human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs, and systems. Human anatomy and physiology are treated in many different articles. The human body has four limbs (two arms and two legs), a head and a neck, which connect to the torso.

Understanding the Context

The body's shape is determined by a strong skeleton made of bone and cartilage, surrounded by fat (adipose tissue), muscle, connective tissue, organs, and other structures. This topic page will provide you with a quick introduction to the systems of the human body, so that every organ you learn later on will add a superstructure to the basic concept you adopt here. Explore the full human body diagram for a comprehensive understanding of the various systems and organs that make up the human body. Anatomy is the science that studies the structure of the body.

Key Insights

Learn about the organs and body parts. The human body can be studied from a number of perspectives, mainly, gross anatomy and microscopic anatomy. In this section, we will focus on gross anatomy, but we need to consider the levels of organization of the human body, starting with chemical, organelle, cellular, tissue, organ, organ system, and organisms. Figure 1: The Anatomical Position The meaning of BODY is the main part of a plant or animal body especially as distinguished from limbs and head : trunk. How to use body in a sentence.

Final Thoughts

There’s strong evidence it spans your entire body, including in and around major organs. There’s still a lot of ongoing research into how these organs work and what they do.