Youtor
1st week of development Embryology Lectures
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=wkTjlFcLhGI
𝐒𝐮𝐛𝐬𝐜𝐫𝐢𝐛𝐞 𝗙𝐨𝐫 𝗠𝐨𝐫𝐞 𝗜𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 𝐨𝐧 𝗛𝐞𝐚𝐥𝐭𝐡 👩⚕ 𝐚𝐧𝐝 𝗠𝐞𝐝𝐢𝐜𝐢𝐧𝐞💉🩺💊 • 𝐘𝐨𝐮𝐭𝐮𝐛𝐞 : / @draishwaryakelkar • 📌𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸 : / draishwaryakelkar • 📌𝗧𝘄𝗶𝘁𝘁𝗲𝗿: / aishwayadr • 📌𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺 : / clinical.learning • 1st week of development - • -------------------------------------------- • The first week of human development is a critical phase that lays the foundation for the entire embryonic period. 🎥🧬 It begins with fertilization and ends with the formation of the blastocyst, ready for implantation into the uterine wall. • Day 1 - Fertilization : • Location: Occurs in the ampulla of the fallopian tube. • Process: The sperm penetrates the zona pellucida of the oocyte, leading to the fusion of their genetic material to form a zygote, restoring the diploid chromosome number. • Day 2-3 - Cleavage: • Mitotic Divisions: The zygote undergoes rapid mitotic divisions called cleavage, resulting in smaller cells called blastomeres. • Morula Formation: By the third day, a 16-cell stage morula is formed, resembling a mulberry. • Day 4 - Compaction and Blastocyst Formation: • Compaction: Blastomeres increase their surface contact with each other, maximizing adhesion. • Blastocyst: A fluid-filled cavity called the blastocoel forms, transforming the morula into a blastocyst. The blastocyst consists of: • Inner Cell Mass (ICM): Forms the embryo. • Trophoblast: Forms the placenta. • Day 5-6 - Hatching and Early Implantation: • Zona Pellucida: The blastocyst sheds the zona pellucida in a process called hatching, allowing it to implant in the uterine wall. • Attachment: The blastocyst begins to attach to the endometrial epithelium of the uterus, initiating the process of implantation. • Day 7 - Implantation: • Trophoblast Differentiation: The trophoblast differentiates into the cytotrophoblast and syncytiotrophoblast, which help in embedding the blastocyst into the endometrium and initiating placental development. • Understanding the first week of development is crucial for diagnosing and managing early pregnancy conditions, such as ectopic pregnancies and early embryonic loss. Mastery of this phase is essential for specialties like obstetrics, gynecology, and reproductive medicine. Whether preparing for FMGE, NEET PG, or USMLE, exploring the first week of development enhances your embryological knowledge and clinical skills. Let's delve into the early stages of human development together! 💡 • • #Embryology #FirstWeekOfDevelopment #MedicalEducation #FMGE #NEETPG #USMLE #Obstetrics #Gynecology #MedicalStudents #MedEd #StudyTips #MedicalExams #ExamPrep #AnatomyLearning 📚🧬
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