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5 days ago · 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. Learn more about the composition, form, and physical adaptations of the human body.
- The Editors of Encyclopaedia Britannica
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. The external human body consists of a head, hair, neck, torso (which includes the thorax and abdomen), genitals, arms, hands, legs, and feet.
By far the biggest constituent of you, is emptiness. The void. This isn’t a nihilistic plunge into the darkness of the soul, but a realistic assessment of your composition. Let’s take a zoom in on the simplest type of atom in your body, a hydrogen atom.
Apr 5, 2024 · Learn all about the human body's many systems and some of its individual organs, both vital and vestigial.
- 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).
The body contains all the internal organs, body parts, bones and muscles that make up the human anatomy. Your fleshy body has evolved over millions of years, and this is the science changing the way we understand it.
Mar 11, 2024 · The human body has eleven organ systems: cardiovascular, digestive, endocrine, immune, integumentary, lymphatic, musculoskeletal, nervous, reproductive, respiratory, and urinary. Human organism: All together these smaller pieces create a single living entity—the human organism.
