Lwm lub npe rau Meissner lub cev nqaij daim tawv yog dab tsi?

Video: Lwm lub npe rau Meissner lub cev nqaij daim tawv 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.

Ntxiv mus, qhov sib txawv ntawm Meissner's thiab Pacinian corpuscles yog dab tsi?

Meissner's corpuscles yog ceev-adapting, encapsulated neurons uas teb rau tsawg zaus vibrations thiab zoo kov; lawv nyob hauv 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.

Ib tus kuj tseem yuav nug tau, Meissner lub cev ua haujlwm thiab lub cev Pacinian yog dab tsi? muaj nuj nqi nyob rau hauv tib neeg hnov qab qhov xaus, plaub hau follicle receptors, thiab Meissner corpuscles , teb rau lub teeb kov lub ntsej muag; ob tom ntej no, Merkel kawg thiab Ruffini kawg, kov qhov siab; thiab tus kawg, Pacinian corpuscles , rau kev co.

Tom qab ntawd, 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.

Meissner tus ntawv xeem dab tsi?

Lawv yog kov receptors (mechanoreceptors). Nyob hauv dermal papillae ntawm tawv nqaij. Capsulated cov hlab ntsha xaus tsim ntawm txheej txheej ntawm Schwann hlwb thiab cov ceg ntoo dav dav ntawm cov hlab ntsha sib koom.

Pom zoo:

Dab tsi yog txheej txheej sab saum toj ntawm daim tawv nqaij nyob ib sab ntawm daim tawv nqaij?

Lub dermis txuas cov epidermis mus rau hypodermis, thiab muab lub zog thiab kev ywj pheej vim muaj cov collagen thiab elastin fibers. Nws tsuas muaj ob txheej: txheej txheej papillary nrog papillae uas nthuav mus rau hauv daim tawv nqaij thiab qis dua, txheej txheej reticular uas muaj cov ntaub so ntswg sib txuas xoob

Dab tsi yog qhov txawv ntawm daim tawv nqaij thiab daim tawv nqaij daim ntawv xeem?

Qauv: Sib sib zog nqus ntawm daim tawv nqaij; connective ntaub so ntswg muaj li ntawm ob txheej. Muaj nuj nqi: Muaj lub luag haujlwm rau cov txheej txheem muaj zog thiab yoog raws ntawm daim tawv nqaij; lub epidermis pauv cov pa roj, cov khoom noj, thiab cov khoom pov tseg nrog cov hlab ntsha hauv lub dermis

Puas yog lo lus dav dav txhais tau tias yog mob ntawm daim tawv nqaij lossis pob khaus uas tuaj yeem muaj ntau yam ua rau nws yog ib qho cim ntawm ntau hom tawv nqaij tsis xws luag?

Dermatitis yog lo lus dav dav uas piav txog kev ua rau tawv nqaij. Dermatitis yog ib yam mob uas muaj ntau yam ua rau thiab tshwm sim ntau yam. Nws feem ntau yog khaus, tawv nqaij qhuav los yog pob khaus ntawm daim tawv nqaij o, reddened

Npaum li cas ntawm daim tawv nqaij thiab daim tawv nqaij?

txog 2 hli Ua raws li qhov no hauv kev txiav txim siab, tuab npaum li cas ntawm cov epidermis nyob tom qab? Dermis thiab subcutaneous rog Nws yog tuab (nruab nrab 1 txog 4 hli) tshaj li daim tawv nqaij uas yog hais txog nyias li daim ntawv.