Bridges

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Bridg·es

(brĭj′ĭz), Calvin Blackman 1889-1938.
American geneticist noted for his work on the chromosome theory of heredity and the mapping of chromosomes.

coalitions

; bridges osseous or cartilaginous links between adjacent foot bones; occurring congenitally, or induced by trauma, infection, joint disease or surgery; an initial fibrous syndesmosis is gradually replaced by cartilage, then ossifies, forming a synostosis; usually undetected until they become symptomatic at ossification (i.e. pain and restricting normal interosseous movement); see synchondrosis; tarsal coalition