What makes up 95 of the human body

Platelets thrombocytes. These help to control bleeding. Blood cells are made in the bone marrow. The bone marrow is the soft, spongy material in the center of the bones. Most of the adult body's bone marrow is in the pelvic bones, breast bone, and the bones of the spine. There are other organs and systems in our bodies that help regulate blood cells. The lymph nodes, spleen, and liver help regulate the production, destruction, and differentiation developing a specific function of cells.

Blood cells formed in the bone marrow start out as a stem cell. A stem cell is the first phase of all blood cells.

As the stem cell matures, several distinct cells evolve. These include the red blood cells, white blood cells, and platelets. Immature blood cells are also called blasts. Some blasts stay in the marrow to mature. Others travel to other parts of the body to develop into mature, functioning blood cells. The mainfunction of red blood cells is to carry oxygen from the lungs to the body tissues. And to carry carbon dioxide as a waste product away from the tissues and back to the lungs.

Before you start thinking we should float away with all the oxygen, hydrogen, and nitrogen atoms, remember that the oxygen molecules are mainly part of the water in our body H2O. The eleven common elements found in the human body and their percentage of total body weight.

The other trace elements less than 0. Shyamala Iyer. Animal Cell. Bacterial Cell. Fungal Cell. Plant Cell. By volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. Water is indeed essential for all life on, in, and above the Earth. This is important to you because you are made up mostly of water.

Find out what water does for the human body. Think of what you need to survive, really just survive. Naturally, I'm going to concentrate on water here. According to H. Each day humans must consume a certain amount of water to survive.

Of course, this varies according to age and gender, and also by where someone lives. Generally, an adult male needs about 3 liters 3. All of the water a person needs does not have to come from drinking liquids, as some of this water is contained in the food we eat. According to Dr. Jeffrey Utz, Neuroscience, pediatrics, Allegheny University, different people have different percentages of their bodies made up of water.

However, fat tissue does not have as much water as lean tissue. There just wouldn't be any you, me, or Fido the dog without the existence of an ample liquid water supply on Earth. The unique qualities and properties of water are what make it so important and basic to life.

The cells in our bodies are full of water. Water consumption plays an important role in the digestion of solid foods; an acidic stomach will respond to hydration, and therefore make it easier to digest food. Sometimes, an absence of water in the body may lead to common symptoms such as heartburn and constipation. Excretion is the process by which waste products of metabolism and other non-useful materials are eliminated from an organism.

This is primarily carried out by the kidneys through urine, and the skin through sweat. Urine is a liquid waste product of the body secreted by the kidney by a process of filtration from blood known as urination and excreted by the urethra. Sweating, on the other hand, is the release of a fluid consisting primarily of water as well as minerals, lactate, and urea from the body's sweat glands in the skin; this process is also known as perspiration.