Psychology & Psychiatry

Skeletal shapes key to rapid recognition of objects

In the blink of an eye, the human visual system can process an object, determining whether it's a cup or a sock within milliseconds, and with seemingly little effort. It's well-established that an object's shape is a critical ...

Diseases, Conditions, Syndromes

Bone fragility variants linked to concordant pediatric skeleton

(HealthDay)—Established bone fragility variants are associated with a concordant phenotypic model of the pediatric skeleton but not with discordant phenotypic models, according to a study published online Dec. 14 in the ...

Medical research

New research reveals how our skeleton is a lot like our brain

Researchers from Monash University and St Vincent's Institute of Medical Research in Melbourne have used mathematical modelling combined with advanced imaging technology to calculate, for the first time, the number and connectivity ...

Diseases, Conditions, Syndromes

Did Columbus really bring syphilis to Europe?

(HealthDay)—A new study is intensifying the debate over whether Christopher Columbus or his crews brought syphilis from the New World to Europe, setting the stage for hundreds of years of illness and death.

Psychology & Psychiatry

From the mouths of babes: The truth about toddler talk

(Medical Xpress)—The sound of small children chattering has always been considered cute – but not particularly sophisticated. However, research by a Newcastle University expert has shown their speech is far more advanced ...

Medical research

Study suggests new source of kidneys for transplant

Nearly 20 percent of kidneys that are recovered from deceased donors in the U.S. are refused for transplant due to factors ranging from scarring in small blood vessels of the kidney's filtering units to the organ going too ...

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Skeleton

In biology, a skeleton is a rigid framework that provides protection and structure in many types of animal, particularly those of the phylum Chordata and of the superphylum Ecdysozoa. Exoskeletons are external, as is typical of many invertebrates; they enclose the soft tissues and organs of the body. Exoskeletons may undergo periodic moulting as the animal grows. Endoskeletons are internal, as is typical of many vertebrates; they are usually surrounded by skin and musculature, though they often enclose vital organs. Endoskeletons are attachment points for musculature and act as leverage for movement, and in many animals contain marrow, which produces blood cells. Skeletons may or may not be mineralized - human skeletons are calcified, while shark skeletons are cartilaginous - and may be jointed for flexibility and motility or rigid for structural strength.

The average adult human skeleton has around 206 bones. These bones meet at joints, the majority of which are freely movable. The skeleton also contains cartilage for elasticity. Ligaments are strong strips of fibrous connective tissue that hold bones together at joints, thereby stabilizing the skeleton during movement.

This text uses material from Wikipedia, licensed under CC BY-SA