Titlebook: Cryptorchidism; Ultrastructure of No Faruk Had?iselimovi? Book 1977 The Editor(s) (if applicable) and The Author(s), under exclusive licens

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Summary,1. The seminiferous tubule in children consists of Sertoli cells, gonocytes, spermatogonia and degenerating cells.

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Hilary Ockendon,John R. Ockendonrchidism is the most common endocrine gland disturbance. 2.7 % of all mature newborns are cryptorchid, while the percentage of cryptorchids among premature infants is as high as 31 %. (Scorrer and Farrington, 1971). The undescended testicle is or becomes permanently damaged as a result of its situat

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Hilary Ockendon,John R. Ockendonquality of the tissue (Hedinger, 1971 ; Hecker, 1971 ; Bodensky and Regele, 1973; Jendricke et al., 1973). According to these authors, the number of spermatogonia per tubule in cryptorchid boys is almost the same as in the controls. These results would appear to indicate that the decrease in the num

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Models for Linear Wave Propagation,evelopment of the testicle: the static phase, the growth phase and the maturation phase. St?dtler (1975) rejected the theory of development in phases, on the grounds that the seminiferous tubule showed a continuous increase in diameter and in the number of spermatogonia up to the eleventh year. His

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