Dr Najeeb Embryology Lectures 13
Dr Najeeb Embryology Lectures 13: Development up to 3rd week (Trileminar Disc) part 3
In this lecture, Dr Najeeb continues his explanation of the development of the trilaminar disc, which is the precursor of the three germ layers: ectoderm, mesoderm and endoderm. He covers the following topics:
The formation of the notochord, which is a rod-like structure that defines the longitudinal axis of the embryo and induces the formation of the neural tube.
The formation of the neural tube, which is the precursor of the central nervous system. He describes the process of neurulation, which involves the folding and closure of the neural plate.
The formation of the neural crest cells, which are a population of multipotent cells that migrate from the neural tube and give rise to various structures such as cranial nerves, sensory ganglia, melanocytes, adrenal medulla and more.
The formation of the somites, which are segmented blocks of mesoderm that give rise to the axial skeleton, skeletal muscles and dermis.
The formation of the intraembryonic coelom, which is a cavity within the mesoderm that forms the pericardial, pleural and peritoneal cavities.
The formation of the lateral plate mesoderm, which is divided into two layers: somatic (parietal) and splanchnic (visceral). He explains how these layers contribute to the formation of the body wall, limbs, heart, blood vessels and gut.
This lecture is part of a series of lectures on embryology by Dr Najeeb, who is a renowned medical teacher and has over 800+ videos on basic medical sciences and clinical medicine. His lectures are delivered in English using hand-drawn illustrations on a traditional whiteboard. You can access his lectures on his website [Dr Najeeb Lectures] or on his YouTube channel [Dr Najeeb Lectures]. You can also enroll in his Udemy course [Master Embryology With Dr. Najeeb], which covers all the topics of embryology in detail.