Tus qauv ntawm daim tawv nqaij

Cov tawv nqaij npog tib neeg lub cev los ntawm sab nraum, nws muab kev tiv thaiv ntawm tag nrho cov hauv nruab nrog cev los ntawm lwm influences (kev sib txhuam, siab, tej yam, kev sib tawg). Tsis tas li ntawd, cover tiv thaiv allergic ntawm ntau yam kab mob nyob rau hauv tus kab mob. Nws thickness nyob rau hauv cheeb tsam sib txawv mas nws txawv ntawm 0.5 mus rau 4 millimeters approximate luj ntawm 3 kg.

daim tawv nqaij qauv tso cai rau nws mus koom nyob rau hauv cov kev pauv, excretory thiab tiv thaiv dab, raws li tau zoo raws li lub cev thermoregulation (kub kev cai). Thoob plaws hauv lub hnub los ntawm lub hau sawv kwv yees li 500 milliliters ntawm cov dej. Qhov no sawv cev 1% ntawm cov tag nrho lub cev. Daim tawv nqaij qauv yuav tshem cov khoom uas muaj protein ntau metabolism thiab ntau yam ntsev. Cover absorbs oxygen, tso cov pa roj carbon dioxide. Mineral, dej thiab nkev pauv cover by siv yog tsuas yog me ntsis ua tsis tau zoo metabolic tus nqi nyob rau hauv cov nqaij thiab daim siab.

tib neeg daim tawv nqaij qauv enables lub tswb muaj nuj nqi - nws yog muab cov txheej txheem ntawm nyob rau hauv tag nrho nws cov khaubncaws sab nraud povtseg rhiab receptors nyob rau hauv loj nyiaj. Nrog kev pab los ntawm cov neeg no yuav tau perceive mob, siab, tshav kub kub, kov. daim tawv nqaij qauv pub nyob rau ntawm cais chaw nyob rau hauv Q1. cm. mus rau kaum ob ntawm txias, mob ntawm ob puas, ob thiab nees nkaum tsib thermal siab rhiab txoj. Nws yuav tsum tau muab sau tseg tias muaj cov rhiab heev ua ib qho tseem ceeb ua hauj lwm rau kev sis raug zoo ntawm tus kab mob thiab lwm cov ib puag ncig, tiv thaiv kom txhob kub nyhiab, wounds, frostbite.

Tawv. Qauv.

Lub cev tau hauj lwm ntawm lub cev yog ensured los ntawm mus tas li tej yam kev mob ntawm cov hav zoov. Lwm yam yog heev volatile thiab muaj ib tug mus tas tej yam rau ib tug neeg. Kom ntseeg tau thiab tswj kev ncaj ncees ntawm lub tag nrho lub cev lies nyob rau hauv txheej cev cover. Tus qauv ntawm daim tawv nqaij yog heev yooj yim. Qhov no lub cev muaj peb khaubncaws sab nraud povtseg.

Thaum lub saum toj yog lub epidermis. Nws muaj ib tug tuab ntawm los ntawm 0.03 mus 1.5 millimeters los yog ntau tshaj (e.g., nyob rau hauv xib teg los yog txhais qab xib). Nws, nyob rau hauv lem, muaj tsib khaubncaws sab nraud povtseg. Lub nto txheej (stratum) sawv cev rau tuag keratinized hlwb, nruj nreem nyob ib sab mus rau txhua lwm yam. Lossi yuav mus nyob rau lawv sib cais thiab hloov los ntawm tshiab hlwb. Lub epidermis tiv thaiv zog. Nws yog nws leej twg tiv thaiv tus ntawm lwm yam nyob rau hauv lub cev. Vim lawv cov qauv, cov epidermis muaj elasticity, lub zog thiab elasticity. Nyob rau hauv tas li ntawd, nws yog tau sai sai rov qab nrog me kev raug mob. Txhua lub tsib khaubncaws sab nraud povtseg zus mus rau hauv ib leeg, thiaj li muaj ib tug tsis tu ncua hloov tshiab. Nkaus tshiab hlwb rau 26-28 hnub. Lawv tag nrho cov kabmob tsuas tawv nqaij hlwb yuav tau muab thiab loj hlob nrog xws li ceev.

Cov tom ntej no txheej yog cov txheej polkrova - dermis - sawv cev intertwined fibers. Lub ntsiab los sawv daws yuav collagen thiab elastin (collagen thiab elastin yog lub loj ntxwv cov nqaijrog daim tawv nqaij). Vim lawv cover yog resilient, tau los nws yeej zoo tom qab ncab. Nyob rau hauv lub dermis yog ob khaubncaws sab nraud povtseg. Lymph thiab cov hlab ntsha, nqaij, qab haus huv, sebaceous thiab hws qog, cov plaub hau dhau los ntawm lub sib sib zog nqus txheej.

Nyob rau hauv lub dermis yog lub subcutaneous cov ntaub so ntswg fatty (hypodermis). Cov txheej no yog ib yam ntawm cov "cushion". Nws thickness txawv, nyob ntawm seb lub cev feem. Qhov no yog vim lub roundness ntawm lub cev daim. Hypodermis tiv thaiv lub cev los ntawm hypothermia, kev raug mob, lwm cov stimuli, ib tug cia txheej, qhov chaw uas tso roj khw muag khoom noj Consumables kab mob, cev xeeb tub, kev tshaib kev nqhis.

Zoo txhua txhua cheeb tsam ntawm daim tawv nqaij nyob hws qog. Feem ntau ntawm lawv nyob rau hauv lub khoom ntawm lub toes thiab ob txhais tes, lub qab xib taws, xib teg, inguinal thiab axillary folds. Cov qog yog muab kev koom tes nyob rau hauv lub excretory muaj nuj nqi.

Sebum - Secret secreted los ntawm cov sebaceous qog. Nws ua rau ntawm daim tawv nqaij supple, muag nws.