He aha ka na epidermis? Ka 'ole o ka epidermis

Ka mawaho kino uhi mai i ka 'ano luna' 'ole. Ka ili o ka hui, e he mau papa. Ua hanaʻia i ka helu o ka nui oihana: ka hoonohonoho hou, wela'ōnaehana, mea loaʻa, aiiay. He nui nā kanaka kahaha no mea na epidermis, akā, e hoopoina no ka lua o ke keʻena o kaʻili - na dermis.

Ka 'ole o ka pā aloha kino

Skin he o elua papa - na epidermis a me dermis. Ka luna epithelial, ahu iho ua kaawale mai ka lalo wavy haoʻa. Kona helehelena ua kena ae la ma ke alo ma ka ili o ka ili o kūikawā outgrowths - papillae. Ka luna, ahu iho o kona i lalo-keratinized stratified epithelium. Ua loaʻa i na moku ke koko, a ua lako ka mana me ia, mai ka dermis wale.

E hana i ka mea e ia i epidermis, loaʻa mai kahi ia mea, nui ka poe i hoomaka, e lawe i ka hoihoi i loko o kona 'ole. Ua ninoieo ec keena, okoa i ka palapala a me ka 'ole. Ka mea, noonoo i kekahi pae o ko lākou mau ola. Mānoanoa o ka epidermis, ke kaumaha ma muli kona wahi hiki e mai 0,07 mm o ia 1.4 mm o. Ke thickest, ahu iho nei ma luna o nā kapuwaʻi o nā wāwae, poho o ka lima. A loa lahilahi ili (kona papaholo, ahu iho) mea i loko o ka pubic wahi, ma ka forearms, pepeiao a me ka abdomen.

Ka 'ole o ke keena aloha keratinized

Ke epidermis ninoieo o elima kanaka papa. Kona papa kuhikuhiE ke keʻena ua kapaia he keratinocyte. Akā, me ka 'ole o ka epidermis Ua oi huikau ma mua o ka mea, e like me ka mea ma mua kilohi. Poe akamai i kuhikuhi i ua papa:

• basal (germinative);
• prickly;
• granular;
• maikaʻi loa;
• horny.

Kēlā me kēia no ia hanaʻia i kekahi papa, a i kona iho 'ole.

He nui ka ike i kaʻili aeee i loko o kekahi mau moku'āina o ka hou. Nā papa ho'āʻo nā'ōlelo keʻano o ka hanaʻana, ka hoʻohanaʻana, a me ka keratinization desquamation. Ke kaumaha ma muli o ka mau wahi o ke kino o ka piha epidermal IeAIIeXIAaIEN kaʻina e lawe 20 a hiki i 30 lā.

stratum corneum

Ka luna o na epidermis ua haku o aeee i lawa ka'ō'ō ihe i kekahi i kekahi. Aia i loko o ka stratum corneum eiiiiiaiou i epidermal ili ke'ākeʻakeʻa mai - ka mea, i kapaʻia corneocytes. Mau ili aeee i ka liu o ka halepaahao organelles, a ua piha i keratin.

No ka mea, o keia mau horny, ahu iho eiiiiiaiou e hoomalu ia ma lalo o'aʻaʻa mai ma paʻi poino, wela likeʻole, ka maloʻoʻana a me ka anal o koʻohune. Horny unahi i maheleia i mau ano. Ka mea hiki e wehe a anuanu hoopiha o keratin fibrils. Ma ka lua o ka ili i ka ia. A mua aia kokoke i ka granular, ahu iho. I kā lākou 'ole, hiki ke loaʻa i ka i koe iho o ka mua ke aupuni' loko aeea organelles. Mau unahi i pinepine kapa T-keena.

Kēia luna papa o na epidermis o ka cutaneous ke'ākeʻakeʻa mai, a oia no kekahi mau papa no kona make koke keena, a i impregnated me lipids. Incidentally, i kēia mau waiwai i walaʻauʻana kiai ona mau i loko o kaʻili.

ka lā'ī, ahu iho

Kēia hapa o ka epidermis ua e mau loa ana me i olelo ia. Ua ua i kapa eleidinovym, ahu iho. Inā ka mea, ua ole 'akomi i, laila, ka mea nana e like me ka wiwi, malamalama, ao alohilohi a me ka homogeneous loloa. Ahu iho la ua kapa wale no o ko lākou mau helehelena. Kona 'Oponopono mea he Nine Inch kapaia eleidin. He He huahana-iki iloko no hou keratinization keena. Hoike ia, i hookuu wale nō i loko o ka ili o ke poho a me na puupuu wawae. Ua ninoieo o ka nukelea-noa flattened keena.

granular, ahu iho

A o ka poe e hana ana me ka mea i keia epidermis, loaʻa mai kahi ia mea, a me ka hoomanao kona mānoanoa, maopopo i kela a me keia o kona eiiiiiaiou mea negligible. Pela, ke particulate, ahu iho haku ana o ka wale 1-2 keena lalani i loko o ia mau wahi, kahi i lahilahi epidermis. Akā, e hiki no hoi he poe 10 lālani o aeee i loko o ia mau wahi, kahi i ka ili o oi anuanu. Ka mea, i daimana-hoʻokino, elongated, elongated a paa i kaomi aku i kekahi i kekahi. Ke aupuni 'ma keia, ahu iho keena pau ka liu o kā lākou hana, e puunaue. Ma ka cytoplasm loaʻa nō nāʻano o nā pellets: Lamellar a me eleidin. Ka mea, i aia ai i ka lōʻihi (axis) o kēlā me kēia daimana-hoʻokino keena hoʻoneʻe laua Groove paha scallops.

spiny keena

Nānā 'ole o ka wahi āpana o ka ili, i aku la, ahu iho ninoieo o nā lālani 5-10. Loaa ia i loko o ka mea, na keena i loko o ka palapala o polygons. Nana aku la au ma lalo o ka microscope, e hiki ke ike ole wale i ka epidermal papa o kaʻili, akā, no hoi, e ike i ke keena ia lakou iho, i ka wahi paiki loloa o ka makahiki ma waena o lākou, a me ka keʻano o ka hanaʻana maalea e hoohihia ma ia. Mahalo i ko lakou alo, ahu iho i ka inoa o prickly.

Keratinocytes i pili i loko o keia hapa o ka epidermal desmosomes. Ka mea, i kekahiʻano luna '' ole: eʻikeʻia me papa elua, a ma waena ia i interleaved ma waena o ka cathode 4 a me 3-aniani moakaka huina'ine-anuanu, ahu iho. Ua desmosomes kākoʻo kūloko ma ke kelepona hele 'ole, ka mea, ua ikaika intercellular guarantor hui. Ka mea, i malama like me ka ka piʻiʻana wahi no tonofilaments. It E ke kaulana i ua kuni ihola ia i ke kanaka epidermis no laila, i ka luna haʻawina spinous, ahu iho emi ka helu o desmosomes.

ke kelepona hele 'ole reminiscent o na eiiiiiaiou o ka basal oihana. Akā, i ka mea ia manawa, uaʻokoʻa ka mea. Spiny aeee ua hoʻopili pū me ka nui helu o desmosomes a laulau tonofilaments ia pūhaka.

basal keena

Kēia ahu iho o ka loa mamao mai ka ili 'ilikai. Akā, e kaumaha ana i ka manawa kūpono e maopopo loa ana i na epidermis. Ua ka hope, ahu iho ma luna o ka basal papa, i oʻokeʻa loa ia mai nā nā'aʻaʻa. Na keena maloko hooponopono i loko o ka hoʻokahi lālani. Ahu iho la i ka mea, nāna i hana, i kapaia germinal. Inā loaʻa kekahi mauʻano o ke keena. Aia nā keratinocytes, melanocytes, lymphocytes, basophils'aʻaʻa. I hookomoia ma ka, ahu iho Greenstein a me Merkel keena.

Keratinocytes i loko o kēia ahu iho la nana e like nā paukūʻolokaʻa i ku hoʻopapakū. Ka mea,ʻike mau ano: i lalo a me ka zubchastoy ili honua. Ua puunaueia ka mea mua kamalii, ma muli o kā lākou i aeea loli ia lŘlŘ. Ka hope lawelawe 'ana me ke kuleana pili i papaʻa. Akā, ka mea, e hoomaka ana e kaʻana like i loko o kekahi poino i ka ili.

Piha maopopo a maopopo i ka 'ole o ka' ole o ka epidermis hiki ia, ina oe i ike i ka 'ole o ka eiiiiiaiou basophilic, ahu iho ka iki okoa. Eia hou kekahi a me organelles a me nuclei, a kamaʻilioʻana i ka i pau i ka'ē aʻe keena, ka mea i ho'ākāka 'ia i' ole - tonofilameny. Aia Ua hoi he kūikawā inclusion, kapa melanin granules.

Mākou E hoi aku nei au i na melanocytes - kūikawā aeee mea hiki ke melanin. Kēia waiwai a pau i malama i kaʻino wale i hopena o ultraviolet pāhawewe. Ke basal, ahu iho nei no ka mea o 10-25% o na keena. Ma helehelena ka mea, e hoohalike ai i ka moana urchin a me ke aupuni 'ma waena o keratinocytes. E like me kona kaʻina loa, ka mea i hiki hoi ke transporting melanin loko keena ma phagocytosis.

Ike keia 'ike a pau e pili ana i ka' ole, 'ano o ka papakaukau, ahu iho o kaʻili, e hiki noonoo ai i na mea o ka epidermis, ke ala ia nana a me ka mea e pono ai.