News tagged with mechanism

Tension triggers muscle building

Skeletal muscles are built from small contractile units, the sarcomeres. Many of these sarcomeres are connected in a well-ordered series to form myofibrils that span from one muscle end to the other. Contractions ...

Mar 14, 2014
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Dr. David Magnus on understanding brain death

When is a person considered dead? Two recent cases have thrust the issue of "brain death" back into the national conversation. In Texas, the brain-dead Marlise Muñoz was connected to machines that kept her other vital organs ...

Feb 06, 2014
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