Kwararrun mata, wanda aka fi sani da suna mammary gland, suna tsaye a gaban jiki. Sun shimfiɗa daga kirji bango tsakanin ƙunci da wuyansa. Tun da gland shine kwaya ko wani ɓangare na jikin da zai iya ƙirƙirar abu ko mugunta, ƙirjin suna iya samar da nono madara . Rashin iya yin nono madara zai taimaka wa mata su ba da abinci da abinci ga 'ya'yansu ta wurin nono .
Anatomy
Ko da yake girman da siffar ƙirji na iya bambanta da yawa daga mace zuwa mace, duk ƙirjinta suna cikin sassa guda. Ga jerin matakan waje da na ciki wanda ya hada da jikin jikin nono.
Sassan waje
Skin: Cikin fata suna rufe fata. Fata da ke kewaye da ƙirjin yana dauke da isola, da nono, da launi na Montgomery.
Areola: The isola ne madauwari ko tudu a tsakiya na ƙirjin da yake launin duhu fiye da fata kewaye. An yi imani da cewa isola ya fi duhu a cikin launi domin jariri zai iya samun sauƙin gano shi don saukewa kuma ya fara shayarwa.
Kan nono: Kan nono yana fitowa waje daga tsakiyar isola. Akwai ƙananan ƙananan buɗewa a cikin nono wanda ya ba da damar nono nono ya fito daga cikin ƙirjin da cikin jaririn.
Montgomery Glands: A waje da kan nono da kuma isola ne ƙananan tasowa, ƙuƙwarar ƙwayoyi.
Wadannan glanders suna haifar da laushi wanda ke wanke, tsaftacewa, kuma yana kare nono da kuma doola a lokacin nono. Har ila yau an yi imanin cewa tudun Montgomery , ko glanders, suna samar da ƙanshin da zai taimaki jaririn ya sami ƙuƙwalwar ƙyalle da ƙuƙwalwa.
Ƙananan Hoto
Glandular Tissue: Glandular nama a ƙirjin shine nama madara.
Wannan shi ne ɓangaren ƙirjin da ke samar da nono madara.
Milk Ducts: Duck Milk ne tsarin sufuri don nono nono. Suna ɗaukar madara daga inda aka sanya shi cikin jikin glandular, ta cikin nono, kuma daga cikin nono zuwa jariri.
Ligaments: Hannun Cooper sune nau'i na fibrous nama wanda ke samar da nono tare da tsari. Tun da babu tsokoki da ke cikin ƙirji, halayen suna ba da ƙirjinta siffar.
Magunguna: Akwai tsarin hadaddun jijiyoyi dake cikin ƙirjin. Wadannan jijiyoyi sun amsa da shan waraka a ƙirjin kuma suna haifar da sakin hormones oxytocin da prolactin . Oxytocin da prolactin suna da alhakin sauye-sauye da kuma ci gaba da samar da madara nono.
Fatty Tissue: Dabba mai laushi, ko nama mai laushi, shine abin da ke nuna girman ƙirjin. Mafi yawan kitsen da ke cikin ƙirjin, mafi girman ƙirjin zai kasance. Duk da haka, yawan kitsen ba shi da wani abu da ya yi da adadin nama mai laushi a cikin nono. Saboda haka, ƙwayar nono bai ƙayyade adadin nono wanda aka yi ba.
Sources:
Cibiyar Harkokin Ilimin Harkokin Ilmin {asar Amirka. Sabon Gidan Jagora Ta Hanyar Yara. Bantam Books. New York. 2011.
Doucet, S., Soussignan, R., Sagot, P., & Schaal, B. Tsarin gwaninta (Montgomery's) glands daga lactating mata ya haifar da zaɓin zaɓi, ba tare da wani dalili ba a cikin jerin. PLoS Daya. 2009; 4 (10): e7579.
Lawrence, Ruth A., MD, Lawrence, Robert M., MD. Yarayar Yarinyar Jagora Ga Kwararren Kwararren Kwararren Kwararru. Mosby. 2011.
Riordan, J., Wambach, K. Tsunyarwa da Labaran Dan Adam Hudu na Hudu. Jones da Bartlett Learning. 2010.