Lacrimal ruwa - abin da shi ne da kuma abin da shi ne?

Mutumin zamani sani mai yawa game da aiki na jikinsa. Amma yana da daraja tuna cewa akwai kananan gabobin da kuma gland fãce babbar m tsarin. Suna located a ko'ina cikin jiki da kuma taka muhimmiyar rawa a cikin harkokin kiwon lafiya na jiki. An misali ne da hawaye ducts, da wanda jihar na aikin dogara a kan ido.

Mene ne baƙin ƙarfe?

Gland shine yake kira da jiki, wanda aka hada da secretory Kwayoyin. Ana amfani domin samar da takamaiman abubuwa na daban-daban sinadaran halitta. Iron iya fitarwa generated sirrin ko zahiri a ciki yanayi na wani kwayoyin. A matsayin misali, waɗannan jikuna zai iya sa mutum lacrimal tashoshi, endocrine gland, pancreas.

Gawan sassaƙa fitar da wani asiri, kira exocrine. Gland, samar da wani m hada a cikin jini, ko lymphatic tsarin, da ake kira endocrine.

Lacrimal gland mutum. wuri

Search lacrimal gland shine yake ya zama kawai a kasa da sama-m gefen ido soket. Musamman ga su, kafa lacrimal fossa a cikin wani m sako a cikin frontal kashi. Don baƙin ƙarfe ba ya motsa, akwai fibrous makada, wato, da goyon bayan tsokoki na ido da kuma eyelids, bugu da žari suka kiyaye m nama. A kan talakawan, ya fara tasawa, waɗannan jikuna da girma 10h20h5 mm. Tã ba fiye da daya baƙin ƙarfe 0.8 g

tsarin

A cewar da tsarin lacrimal gland shine yake alveolar-tubular. Ya kunshi biyu unequal lobes:

• orbital, wanda aka located a saman da girma a bit more.
• palpebral, da ake kira da ƙananan lobes.

Tsakanin hannun jari, wanda aka samar da lacrimal ruwa, shi ne fascia tsoka alhakin dagawa da babba fatar ido. Daga kowane daga cikinsu ke 5-6 ducts. A hankali, su ake hada a cikin daya manyan kwarara.

Ƙananan ɓangare na gland shine yake yana da wata ƙõfa. Ta hanyar su ne arteries da jijiyoyinmu cewa samar da jiki da jini, Lymph tasoshin da babban bututu da ciwon daji, a cikin abin da duk kananan hawaye ducts converge. A lumen na bututu ne bude a cikin conjunctiva. Its fitarwa ne a kan m ɓangare, game da 5 mm daga outermost aya daga cikin manya fatar ido. Wani lokaci akwai karin sallama na excretory fili. Wadannan kananan ducts kuma kawo karshen sama a kan rufin conjunctiva. Wasu hawaye ruwa tashoshi nuna a cikin boko rabo daga conjunctiva, wasu - a cikin matsanancin canthus. Lokacin da mutum ya rufe idonsa, Hawaye suna gudãna saukar da baya gefen eyelids, inda da hawaye rafi, da kuma ta hanyar tearful tabkuna a cikin kananan ramuka a kan gefuna da eyelids.

A babba bututu, tafiya kusa da ido soket kashi rami, da ake kira lacrimal jakar kwai. Its ganuwar ba Yunƙurin ga mutane da yawa hanyoyi, ta hanyar da gudana cikin hawaye ruwa.

Ƙananan ɓangare na lacrimal gland shine yake ta'allaka a subaponevroticheskom rabo a karkashin ƙananan fatar ido. Ya kunshi yawa a haɗa lobules. Suna yawanci 25-30 guda. All zuwa daga ducts na lobules aka nuna a babban gland shine yake.

A kashi ta hanyar da matsanancin bango a hanci kogo wuce kusa nasolacrimal bututu. Wannan slezovyvodyaschy tashar yana buɗewa a cikin hanci rami na musamman Ramin a cikin kasa daga cikin kwatami. A tsaguwa bawul aka rufe daga mucosal folds.

ayyuka

A lacrimal gland samar da wani musamman ruwa asirce cewa yana da abubuwa da yawa:

• kau na waje jikinsu daga ido da kuma datti.
• kariya daga bushewa surface.
• bayarwa na gina jiki ga cornea da conjunctiva.
• refraction da haske.
• lubrication domin motsi na karni.
• antibacterial kariya.

Mene ne wani hawaye?

Lacrimal ruwa - bayyananne transudate cewa accumulates a serous (gina jiki) cavities. A sunadarai abun da ke ciki na hawaye lura zo daidai da abun da ke ciki na jini. Duk da haka, da potassium maida hankali ne mafi girma da kuma sunadarin flourine ciki da ƙananan Organic acid. A sunadarai abun da ke ciki na hawaye ne m zuwa jihar na jiki da kuma ne kullum canja.

Dalili na hawaye ruwa - ruwa. Yana narkar da gishiri (1,5% NaCl), albumin (0.5%), gamsai. A binciken da shi farfado da dan kadan alkaline dauki. Hawaye na iya zama reflex kuma wani tunanin. A cikin farko idan, jiki yana amfani da su ware wani hawaye don moisten kuma tsaftace mai ido. A karo na biyu idan - to taimaka tashin hankali da kuma tashin hankali. Secretory sel da lacrimal gland samar da wani karamin adadin a psychotropic abu, iya kawo taimako a stressful yanayi. A wani jihar yanke ƙauna a hawaye bayyana danniya hormones da prolactin leytsinenkefalin. Happy hawaye rage adadin adrenaline, wanda qara da cika fuska a lokacin da overexcitation. Bugu da ƙari, secretory Kwayoyin bayar a cikin hawaye m gaban immunoglobulins da yawa sunadarai, amino acid, enzyme jamiái, urea da sauran sinadaran abubuwa.

Saboda yanzu kana wasu ra'ayin abin da hawaye ruwa, ka fahimta - ikon kuka da matukar muhimmanci ga dan Adam. Tears - ba wai kawai wata alama daga high wani tunanin bango, amma kuma mataimakin na idanunmu, ci gaba da su da lafiya.