Memory Alpha   36,773pages on this wiki Revision as of 15:19,
November 26, 2010 by SulfBot (Talk | contribs)  The brak'lul is
a Klingon term for a characteristic redundancy in Klingon
physiology. All vital bodily functions are protected by a
redundant organ or system. Klingons possess two livers, an
eight-chambered heart, 23 ribs, two stomachs and a double-lined
neural pia mater. This allows Klingons to survive injuries that
normally kill other humanoids. Some Federation scientists, such
as Doctor Toby Russell, believed it to be a good design in
practice, but also noted that the extra redundancy meant there
was also much more chance for a system to fail or cause
problems.  The redundancies due to the brak'lul helped
Lieutenant Worf survive in 2368 after a risky surgery involving
technology known as the genitronic replicator. (TNG: "Ethics")
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