The human anatomy consists of everything your body is made of. The skeletal, muscular, digestive, circulatory, lymphatic, endocrine, immune, urinary, reproductive and nervous systems all make up the human body. If you look at a chart of the different systems, you will see just how in depth our anatomy is and how it all works. You will understand where the heart beats the blood to, and why you can feel a pin prick, because of your nervous system. The human anatomy is a complex and interesting thing made easier to learn with charts and pictures.