A Practical Physiology

A Practical Physiology by Albert F. Blaisdell is a comprehensive textbook that provides an in-depth understanding of the human body's functions and processes. The book covers various topics related to physiology, including the nervous system, cardiovascular system, respiratory system, digestive system, and endocrine system. The author explains complex concepts in a simple and easy-to-understand language, making it an ideal resource for students, medical professionals, and anyone interested in learning about the human body. The book also includes numerous illustrations, diagrams, and tables that help readers grasp the information quickly and easily. Overall, A Practical Physiology is an excellent guide that provides a clear and concise overview of the human body's functions and processes.We have just learned that the pitch of sound depends on the rapidity of the vibrations. This depends on the length of cords and their tightness for the shorter and tighter a string is, the higher is the note which its vibration produces. The vocal cords of women are about one-third shorter than those of men, hence the higher pitch of the notes they produce. In children the vocal cords are shorter than in adults. The cords of tenor singers are also shorter than those of basses and baritones. The muscles within the larynx, of course, play a very important part in altering the tension of the vocal cords.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.