Cheebtsam ntawm daim tawv nqaij

Zoo Siab

• Txheej txheem cej luam

Ua si yees duab kev noj qab haus huv: //medlineplus.gov/ency/videos/mov/200098_eng.mp4 Dab tsi yog qhov no? Ua yeeb yaj kiab saib kev noj qab haus huv nrog suab piav qhia: //medlineplus.gov/ency/videos/mov/200098_eng_ad.mp4

Txheej txheem cej luam

Qhov nruab nrab ntawm cov neeg laus muaj li 6 phaus ntawm daim tawv nqaij npog 18 square feet, ua rau daim tawv nqaij lub cev ua haujlwm ntau tshaj plaws. Cia saib seb daim tawv muab tso ua ke li cas. Daim tawv nqaij muaj peb txheej. Txheej txheej sab saum toj yog daim tawv nqaij (epidermis). Nws tiv thaiv lwm txheej ntawm sab nraud. Nws muaj cov hlwb ua keratin, uas tiv thaiv dej thiab ua kom tawv nqaij. Cov kabmob epidermis tseem muaj hlwb nrog melanin, cov xim tsaus nti uas muab tawv nqaij ua xim. Lwm lub hlwb ntawm daim txiag nqaij tawv tso cai rau peb kom kov thiab muab kev tiv thaiv tawm tsam kev tawm tsam zoo li cov kab mob thiab lwm yam kab mob.

Hauv qab txheej yog qhov hypodermis. Nws muaj cov roj ua haujlwm, lossis daim ntaub adipose, uas ua rau nkag hauv lub cev thiab pab txuag hluav taws kub.Yuav siv cov epidermis thiab hypodermis yog lub dermis. Nws muaj cov hlwb uas muab cov tawv nqaij ua kom muaj zog, txhawb nqa thiab yoog raws li peb lub hnub nyoog, cov hlwb hauv lub dermis poob lawv lub zog thiab kev yoog raws, ua rau tawv nqaij plam nws cov hluas lub zog.

Cov dermis muaj qhov nkag siab zoo tshaj plaws uas tso cai rau lub cev kom tau txais kev tsa los ntawm sab nraud thiab hnov ​​qhov siab, qhov mob, thiab qhov kub.Qhov network ntawm cov hlab ntsha muab cov tawv nqaij nrog cov as-ham, thiab tshem cov khoom pov tseg.

Cov qog sebaceous ua cov roj uas ua kom daim tawv nqaij kom qhuav. Cov roj los ntawm cov qog sebaceous kuj pab ua kom cov plaub hau muag thiab tua cov kab mob hauv cov pores ntawm daim tawv nqaij.

Cov qog ua npog tag nrho lub cev, tshwj tsis yog rau xib teg ntawm txhais tes thiab lub hauv taw ntawm taw.

• Daim tawv nqaij mob