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The human body is asymmetrical. As a result, the left and right foot are not exactly the same size. While these differences are mostly unnoticeable, others may be more obvious. More »

www.reference.com Science Human Anatomy

Some causes of a swollen right foot may be an injury, such as a sprained ankle or foot, lymphedema, or infection, according to WebMD. Blood clot and medication side effects are other possible causes of a swollen foot. Sw... More »

www.reference.com Health Pain & Symptoms

Causes of sciatic nerve pain in the legs include lumbar spinal stenosis, degenerative disc disease, spondylolisthesis and pregnancy, according to WebMD. Other causes of pain from the sciatic nerve include being overweigh... More »

www.reference.com Health Conditions & Diseases
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A human body has 24 ribs. These 24 bones are paired up, symmetrically, to form the rib cage. The rib cage provides protection to the chest cavity, which houses vital organs including the heart and lungs. More »

www.reference.com Science Human Anatomy

A human body anatomy chart can be used for educational purposes in all levels of health, science and medical courses, as well as to help medical professionals provide informational understanding to patients. Graphical de... More »

www.reference.com Science Human Anatomy

People float in water because the human body weighs less than the volume of water it displaces when submerged. The buoyancy of an individual depends on his or her body type, as those with more muscle tend to sink further... More »

www.reference.com Science Human Anatomy

Urine is not sterile before or after it leaves the human body. Bacteria are always present in urine at very low concentrations. These bacteria are found in the bladder and help reduce the risk of bladder infections and u... More »

www.reference.com Science Human Anatomy