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  2. May 26, 2024 · Learn about the structure and function of the human body, its organs, systems, and tissues. Explore the chemical composition, development, and evolution of the human body with Britannica.

    • The Editors of Encyclopaedia Britannica
  3. en.wikipedia.org › wiki › Human_bodyHuman body - Wikipedia

    The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organs and then organ systems. They ensure homeostasis and the viability of the human body.

    • 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).
  4. Learn about the structure and functions of the human body's 12 major anatomy systems: skeletal, muscular, cardiovascular, digestive, endocrine, nervous, respiratory, immune/lymphatic, urinary, female reproductive, male reproductive, and integumentary.

  5. Apr 5, 2024 · Health. Anatomy. What are the systems of the body? Fast facts about the human body and how it works. References. By Rachael Rettner, Nicoletta Lanese, Scott Dutfield. last updated 5 April...

  6. Learn about the structure and function of the major organ systems of the human body, such as circulatory, respiratory, endocrine, nervous, and more. Watch videos, read articles, and test your knowledge with quizzes and flashcards.

  7. MSD Manuals provide comprehensive and accurate medical information for professionals and consumers in multiple languages. Learn about the history, mission and global impact of the Manuals, but not about human body structure.

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