لوحاء أنفية

لوحاء أنفية
الاسم العلمي
placoda nasalis, placoda olfactoria
تفاصيل
مصطلحات جنينية E5.3.0.0.0.0.8  تعديل قيمة خاصية (P1693) في ويكي بيانات
UBERON ID 0003050[1]  تعديل قيمة خاصية (P1554) في ويكي بيانات
تعديل مصدري - تعديل  طالع توثيق القالب
فتحة الأنف تبدو كوهدة شمية

اللوحاء الأنفية (أو اللوحاء الشمية)[2]) ترفع من ظهارة الشم في الأنف البشري. ثمة لوحاءتان أنفيتان تنشآن كأديم ظاهر سميك من البروز جبهي الأنفي. في الأسبوع الخامس من مراحل تطور الجنين البشري، 

يزداد حجم اللوحاء. في الأسبوع السادس من التطور، ينمو مركز كل لوحاء إلى الداخل ليشكّل فتختي الأنف. هذا النمو يؤدي إلى رفع ظهارة الشم التي ترسم جوف الأنف.[3]

فتحتا الأنف بيضاويتا الشكل وتتركان هامشاً مرتفعاً ينقسم إلى شامخة أنفية وسطية وبروز أنفي طرفي.[3]

البروز الأنفي الأوسط والجانبي يسببان ارتفاع كل لوحاء لتشكيل الأنف، ونثرة الشفة العليا والحنك.[3]

طالع أيضاً

المراجع

هذه المقالة تعتمد على مواد ومعلومات ذات ملكية عامة، من الطبعة العشرين لكتاب تشريح جرايز لعام 1918.

  1. ^ Christopher J. Mungall؛ Melissa Haendel؛ David Osumi-Sutherland، أوبيرون، QID:Q7876491
  2. ^ hednk-027 — صور للجنين مصدرها جامعة كارولاينا الشمالية
  3. ^ ا ب ج Larsen، William J. (2001). Human embryology (ط. 3.). Philadelphia, Pa.: Churchill Livingstone. ص. 353–367. ISBN:0-443-06583-7.{{استشهاد بكتاب}}: صيانة الاستشهاد: التاريخ والسنة (link)

وصلات خارجية

أيقونة بذرة

هذه بذرة مقالة عن علم التشريح بحاجة للتوسيع. فضلًا شارك في تحريرها.

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