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Latest Hanna A. Jensen Stories

2014-04-30 11:09:57

Children with a heart defect called transposition of great arteries (TGA) are born with the two major blood vessels (aorta and the main lung artery) arising from the wrong sides of the heart.


Word of the Day
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
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