ماذا يحدث عندما تخجل؟

26 يوليو 2014

عندما تشعر بالاحراج نتيجة موقف معين تطرأ بعض التغيرات على ملامح وجهك تكشف خجلك مثل:
يتسع حجم بؤبؤ العين
يحمر الخدين
فما سبب حدوث هذه التغيرات؟
عند الشعور بالخجل يبدأ الجهاز العصبي بافراز هرمون الادرينالين، فتطلب محلقة الأدينيل adenyl cyclase من الأوعية الدموية السماح للادرينالين بالدخول، فتتوسع الأوعية الدموية، مما يجعل الدم يتدفق الى الوجه، ويندفع الدم الى الدماغ، ويتسع بؤبؤ العين

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أخر المواضيع من قسم : جسم الانسان

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