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| hi:foetal_embryology [2024/07/31 07:00] – created brahmantra | hi:foetal_embryology [] () – - () 127.0.0.1 | ||
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| - | ====== भ्रूण विज्ञान | ||
| - | ===== परिचय Introduction | ||
| - | |||
| - | * युग्मज (zygote ) | ||
| - | * द्वि कोशिकीय युग्मज ( क्स | ||
| - | * 4 celled (4 क्स | ||
| - | * 8 celled (8 क्स ) | ||
| - | * 16 celled (16 क्स ) | ||
| - | * जननपूट | ||
| - | * जननगुहा ( blastoceol - ह,अः) | ||
| - | * outer cell mass ( क ) | ||
| - | * पोषज ( trophoblast ) | ||
| - | * कोशिकापोषज | ||
| - | * बीजपोषक संकोशिका (synctiotrophoblast - कृ ) | ||
| - | * भ्रूणीय ध्रुव (Emrbyonic pole - किं ) | ||
| - | * अवभ्रूणीय ध्रुव ( Abembryonic pole - कुं ) | ||
| - | * Mural trophoblast (कों ) | ||
| - | * भ्रूणज ( inner cell mass / embryoblast - स) | ||
| - | * अधिःज ( epiblast - श | ||
| - | * उल्वीय गुहा ( amniotic cavity - शः ) | ||
| - | * उलवज ( amnioblast ) | ||
| - | * ectoderm | ||
| - | * आद्य रेखा | ||
| - | * आद्य मंडली , आद्य गांठ (Primitive knot / node / hensens node ) | ||
| - | * जनन छिद्र ( blastopore ) | ||
| - | * आद्य पृष्ठरज्जु नाल ( notochordal process | ||
| - | * आद्य तंत्राशय नली (neurenteric canal ) | ||
| - | * तंत्रिक शिखर ( neural crest ) | ||
| - | * [[: | ||
| - | * अधःज ( hypoblast - ष ) | ||
| - | * पीतक थैली (yolk sac - षः) | ||
| - | * heuser membrane (पीतकज ) | ||
| - | * endoderm | ||
| - | * प्ररज्जु पत्तल | ||
| - | * [[: | ||
| - | * [[: | ||
| - | * मध्यत्वक, | ||
| - | * paraxial ( परअक्षीय - ) | ||
| - | * extends from primitive streak to prechordal plate | ||
| - | * extends to otic vesicle of hind brain | ||
| - | * post otic part undergoes segmentation in to cubical blocks | ||
| - | * अनुकाय , कायखंड ( Somites | ||
| - | * 44 pairs develop | ||
| - | * first 4 pairs called occipital somites | ||
| - | * form skull | ||
| - | * 8 cervical | ||
| - | * 12 thoracic | ||
| - | * 5 lumbar | ||
| - | * 5 sacral | ||
| - | * 8-10 coccygeal | ||
| - | * (sclerotome) | ||
| - | * अक्षीय कंकाल ( axial skeleton ) | ||
| - | * [[: | ||
| - | * vertebral column | ||
| - | * ribs | ||
| - | * (dermato-myotome) | ||
| - | * lateral (dermatome) plate | ||
| - | * त्वचा ( dermis of skin ) | ||
| - | * medial muscle plate | ||
| - | * अक्षीय मांस - पेशी (axial muscles) | ||
| - | * muscles of tongue | ||
| - | * diaphragm | ||
| - | * trunk | ||
| - | * अंगीय मांस पेशी ( limb muscles ) | ||
| - | * rostral/ beak part remains unsegmented | ||
| - | * develop base of skull | ||
| - | * Intermediate ( अंतरामध्य | ||
| - | * upper cervical and thoracic regions show segmentation | ||
| - | * lower segments are unsegmented | ||
| - | * Nephrogenic cord | ||
| - | * [[: | ||
| - | * [[: | ||
| - | * Lateral ( पार्श्व ) | ||
| - | * continuous with pericardial bar cephalic to buccopharyngeal membrane | ||
| - | * pericardial bar | ||
| - | * pericardial sac | ||
| - | * series of clefts appear inside | ||
| - | * join to form | ||
| - | * intraembryonic coelom | ||
| - | * u shaped tubular passage | ||
| - | * divides mesoderm | ||
| - | * somatic layer with overlying ectoderm | ||
| - | * somatopleure | ||
| - | * body wall | ||
| - | * parietal layer | ||
| - | * skeletal elements | ||
| - | * pectoral girdle | ||
| - | * pelvic girdle | ||
| - | * splanchnic layer with underlying endoderm | ||
| - | | ||
| - | * Splanchnic layer | ||
| - | * gut | ||
| - | * splanchnic mesoderm | ||
| - | * [[: | ||
| - | * बाह्य भ्रूणगुहा ( extraembryonic coelom ) | ||
| - | * बाह्य मध्यत्वक ( extramebryonic mesoderm ) | ||
| - | * आद्यकायिक | ||
| - | * आद्यआशय मध्यजनस्तर ( Splanchnopleuric mesoderm ) | ||
| - | * [[: | ||
| - | * PRIMITIVE POSTURE OF EMBRYO | ||
| - | * the first folding of embryo to reorganize the organ locations | ||
| - | * cardiogenic area , pericardial sac , septum transversum | ||
| - | |||
| - | |||
| - | * आद्य गर्त ( Primitive pit ) | ||
| - | * आद्य खात | ||
| - | * आद्य स्थंभ / पृष्ठरज्जु | ||
| - | |||
| - | |||
| - | * decidua ( माँ ) | ||
| - | * decidua basalis पाती आधार | ||
| - | * decidua parietalis पाती पार्श्व | ||
| - | * decidua capsularis पाती संपुट | ||
| - | |||
| - | |||
| - | ===== Basic process in development | ||
| - | |||
| - | |||
| - | |||
| - | ===== Germ Cells and their maturation ===== | ||
| - | |||
| - | |||
| - | ===== निषेचन | ||
| - | |||
| - | ===== Stages of embryology | ||
| - | |||
| - | |||
| - | |||
| - | ===== Placenta ===== | ||
| - | |||
| - | |||
| - | ===== Fertilization ===== | ||
| - | |||
| - | {{: | ||
| - | |||
| - | * Amnioblast - | ||
| - | * Epiblast - आद्यअधिज | ||
| - | * Hypoblast - आद्यअधःज | ||
| - | * Trophoblast | ||
| - | * Synctiotrophoblast | ||
| - | * Cytotrophoblast | ||
| - | ==== युग्मज ZYGOTE ==== | ||
| - | |||
| - | {{:: | ||
| - | |||
| - | ===== STAGES OF EMBRYOLOGY ===== | ||
| - | |||
| - | ==== पहले सप्ताह में बदलाव | ||
| - | |||
| - | **GERMINAL PERIOD** | ||
| - | |||
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| - | ==== दूसरे सप्ताह में बदलाव | ||
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| - | {{:: | ||
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| - | ==== तीसरे सप्ताह में बदलाव | ||
| - | |||
| - | |||
| - | ===== SYSTEMIC EMBRYOLOGY ===== | ||
| - | |||
| - | * | ||
| - | * [[: | ||