Search results
Results from the WOW.Com Content Network
Human teeth are the only part of the body that cannot heal themselves. Competitive art used to be an Olympic sport. The first person processed at Ellis Island was a 15-year-old girl from Ireland.
Up to 60% of the human adult body is water. 32. Humans have 99.9% of the same DNA sequence. ... Related: 125 Mind-Blowing Historic Facts & Trivia That Are Almost Too Weird to Be True.
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 .
Nowadays, you don't have to take a trip to the local library if you want to go on a fact-finding mission. You don't have to read a whole book, magazine, or even an Encyclopaeda Brittanica to learn ...
The human skeleton performs six major functions: support, movement, protection, production of blood cells, storage of minerals, and endocrine regulation. The human skeleton is not as sexually dimorphic as that of many other primate species, but subtle differences between sexes in the morphology of the skull, dentition, long bones, and pelvis ...
The Human Cell Atlas project, which started in 2016, had as one of its goals to "catalog all cell types (for example, immune cells or brain cells) and sub-types in the human body". [13] By 2018, the Human Cell Atlas description based the project on the assumption that "our characterization of the hundreds of types and subtypes of cells in the ...
This article contains a list of organs in the human body. It is widely believed that there are 79 organs (this number goes up if you count each bone and muscle as an organ on their own, which is becoming a more common practice [1] [2]); however, there is no universal standard definition of what constitutes an organ, and some tissue groups' status as one is debated. [3]
98.6 °F (37.0 °C) is not the normal or average temperature of the human body. That figure comes from an 1860 study, [295] but modern research shows that the average internal temperature is 36.4 °C (97.5 °F), with small fluctuations. [296] [297] [298] The cells in the human body are not outnumbered 10 to 1 by microorganisms. The 10 to 1 ...