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Aug 17, 2024 · Learn about the structure, function, and composition of the human body, the physical substance of the human organism. Explore the tissues, organs, systems, and biochemical constituents of the body, as well as its development and aging.
- The Editors of Encyclopaedia Britannica
Learn about the human body, the entire structure of a human being composed of cells, tissues, organs and systems. Find out the elements, water content, genome, tissues, organs and functions of the human body.
There are 12 major anatomy systems: Skeletal, Muscular, Cardiovascular, Digestive, Endocrine, Nervous, Respiratory, Immune/Lymphatic, Urinary, Female Reproductive, Male Reproductive, Integumentary.
- 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).
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.
Learn about the structure and function of the human body, from the skeletal system to the reproductive system, with detailed diagrams and names. Explore the anatomy of the head, neck, upper and lower limbs, and more.
Directional Terms. Body Planes. Body Cavities and Serous Membranes. Practice. Learning Objectives. At the end of this unit, you should be able to: I. Define the terms: organ, organ system and organism. II. Name the eleven organ systems of the human body, identify the major organs, and give a major function of each system. III.
