Questions and Answers
ما هو المسراق الظهري المعلق لألنبوب القلبي والموجود في الصورة لليمين؟
ما هو الهيكل الظاهر في الصورة اليمنى لمضغة بعمر 28 يوم؟
ما هو المتضمن بين مدخل ومخرج القلب في الصورة المجاورة؟
ما هو المرحلة التي تظهر في الشكل المجاور؟
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ما هو المسار الذي يظهر في الشكل المقطع عرضي لمضغة بعمر 22 يوم؟
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Study Notes
علم الجنين
- Occurs in the fifth and sixth weeks of gestation
- formed from the cardiovascular region
- The notochord is surrounded by the neural tube and the mesoderm
- The notochord is divided into three parts: the head, the thoracic region, and the tail region
تشكل المنطقة القلبية
- Appears in the third week
- Located between the transverse septum and the pharyngeal plate
- The neural tube is surrounded by the neural crest
- The neural crest develops into the mesenchyme
- The mesenchyme differentiates into the three primary germ layers: ectoderm, endoderm, and mesoderm
تشكل الانبوب القلبي
- Appears in the 20th day
- Formed from the middle layer of the lateral plate
- The cardiac tube is divided into two parts: the atrial and ventricular portions
- The atrial portion is surrounded by the pericardium
- The ventricular portion is surrounded by the myocardium
- The myocardium is surrounded by the epicardium
تشكل التجويف التاموري
- Formed from the endoderm
- Divided into two parts: the anterior and posterior portions
- The anterior portion develops into the pharynx
- The posterior portion develops into the esophagus
- The T-shaped cavity develops into the trachea and bronchi
تشكل عضلة القلب
- Developed from the myocardium
- Consists of three layers: the epicardium, myocardium, and endocardium
- The epicardium is the outermost layer
- The myocardium is the middle layer
- The endocardium is the innermost layer
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Description
اختبار عملي يتضمن أسئلة حول الجلسة الخامسة والسادسة في علم الجنين، ويشمل المواضيع مثل الحبل الظهري، والمنطقة القلبية، والحاجز المستعرض، والصفيحة الأمامية.
