Göz kapağı

göz kapağı
Latince isimpalpebrae
Sistemgöz
Arterlacrimal artery, medial palpebral arteries
Tanımlayıcılar
JSTOReyelids
Microsoft Academic2909579419 2781302119, 2909579419
MeSHD005143
TA115 114, 115
FMA54437

Göz kapağı, gözü kapatan ve koruyan ince bir deri kıvrımdır.[1] Göz kapağının temel işlevi, korneanın sürekli nemli olmasını sağlamak için göz yüzeyindeki gözyaşı ve diğer salgıları düzenli olarak göze yaymaktır. Uyurken gözlerinin kurumasını da önleyen göz kapağı, göz kırpma refleksi ile gözü yabancı cisimlerden korur. Levator palpebra superioris kası, göz kapağını geri çekerek korneayı dışarıya maruz bırakır ve görüşü sağlar. Bu hareket istemli ya da istemsiz gerçekleşebilir.Tıp literatüründe "palpebral" ve "blefaral" göz kapakları ile ilgili anlamında kullanılır.

Epikantal katlantıya sahip bir Korelinin sol gözü

İnsan üst göz kapağının görünümü genellikle farklı popülasyonlar arasında değişkenlik gösterir. Gözün iç köşesini kaplayan epikantal katlantının yaygınlığı Doğu Asya ve Güneydoğu Asya popülasyonlarında %90'a kadar çıkabilir ve diğerler nüfus gruplarında da farklı derece ve oranlarda bulunur.[2]

İnsan göz kapağında, göz kapağının tozdan ve yabancı döküntülerden ve terden korunmasını artırmaya yarayan göz kapağı kenarı boyunca bir dizi kirpik bulunur. Göz kapakları insan dışı diğer hayvanlarda da bulunur. Bazı hayvanlar üçüncü göz kapağı olarak da adlandırılan niktitatif membrana sahip olabilir.

Ayrıca bakınız

Kaynakça

  1. ^ Goldman, Lee (2012). Goldman's Cecil Medicine (24. bas.). Philadelphia: Elsevier Saunders. ss. 2426. ISBN 1437727883. 
  2. ^ Lee, Y., Lee, E. and, Park, W.J. (2000) Anchor epicanthoplasty combined with outfold type double eyelidplasty for Asians: do we have to make an additional scar to correct the Asian epicanthal fold? Plast. Reconstr. Surg. 105:1872–1880

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