauv paus, yog Ruffini endings, cov yog kuj paub raws li bulbous lub cev . Lawv yog pom hauv ob daim tawv nqaij thiab plaub hau.
Tsis tas li ntawd, Pacinian thiab Meissner corpuscles nyob rau hauv daim tawv nqaij yog dab tsi?
Meissner's corpuscles yog ceev-adapting, encapsulated neurons uas teb rau tsawg zaus vibrations thiab zoo kov; lawv nyob hauv qhov tsaus ntuj tawv nqaij ntawm cov ntiv tes thiab daim tawv muag. - Pacinian corpuscles yog sai-adapting, sib sib zog nqus receptors uas teb rau sib sib zog nqus siab thiab high-frequency vibration.
Qhov sib txawv ntawm Merkel cells thiab Meissner corpuscles yog dab tsi?
Teb thiab piav qhia: Muaj ob lub ntsiab Qhov sib txawv ntawm Merkel hlwb thiab Meissner corpuscles : Merkel hlwb teb rau lub teeb kov thaum Meissner corpuscles teb rau
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