Peb puas yuav tsum paub meej txog txheej nruab nrab ntawm peb daim tawv nqaij, lub dermis?

Koj puas tau xav tias koj daim tawv nqaij ua haujlwm zoo kawg li cas? Peb daim tawv nqaij tsis yog tsuas yog ib daim npog rau peb lub cev xwb. Nws yog ib lub cev uas nyuaj thiab tseem ceeb heev. Peb daim tawv nqaij muaj peb txheej tseem ceeb. Hnub no peb yuav tham txog cov txheej tseem ceeb tshaj plaws ntawm cov txheej no, txheej nruab nrab. Peb hu nws ua dermis . Qee zaum nws hu ua corium , uas yog lo lus Latin txhais tau tias "tawv nqaij."

Lub dermis yog dab tsi? Hais yooj yim xwb...

Hais yooj yim xwb, txheej nruab nrab ntawm koj daim tawv nqaij yog dermis. Txheej sab saud hu ua epidermis, thiab txheej hauv qab hu ua hypodermis. Yog li ntawd, dermis nyob nruab nrab ntawm txheej sab saud thiab txheej hauv qab.

Xav txog nws zoo li ib lub sandwich. Daim mov ci sab saud yog daim epidermis, daim hauv qab yog hypodermis. Cov khoom qab qab hauv nruab nrab yog daim dermis. Sab hauv daim dermis no, muaj ob txheej ntxiv ntawm lawv tus kheej. Cia peb saib qhov ntawd thiab.

Ob txheej hauv lub dermis yog dab tsi?

Yog lawm, daim tawv nqaij no tsis yog ib txheej xwb. Muaj ob ntu ntxiv nyob hauv. Lawv yog:

1. Reticular Dermis - txheej hauv qab

Qhov no yog qhov tuab tshaj plaws ntawm daim tawv nqaij dermis, nyob hauv qab nws. Nws zoo li lub hauv paus ntawm lub tsev. Nws nyob hauv qhov no uas muaj ntau yam tseem ceeb rau peb daim tawv nqaij nyob.

• Cov hlab ntsha: Cov no yog cov uas coj cov khoom noj khoom haus tsim nyog rau daim tawv nqaij.
• Cov qog: Tej yam xws li cov qog hws, cov qog sebaceous (uas tsim cov roj).
• Cov plaub hau follicle: Qhov no yog qhov uas cov plaub hau ntawm peb lub cev loj hlob.
• Lymphatics: Muaj feem xyuam rau lub cev tiv thaiv kab mob.
• Cov hlab ntsha: Cov no muab kev xav.
• Cov hlwb rog.

Cov dermis reticular no yog ib puag ncig los ntawm lub network ntawm elastin thiab collagen fibers. Xav txog nws li no: elastin zoo li ib txoj hlua roj hmab, thiab collagen zoo li ib txoj xov muaj zog. Ob qho no muab peb cov tawv nqaij nws lub zog thiab kev ywj pheej. Ob qho no tso cai rau peb ncab thiab ncab peb cov tawv nqaij.

2. Papillary Dermis - Txheej sab saud

Qhov no yog txheej nyias nyias me ntsis saum lub dermis. Nws tuab dua li lub reticular dermis. Nws kuj muaj ntau yam haujlwm tseem ceeb:

• Cov collagen fibers.
• Cov hlwb Fibroblast: Cov no yog cov hlwb uas pab ua cov khoom zoo li collagen.
• Cov hlwb rog.
• Cov voj voog capillary: Pab txhawb nqa cov epidermis.
• Cov hlab ntsha.
• Cov receptors kov (piv txwv li Meissner corpuscles): pab peb hnov ​​​​​​qhov kov.
• Cov hlwb tua cov kab mob (phagocytes): Zoo li cov neeg tiv thaiv ntawm peb daim tawv nqaij.

Cov tawv nqaij papillary dermis no txuas mus rau txheej hauv qab ntawm daim tawv nqaij epidermis. Ob txheej no txuas nrog ib leeg zoo li cov ntiv tes ntawm peb txhais tes sib koom ua ke . Qhov no yog vim li cas thiaj muaj kev sib txuas zoo ntawm txheej sab saud thiab txheej nruab nrab.

Yog li ntawd, qhov txawv ntawm daim tawv nqaij thiab daim tawv nqaij epidermis yog dab tsi?

Tam sim no koj muaj lub tswv yim me ntsis txog ob txheej no, cia peb piav qhia ntxiv me ntsis.

• Epidermis: Qhov no yog txheej sab nraud tshaj plaws, nyias tshaj plaws ntawm peb daim tawv nqaij. Nws zoo li peb cov khaub ncaws. Nws ua rau peb lub cev muaj dej txaus, tsim cov hlwb tawv nqaij tshiab, thiab tiv thaiv peb ntawm kev puas tsuaj sab nraud (xws li qhov txiav, khawb, thiab kab mob). Nws kuj yog qhov chaw uas cov melanin uas muab nws cov xim rau peb daim tawv nqaij yog tsim.

• Dermis: Qhov no yog txheej nruab nrab, tuab tshaj plaws ntawm daim tawv nqaij . Nws tuab dua li epidermis. Nws muaj collagen thiab elastin, uas ua rau daim tawv nqaij muaj zog, tuab, thiab txhawb nqa.

Xav txog seb, yog tias daim tawv nqaij sab nraud zoo li lub ru tsev, daim tawv nqaij sab hauv yog cov phab ntsa thiab cov ncej uas tuav lub ru tsev ntawd ua ke.

Cov nqaij sib txuas, cov hlab ntsha kawg, cov qog hws, cov qog roj, thiab cov plaub hau hauv peb daim tawv nqaij puav leej nyob hauv dermis. Qhov no txhais tau tias feem ntau ntawm cov "neeg ua haujlwm" ntawm daim tawv nqaij nyob ntawm no.

Cov kev pabcuam dab tsi uas lub dermis muab rau peb lub cev?

Txhua txheej ntawm peb daim tawv nqaij ua haujlwm ua ke los tiv thaiv peb lub cev. Ntawm lawv, dermis muaj ntau yam haujlwm tshwj xeeb. Saib seb:

• Txhawb nqa Epidermis: Lub dermis muab kev txhawb nqa zoo rau txheej sab saud vim nws cov qauv muaj zog thiab elasticity. Tsis tas li ntawd, cov hlab ntsha hauv dermis nqa cov as-ham tsim nyog rau epidermis.
• Nws tso cai rau peb hnov ​​​​​​ntau yam kev xav: Cov hlab ntsha kawg hauv daim tawv nqaij yog qhov uas tso cai rau peb hnov ​​​​​​tej yam xws li kev nyem, mob, kub, txias, thiab khaus . Xav txog nws, yoov tshaj cum tom mob, lub voos xwmfab dej khov xav tias txias - tag nrho cov cim no los ntawm daim tawv nqaij.
• Cov hws tawm los: Koj puas hws thaum koj kub lossis ntxhov siab? Cov hws ntawd yog tsim los ntawm cov qog hws hauv daim tawv nqaij. Thaum peb hws, pebLub cev kub raug tswj (thermoregulation) .
• Ua kom daim tawv nqaij noo: Lub dermis muaj cov qog sebaceous . Cov no tso tawm cov roj hu ua sebum . Cov sebum no yog qhov ua rau peb daim tawv nqaij thiab cov plaub hau noo thiab ci ntsa iab, yam tsis ua rau lawv qhuav.
• Cov plaub hau raug tsim tawm: Cov plaub hau raug tsim tawm los ntawm cov plaub hau follicles hauv dermis, yuav luag txhua qhov chaw ntawm lub cev tshwj tsis yog peb txhais tes thiab peb txhais taw.

Lub dermis pab lwm yam kabmob li cas?

Ua ke nrog lwm cov txheej ntawm daim tawv nqaij, lub dermis tiv thaiv peb lub cev pob txha, cov kab mob sab hauv, cov leeg, thiab cov ntaub so ntswg los ntawm kev puas tsuaj sab nraud, zoo li lub plhaub tiv thaiv.

Lub dermis nyob qhov twg? Nws loj npaum li cas? Nws ua los ntawm dab tsi?

Raws li peb tau hais ua ntej lawm, lub dermis yog txheej nruab nrab ntawm daim tawv nqaij, nyob nruab nrab ntawm epidermis thiab hypodermis.

Qhov tuab ntawm qhov no txawv ntawm qhov chaw mus rau qhov chaw ntawm lub cev. Piv txwv li, nws nyias heev ntawm qhov muag, li 0.6 millimeters . Tab sis ntawm sab nraub qaum, nws tuaj yeem tuab li 4 millimeters .

Cov tawv nqaij dermis feem ntau yog ua los ntawm cov nqaij uas muaj ntau cov hlab ntsha. Nws kuj muaj cov hauv qab no:

• Collagen
• Elastin
• Ib yam kua ntshiab, zoo li jelly (cov khoom hauv av) uas puv qhov chaw ntawm cov cell thiab cov fibers.
• Ntau yam qog xws li cov qog hws thiab cov qog sebaceous.
• Cov plaub hau follicle .

Puas muaj cov kab mob uas cuam tshuam rau lub dermis?

Yog, muaj tseeb tiag. Muaj ntau yam mob thiab kev tsis zoo uas cuam tshuam rau daim tawv nqaij. Nov yog ob peb yam piv txwv:

• Ehlers-Danlos syndrome: Qhov no yog ib qho mob caj ces uas cuam tshuam rau daim tawv nqaij, pob qij txha, thiab cov hlab ntsha.
• Mob pob khaus / Mob ntsws: Ib qho mob uas ua rau khaus, liab, thiab nce siab tshwm sim sai sai rau ntawm daim tawv nqaij.
• Marfan syndrome: Qhov no kuj yog ib qho mob caj ces uas cuam tshuam rau cov ntaub so ntswg sib txuas.
• Primary dermal melanoma: Ib hom mob qog nqaij hlav txaus ntshai.
• Kev puas tsuaj ntawm lub hnub ci: Kev puas tsuaj rau daim tawv nqaij los ntawm kev raug lub hnub ntev.
• Kab mob Systemic sclerosis (scleroderma): Ib yam kab mob uas daim tawv nqaij tuab thiab tawv.
• Cov qog nqaij hlav: Muaj ntau hom qog nqaij hlav uas tuaj yeem tshwm sim ntawm daim tawv nqaij.

Cov yam ntxwv ntawm cov teeb meem dermis no yog dab tsi?

Nov yog qee cov tsos mob uas tshwm sim rau cov mob uas cuam tshuam rau lub dermis:

• Kev ntws tawm ntawm cov hlab ntsha (extravasation) yog qhov uas cov ntshav lossis lwm yam kua dej tawm ntawm cov hlab ntsha lossis cov hlab ntsha me me mus rau hauv cov nqaij .
• Kev hloov pauv hauv cov pob txha, qhov muag, lub ntsws, daim tawv nqaij, lub plawv, thiab cov hlab ntsha .
• Cov tawv nqaij tsaus nti, khaus khaus .
• Qhov txawv txav, yooj yim mob nqaij .
• Hypermobility ntawm cov pob qij txha .
• Daim tawv nqaij du heev, nyias, thiab ywj dua li qub .
• Kev o ntawm cov ntaub so ntswg .
• Cov pob khaus zoo li eczema (Welts) .

Yog koj muaj cov tsos mob no, zoo dua mus nrhiav kev pab kho mob.

Yuav ua li cas thiaj kuaj tau seb daim tawv nqaij dermis puas noj qab nyob zoo?

Cov kws kho mob ua ntau yam kev kuaj mob kom paub seb puas muaj teeb meem nrog daim tawv nqaij. Qee qhov ntawm lawv suav nrog:

• Kev kuaj noob caj noob ces: Cov no tuaj yeem pab kuaj mob qee yam mob (piv txwv li Ehlers-Danlos syndrome).
• Kev kuaj daim tawv nqaij: Yuav muab ib daim tawv nqaij me me coj mus kuaj hauv qab lub tshuab tsom iav kom paub seb puas muaj kab mob, kev kis kab mob, lossis mob qog noj ntshav.
• Kev Siv Duab Xam Xaj Sib Nqus (MRI): Siv tau los kuaj xyuas cov qog nqaij hlav, xws li melanoma, hauv lub hlwb lossis tus txha caj qaum.
• Positron Emission Tomography (PET) scan: Qhov no pab saib seb tus mob qog noj ntshav puas tau kis mus rau cov qog ntshav lossis lwm qhov ntawm lub cev uas nyob deb ntawm qhov chaw qub.

Cov kev kho mob rau cov kab mob ntawm lub dermis yog dab tsi?

Nov yog qee qhov kev kho mob rau cov mob uas cuam tshuam rau dermis:

• Cov tshuaj Corticosteroids: Cov no yog ib hom tshuaj uas txo qhov o thiab kev puas tsuaj ntawm cov nqaij. Lawv tuaj yeem muab ua cov tshuaj pleev lossis cov tshuaj ntsiav.
• Kev txiav tawv nqaij: Cov txheej txheem no yog siv los kho cov tawv nqaij uas puas lawm uas tsis tuaj yeem kho nws tus kheej. Nws tuaj yeem pab cov neeg uas muaj kev puas tsuaj loj heev ntawm daim tawv nqaij los ntawm tej yam xws li kub hnyiab, kis kab mob hnyav, thiab mob qog.
• Cov khoom siv hloov tawv nqaij: Cov no suav nrog allografts, xenografts, lossis tawv nqaij tsim los ntawm cov molecule thiab polymers uas tsis yog biological. Cov no muaj txiaj ntsig zoo rau cov neeg uas muaj cov qhov txhab tob, kub hnyiab, thiab kab mob ntawm daim tawv nqaij.

Tej yam yooj yim uas peb ua tau kom cov tawv nqaij noj qab nyob zoo: Peb ua tau dab tsi!

Tam sim no koj paub tias lub dermis muaj nqis npaum li cas. Yog li peb yuav tsum ua haujlwm me ntsis kom nws noj qab nyob zoo. Nov yog qee yam yooj yim uas koj tuaj yeem ua tau:

• Tsim kom muaj tus cwj pwm zoo rau kev saib xyuas daim tawv nqaij:
• Haus tsawg kawg yog 8 khob dej ib hnub. Nws yog ib qho tseem ceeb heev uas yuav tsum tau muab dej rau lub cev los ntawm sab hauv.
• Siv cov xab npum mos mos thiab cov tshuaj ntxuav uas tsis ua rau daim tawv nqaij puas tsuaj.
• Tom qab da dej thiab thaum twg xav tauSiv tshuaj pleev kom noo noo .
• Ua raws li koj tus kws kho mob cov lus qhia.
• Kho cov kev raug mob kom zoo:
• Txawm tias nws yog qhov txhab me me los xij, ntxuav nws nrog dej huv thiab xab npum kom tiv thaiv kev kis kab mob.
• Tom qab ntawd, muab me ntsis roj petroleum jelly (Vaseline™) los yog tshuaj pleev tawv nqaij (Aquaphor™) rau ntawm qhov txhab nrog ib lub paj rwb thiab npog nws nrog ib daim ntaub qhwv huv. Qhov no yuav pab tiv thaiv cov hmoov av thiab cov kab mob kom tsis txhob nkag mus.
• Tiv thaiv koj tus kheej ntawm kev puas tsuaj los ntawm lub hnub:
• Kev raug tshav ntuj ntev ua rau daim tawv nqaij puas tsuaj . Qhov no kuj cuam tshuam rau daim tawv nqaij dermis, ua rau daim tawv nqaij laus sai dua, thiab ua rau muaj kev pheej hmoo ntawm mob qog nqaij hlav.
• Thaum tawm mus rau hauv lub hnub, siv cov tshuaj pleev thaiv hnub uas muaj tsawg kawg SPF 30 .
• Hnav khaub ncaws uas npog daim tawv nqaij ntau li ntau tau (xws li khaub ncaws tes ntev thiab kaus mom).

Nco ntsoov tias, koj daim tawv nqaij dermis zoo li lub plawv ntawm koj daim tawv nqaij. Txawm tias yog ib qho kev siv zog me me los ua kom nws noj qab nyob zoo tuaj yeem muaj feem cuam tshuam loj rau koj txoj kev noj qab haus huv tag nrho!

Yog li ntawd, txawm hais tias daim tawv nqaij dermis yog txheej nruab nrab ntawm peb daim tawv nqaij, qhov kev pabcuam uas nws ua tsis yog qhov tsis tseem ceeb, puas yog? Txij li kev tiv thaiv peb ntawm lub ntiaj teb sab nraud, mus rau kev muab kev xav rau peb, mus rau kev tswj peb lub cev kub los ntawm kev tawm hws, daim tawv nqaij dermis no pab peb. Yog li ntawd, nws yog peb lub luag haujlwm los saib xyuas nws. Peb tuaj yeem ua kom peb daim tawv nqaij dermis noj qab haus huv los ntawm kev ua tej yam yooj yim xws li haus dej ntau, kho cov qhov txhab kom zoo, thiab tiv thaiv peb tus kheej ntawm lub hnub.

Tawv nqaij, dermis, epidermis, txheej tawv nqaij, collagen, elastin, kev noj qab haus huv ntawm daim tawv nqaij, dermatology