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Sep 21, 2024 · The human body is the physical substance of the human organism. Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands.
- The Editors of Encyclopaedia Britannica
Learn about the human body, the entire structure of a human being composed of cells, tissues, organs and systems. Explore the elements, genome, tissues, organs and functions of the body, as well as its variations and interactions.
Learn about the 12 major anatomy systems of the human body with detailed 3D illustrations. Explore the skeletal, muscular, cardiovascular, digestive, endocrine, nervous, respiratory, immune, urinary, reproductive, and integumentary systems.
Jan 26, 2024 · Learn about the vital and non-vital organs of the body, their functions, and the organ systems they belong to. See an interactive body map and diagram of the organs and their locations.
- Skeletal system. The skeletal system is composed of bones and cartilages. There are two parts of the skeleton; axial and appendicular. The axial skeleton consists of the bones of the head and trunk.
- Muscular system. The muscular system consists of all the body muscles. There are three muscle types; smooth, cardiac and skeletal muscles. Smooth muscle is found within walls of blood vessels and hollow organs such as the stomach or intestines.
- Cardiovascular system. The cardiovascular system is comprised of the heart and the circulatory system of blood vessels. The heart is composed of four chambers; two atria and two ventricles.
- Respiratory system. The respiratory system consists of a series of organs; the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and lungs (alveoli).
Apr 5, 2024 · The human body is a complex network of systems that work together to keep life-sustaining processes running smoothly. These systems break down food for fuel, clear...
Jun 20, 2023 · Learn about the 11 major organ systems and their functions in the human body. Explore the anatomy and physiology of each organ and system with diagrams and descriptions.
