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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 .
Various bones of the human skeletal system. The axial skeleton, comprising the spine, chest and head, contains 80 bones. The appendicular skeleton, comprising the arms and legs, including the shoulder and pelvic girdles, contains 126 bones, bringing the total for the entire skeleton to 206 bones.
A gene associated with dividing the head and body into regions Fizzy-related: Flippase and floppase: Protein that "flips" and "flops" phosphatidylserines on the cell membrane from the inner side and the outer side, respectively
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 December 2024. List of organ systems in the human body Part of a series of lists about Human anatomy General Features Regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors ...
Celebrities With Weird Body Parts Celebs may look flawless but you'd be surprised to know that many stars are hiding deformities underneath all that professional styling. Like supermodel Karolina ...
The bone mass in the skeleton makes up about 14% of the total body weight (ca. 10–11 kg for an average person) and reaches maximum mass between the ages of 25 and 30. [2] The human skeleton can be divided into the axial skeleton and the appendicular skeleton.
H. erectus also was the first to evolve a characteristically human body plan. Homo sapiens emerged in Africa around 300,000 years ago from a species commonly designated as either H. heidelbergensis or H. rhodesiensis, the descendants of H. erectus that remained in Africa. [29]
Based on Hippocratic medicine, it was believed that for a body to be healthy, the four humors should be balanced in amount and strength. [17] The proper blending and balance of the four humors was known as eukrasia. [18] Humorism theory was improved by Galen, who incorporated his understanding of the humors into his interpretation of the human ...