Inderbir Singh's HUMAN EMBRYOLOGY
Tribute to a Legend
Professor Inderbir Singh, a legendary anatomist, is renowned for being a pillar in the education of generations of medical graduates across the globe. He was one of the greatest teachers of his time. He was a passionate writer who poured his soul into his work. His eagle's eye for details and meticulous way of writing made his books immensely popular amongst students. He managed his lifetime to become enmeshed in millions of hearts. He was conferred the title of Professor Emeritus by Maharshi Dayanand University, Rohtak.
On 12th May, 2014, he was awarded posthumously with Emeritus Teacher Award by National Board of Examination for making invaluable contribution in teaching of Anatomy. This award is given to honour legends who have made tremendous contribution in the field of medical education. He was a visionary for his time, and the legacies he left behind are his various textbooks on Gross Anatomy, Histology, Neuroanatomy and Embryology. Although his mortal frame is not present amongst us, his genius will live on forever.
Inderbir Singh's HUMAN EMBRYOLOGY
ELEVENTH EDITION
Edited by
V Subhadra Devi MS (Anatomy)
Professor and Head Department of Anatomy Sri Venkateswara Institute of Medical Sciences (SVIMS)
Tirupati, Andhra Pradesh, India
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Human Embryology
First to Ninth Editions published by Macmillan Publishers India Ltd (1976-2013)
Tenth Edition published by Jaypee Brothers Medical Publishers (P) Ltd (2014)
Eleventh Edition: 2018
9789352701155
Printed at
During the publication of my earlier book - “Basic Histology – A Color Atlas and Text” the publishers proposed to me to revise the embryology book written by late Prof Inderbir Singh. Notwithstanding 35 years of experience in teaching embryology and several publications in human developmental anatomy, I was skeptical because it is simply difficult for anyone to match the simplicity of expression and sheer elegance of images so diligently originated by Prof. Singh. With the encouragement provided by the publishers and colleagues, I have taken the proverbial plunge.
When I started my career as a medical teacher way back in 1981, I used to reproduce the diagrams from Prof. Inderbir Singh's embryology on black board. With the evolution of technology, I have initially transcribed the figures on to OHP sheets and recently upgraded several of them into 3D images, some of which are included in the present edition of the book.
Like all its previous editions, this is also a one person effort which clearly offers scope for improvement. Suggestions from academics, students and professionals are welcome for incorporation in the coming editions.
I thank all my students who are my inspiration for revising this book. I am thankful to all staff and students in the Department of Anatomy, SV Medical College and Sri Venkateswara Institute of Medical Sciences, Tirupati, Andhra Pradesh, India, for their continuous support and constructive feedback at different stages while this book is evolving. I make a special mention of Mr. K Thyagaraju, Assistant Professor, for drawing and Photoshop editing several of the figures. Some of the figures in the present edition originated from the research carried out by the postgraduate students in my lab.
I am also thankful to Shri Jitendar P Vij (Group Chairman), Mr Ankit Vij (Group President) of M/s Jaypee Brothers Medical Publishers (P) Ltd, New Delhi, India, for kindly agreeing to publish this book, and the production team especially Ms. Ritu Sharma, Dr Madhu Chaudhary, Dr Pinky Chauhan and Ms. Samina Khan for their dedicated work.
V Subhadra Devi
Preface to the First Edition
This book on human embryology has been written keeping in mind the requirements of undergraduate medical students. The subject of embryology has traditionally been studied from imported textbooks of anatomy or of embryology. Experience has shown that the treatment of the subject in most of these books is way above the head of the average medical student in India. The difficulty has increased from year to year as there has been, and continues to be, progressive deterioration in the standards of the teaching of English in our schools and colleges. The combination of unfamiliar sophistications of language and of an involved technical subject, has very often left the student bewildered.
In this book, care has been taken to ensure that the text provides all the information necessary for an intelligent understanding of the essential features of the development of various organs and tissues of the human body. At the same time, several innovations have been used to make the subject easy to understand.
Firstly, the language has been kept simple. Care has been taken not to compress too many facts into an involved sentence. New words are clearly explained.
Secondly, simultaneous references to the development of more than one structure have been avoided as far as possible. While this has necessitated some repetition, it is hoped that this has removed one of the greatest factors leading to confusion in the study of this subject.
Thirdly, almost every step in development has been shown in a simple, easy to understand, illustration. To avoid confusion, only structures relevant to the discussion are shown. As far as possible, the drawings have been oriented as in adult anatomy to facilitate comprehension.
Fourthly, the chapters have been arranged so that all structures referred to at a particular stage have already been adequately introduced.
In an effort of this kind it is inevitable that some errors of omission, and of commission, are liable to creep in. To obviate as many of these as possible a number of eminent anatomists were requested to read through the text. Their suggestions have greatly added to the accuracy and usefulness of this book. Nevertheless, scope for further improvement remains, and the author would welcome suggestions to this end both from teachers and from students.
Rohtak
January 1976
Inderbir Singh