| reciprocal g.’s |
complementary g's.
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| reciprocal i. |
the inhibition of one group of muscles on excitation of their antagonists, a phenomenon resulting from reciprocal innervation (q.v.).
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| reciprocal r. |
a cardiac dysrhythmia established by a sustained reentrant mechanism in which impulses traveling back toward the atria through the atrioventricular junction also travel forward to reexcite the ventricles; thus each cycle contains a reciprocal beat, with two ventricular contractions.
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| reciprocal t. |
the complete exchange of fragments between two broken nonhomologous chromosomes, one part of one uniting with part of the other, with no fragments left over. Abbreviated rcp. See Plate 1.
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| reciprocating r. |
a cardiac dysrhythmia in which an impulse initiated in the atrioventricular node travels both up toward the atria and down toward the ventricles, followed by cycles of bidirectional propagation of the impulse that alternately initiate from the impulses traveling up toward the atria and those traveling down toward the ventricles.
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