تحضير درس أحلل حركة إرادية في العلوم الطبيعية للسنة الرابعة متوسط

مذكرة تحضير درس أحلل حركة إرادية في العلوم الطبيعية للسنة الرابعة متوسط الجيل الثاني 2020-2021

نشاط البحث والتقصي :

النشاط 01 :عرض وثائق تبين مقر اصدار الرسالة العصبية ومطالبة المجموعات بتحليل الوضعيات .

النشاط 02 : عرض وثائق تبين مقارنة مسار الرسالة الحركية على مستوى الرأس وعلى مستوى أسفل الرأس ومطالبة التلاميذ بتحديد العناصر المتدخلة في تحقيق الفعل الإرادي في كل حالة

1- قارن بين المسارات التي تسلكها الرسائل العصبية الحركية في حالة الحركة الإرادية التي تحدث :

- على مستوى الرأس .

- على مستوى أسفل الرأس

على مستوى الرأس :

قشرة مخية حركية أعصاب قحفية (أعصاب ناقلة ) عضلات هيكلية منفذة

مثل عضلات الوجه مثل حركة العين ، حركة اللسان.......

على مستوى أسفل الرأس :

قشرة مخية حركية البصلة السيسائية النخاع الشوكي أعصا حركية العضلات الهيكلية مثل عضلات الساقين لرمي الكرة

2- حدد في كل حالة العناصر التشريحية المتدخلة

في الفعل الإرادي .

- العناصر المتدخلة في الحالة 1 : قشرة المخ محركة عصب قحفي عضلات هيكلية (عضو منفذ)

العناصر المتدخلة في الحالة 2 : قشرة المخ محركة بصلة سيسائية نخاع شوكي أعصاب عضلات هيكلية منفذة

النتيجة : لحدوث الحركة الإرادية ضرورة سلامة الأعضاء التالية : قشرة المخ الحركية – الأعصاب الحركية – العضلات . بالإضافة للبصلة السيسائية ( للمناطق على مستوى أسفل الرأس والنخاع الشوكي كممر للجذع والأطراف

تعليقات

إرسال تعليق

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