Sabyasachi Sircar 
Principles of Medical Physiology, 2/E [PDF ebook] 

This book provides a concise, concept-rich, and well-illustrated text of medical physiology. Written primarily for undergraduate medical students, the lucidity of the text should also appeal to a large section of health professionals.
Key features of the book
– The four cornerstones of this book are utility, lucidity, brevity, and contextual relevance.
– The content of each chapter maps well onto a single easy-paced lecture.
– The key words and phrases in the text are emphasized for quick revision.
– The text is complemented by numerous simple diagrams that can be quickly comprehended.
– The relevant fundamentals of physics and chemistry are recapitulated in the early chapters.
– The complex anatomy of the brain is elucidated through three-dimensional schematic diagrams.
– Revision questions listed at the end of each chapter relate mostly to the how’s and why’s of physiological mechanisms.
– Comic illustrations seek to lighten the mood as the reader reckons with the intricacies of the subject.