explen of diffect in human
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Human body
Human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs,
The human femur can support a weight thirty times that of the human body, making it even stronger than steel.
The evolution of the human eyebrows is believed to have prevented the influx of sweat into the eyes.
Chronic stress produces high levels of cortisol, which may cause damage to the hippocampus in the brain, leading to memory loss.
An increase in the volume of background noise has been correlated with the perception of food as less sweet or less salty.
The human nervous system can relay electrochemical messages at a rate of 249 mph (400 km/hr).
Human anatomy and physiology are treated in many different articles. 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. For a description of how the body develops, from conception through old age, see aging; growth; prenatal development; human development.
For detailed coverage of the body’s biochemical constituents, see protein; carbohydrate; lipid; nucleic acid; vitamin; and hormone. For information on the structure and function of the cells that constitute the body, see cell.