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2 days ago · 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 that make up the human body and how they develop and change over time.
- The Editors of Encyclopaedia Britannica
TheBody is a website that covers HIV-related topics, such as advocacy, health, stigma, and treatment. Learn from experts, activists, and people living with HIV about the latest research, trends, and challenges.
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.
Apr 5, 2024 · Here's a quick rundown of the systems of the human body, its vital organs and its "vestigial" organs, as well as a few fascinating facts about how the body works.
- 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 and their functions, as well as the organ systems that support them. Find out how to maintain optimum health and what conditions can affect the organs.
MSD Manuals provide accurate and accessible medical information for professionals and consumers in multiple languages. Learn about the history, mission and global impact of the Manuals, formerly known as The Manual.
