Members of the animal kingdom are characterized by many similarities and patterns, such as: two eyes, two ears, one mouth and four limbs. They also have many obvious differences in habits and in what they survive upon; some are herbivores, while others are carnivores. The design of the human body is a marvelous mystery. Humans are characterized by having legs for walking, and arms and hands for skillful work. They have a sophisticated sensory system that can distinguish heat from cold and identify fine movements and distances. The human brain is indeed a great wonder, with its unique creative ability that is not found in other members of the animal kingdom. What is truly amazing is the integrated function of the different systems of the human body, particularly the heart and the mind. This book explores many of the unique anatomical and physiological features of the human body, which cause one to respect the great wisdom behind such a well-designed creature.