Video: Cov paj hlwb nyob qhov twg hauv daim tawv nqaij?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Pub dawb Nerve Endings . Pain Receptors kuj hu ua dawb cov hlab ntsha kawg . Cov receptors yooj yim no pom muaj nyob rau hauv lub dermis nyob ib ncig ntawm lub hauv paus ntawm cov hauv paus plaub hau thiab ze rau ntawm qhov chaw. tawv nqaij (epidermis) qhov twg cov plaub hau tawm ntawm lub tawv nqaij.
Ib yam li ntawd, cov hlab ntsha ntawm daim tawv nqaij yog dab tsi?
Nerve Endings Lawv nyob ze ntawm cov hlab ntsha ntawm cov txheej txheem epithelial tawv nqaij , lub cornea, lub alimentary ib ntsuj av, thiab nyob rau hauv connective cov ntaub so ntswg. Feem ntau cov nociceptors teb rau cov cua sov thiab txias, mechanical stimuli, thiab tshuaj txuam nrog cov ntaub so ntswg puas los yog kab mob.
Tsis tas li ntawd, cov kab mob ntawm daim tawv nqaij nyob qhov twg? Lub cutaneous cov receptors ' yog hom kev hnov lus pom muaj nyob hauv dermis lossis epidermis. Lawv yog ib feem ntawm somatosensory system. Tawv nqaij cov receptors muaj xws li cutaneous mechanoreceptors, nociceptors ( mob ) thiab thermoreceptors (kub).
Tsis tas li ntawd, daim tawv nqaij muaj pes tsawg leeg rau qhov mob?
Muaj ntau tshaj peb lab mob receptors thoob plaws hauv lub cev, pom nyob rau hauv tawv nqaij , cov leeg, pob txha, cov hlab ntsha, thiab qee yam kabmob.
Puas muaj cov hlab ntsha hauv daim tawv nqaij?
Lub dermis muaj paj hlwb xaus, hws qog thiab qog roj (sebaceous qog), cov hauv paus hniav, thiab cov hlab ntsha. Cov paj hlwb xaus qhov mob, kov, siab, thiab kub. Qee qhov chaw ntawm cov tawv nqaij muaj ntau dua paj hlwb xaus dua lwm tus.
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
Lub paj hlwb nyob hauv lub hlwb nyob qhov twg?
Frontal lub cev
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
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.
Hom ntaub so ntswg twg ua rau daim tawv nqaij ntawm daim tawv nqaij?
Lub epidermis yog tsim los ntawm stratified squamous epithelium. Lub dermis muaj cov ntaub so ntswg sib txuas, cov leeg nqaij du, thiab cov paj hlwb