![Dab tsi ua rau cov ntshav pom hauv qab daim tawv nqaij ntawm caj npab? Dab tsi ua rau cov ntshav pom hauv qab daim tawv nqaij ntawm caj npab?](https://i.answers-medical.com/preview/medical-health/14084716-what-causes-blood-spots-under-skin-on-arms-j.webp)
Video: Dab tsi ua rau cov ntshav pom hauv qab daim tawv nqaij ntawm caj npab?
![Video: Dab tsi ua rau cov ntshav pom hauv qab daim tawv nqaij ntawm caj npab? Video: Dab tsi ua rau cov ntshav pom hauv qab daim tawv nqaij ntawm caj npab?](https://i.ytimg.com/vi/HlDnBGJM6uA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Purpura tshwm sim thaum me me ntshav cov hlab ntsha tawg, ua ntshav mus laug hauv qab cov tawv nqaij . Purpura me ntsis feem ntau benign, tab sis tej zaum yuav qhia tau tias muaj mob hnyav dua, xws li a ntshav Qee zaum, qib platelet qis tuaj yeem ua tau ua ntau bruisingand los ntshav.
Yog li ntawd, dab tsi ua rau me ntsis liab dots ntawm daim tawv nqaij?
Liab cov chaw nyob ntawm tawv nqaij uas tshwm sim ib leeg tuaj yeem yog cov qog me me ntawm cov hlab ntshav, hu ua ahemangioma. Me me , pinpoint hemorrhages tuaj yeem pom hauv tawv nqaij thiab raug xa mus ua petechiae. Los ntshav tsis meej kuj ua rau muaj cov ntshav liab liab cov chaw uas loj dua, hu ua purpura.
Tsis tas li, puas tuaj yeem ua rau muaj pob liab liab ntawm daim tawv nqaij? Kev nyuab siab tau ua rau muaj kev tawm tsam ntawm khaus khaus uas tau ua a kev nyuaj siab pob Hives raug kaw, liab - xim me ntsis los yog welts. Lawv txawv nyob rau hauv sizeand tau tshwm sim nyob qhov twg ntawm lub lub cev.
Ntxiv mus, dab tsi ua rau petechiae ntawm caj npab?
Ua ntawm petechiae . Petechiae yog tsim thaum cov hlab ntsha me me hu ua capillaries tawg. Thaum twg cov hlab ntsha tawg, ntshav los rau hauv koj cov tawv nqaij. Kev kis tus kab mob thiab cov tshuaj tiv thaiv tshuaj yog ob qho tib si ua ntawm petechiae.
Vim li cas kuv thiaj li tau txais pob ntawm kuv txhais tes?
A. Cov me me pob yog tshwm sim los ntawm keratosispilaris, ib qho mob ntawm daim tawv nqaij uas feem ntau cuam tshuam rau caj npab thiab ncej puab (txawm tias qee zaum nws tshwm sim ntawm lub pob tw thiab lub ntsej muag, ib yam nkaus). Nws yog tshwm sim los ntawm kev tsim ntawm cov proteinkeratin, uas tuaj yeem ntsaws cov plaub hau follicle, ua rau muaj kev puas tsuaj.
Pom zoo:
Dab tsi yog txheej txheej sab saum toj ntawm daim tawv nqaij nyob ib sab ntawm daim tawv nqaij?
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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 ntawm cov leeg ntawm lub xub pwg nyom thiab sab sauv txav ntawm caj npab thiab caj npab?
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Cov leeg uas txav lub xub pwg thiab caj npab suav nrog trapezius thiab serratus anterior. Lub pectoralis loj, latissimus dorsi, deltoid, thiab rotator cuff nqaij txuas mus rau lub humerus thiab txav caj npab. 20 lossis ntau cov leeg uas ua rau lub dab teg feem ntau, tes, thiab ntiv tes txav tau nyob ntawm lub hauv pliaj
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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
Hom ntaub so ntswg twg ua rau daim tawv nqaij ntawm daim tawv nqaij?
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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
Dab tsi yog lub npe ntawm cov hlab ntshav uas nqa ntshav ntshav los ntawm lub taub hau caj dab thiab caj npab mus rau sab xis atrium?
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Superior vena cava