DEAR DOCTOR K: A friend told me that we have no muscles in our fingers. Is that true? If so, then how do our fingers do all that they do? DEAR READER: It is true, but our hands work wonderfully anyway ...
A new study reveals that muscle cells fuse together during development by poking "fingers" into each other to help break down the membranes separating them. The study appears online on November 22, ...
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