According to About.com, water makes up between 65 and 90 percent of all cells in the human body. The remaining elements by mass include oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus, potassium, sulfur, chlorine, sodium, magnesium and trace amounts of iron, cobalt, copper, zinc, iodine, selenium and fluorine.Know More
The composition of the different elements within the body plays a role in the formation if different types of bodily materials, such as fats, protein and DNA. About.com explains that water, composed of two hydrogen atoms and a single oxygen atom, primarily derives its mass from the heavy oxygen molecule. This explains how the human body can simultaneously be mostly water and most densely oxygen. The human body, like all organic compounds, contains a significant amount of carbon. Oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus are the elements that make up 99 percent of the human body's mass.
Not all of the numerous other elements found in the human body actually play a significant role in human life. Oxygen and carbon are the most significant in terms of cellular activity, while some trace elements are believed to have little if anything to do with cellular function; however, as many as 12 trace elements are believed to play some role in overall health and well being.Learn more about Human Anatomy
The cleanest part of the human body is often considered to be the eye because of its abilities to clean itself. The eyelid opens and shuts several times every minute in order to keep the eye clean and moist.Full Answer >
The chest and the abdomen make up the torso on the human body. Another name for the torso is the trunk. Basically, it is the body without the head or limbs.Full Answer >
Unlike other parts of the human body, the ears and nose continue to grow for a person's entire life. This is because the nose and ears contain cartilage, which never stops growing.Full Answer >
Meiosis occurs in the reproductive organs of the human body. Meiosis is the process of cell division that is used to make sperm or egg cells, also known as gametes. In meiosis, cells divide twice.Full Answer >