Particularly important are cellular proteins called enzymes, which catalyze the chemical reactions necessary for life. An organ is a group of tissues that constitutes a distinct structural and functional unit. Circulatory system.
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Our body is also like other mammals, and somewhat like other vertebrates. The raster. A full-body human specimen injected with a polymer preservative stands on display at an exhibition called "Bodies. Chief among these are calcium, phosphorus, sodium, magnesium, and iron.
The average human heart beats aroundtimes every day. Many great thinkers consider consciousness to be the biggest mystery not just of the human body, but the biggest one, period. Find out how it works, from head to toe.
Learn how the lungs provide the breath of life and see the debilitating effects of asthma. If you spread out the wrinkles in the brain it would be about the size of a pillow case. Why was the ancient city of Cahokia abandoned? Of these features, the first two are present only during the embryonic stage in the human; the notochord is replaced by the vertebral column, and the pharyngeal gill slits are lost completely.
The human body, which is made up of numerous cells, begins as a single, newly fertilized cell. Why do male gorillas beat their chests? As intelligent as are many other mammals—such as chimpanzees and dolphins—none have achieved the intellectual status of the human species. The human body is made up of around 37 trillion cells. Define human body.
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More human anatomy diagrams: nervous system, skeleton, front view of muscles, back view of muscles Organise the organs in systtems interactive body. What happens to street animals when tourists suddenly disappear? For detailed discussions of specific tissues, organs, and systems, see human blood; cardiovascular system; digestive system, human; endocrine system, human; renal system; skin; human muscle system; nervous system; reproductive system, human; respiration, human; sensory reception, human; skeletal system, human.
There are several ways to consider the composition of the human body, including the elements, type of molecule, or type of cells. Chronic stress produces high levels of cortisol, which may cause damage to the hippocampus in the brain, leading to memory loss.
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The diagram shows five levels of organization in a multicellular organism. Water is found in the extracellular fluids of the body the blood plasma, the lymph, and the interstitial fluid and within the cells themselves. Lipids—chiefly fats, phospholipids, and steroids—are major structural components of the human body. Nervous system. Figure 3.]
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