Sentence examples for base of the testes from inspiring English sources

In mutant males, sperm morphogenesis appears normal, with elongated, individualized and coiled spermiogenic cysts accumulating at the base of the testes.

Transmission electron micrographs of cross-sections through pre and post-individualized cysts (through the base of the testes) do not show any obvious defect in the individualization process nor the axoneme structure (Figure 6).

Figure 7, A and B confirms that the elongated spermatids in triple knockout males accumulate in the base of the testes, and they appear disordered or improperly coiled.

Second, we observed an age-dependent gradual expansion or swelling at the base of the testes where they join the seminal vesicles, in which elongated spermatids appeared improperly coiled.

Triple knockout males can make functional sperm but most of it accumulates at the base of the testes; also the sperm tails show signs of a surface abnormality along the length of the axoneme.

First, by counting mature individualization complexes (clearly distinct in the upper length of the testis as opposed to the cluster of maturing complexes located at the base of testes near the seminal vesicles), we observed a difference in the number of mature individualization complexes as the flies aged.

Instead, an extensive mass of coiled sperm bundles accumulates at the base of Ntl mutant testes (Fig. 4 B, D, F, H asterisks). Presumably because of the great physical complexity of the sperm individualization process [53], [54], a large proportion of male-sterile mutations produce elongated cysts that fail to be matured into individual sperm.

Within a few weeks following birth, testosterone secretion ceases, and the cells within the testes remain undeveloped during early childhood; during adolescence, gonadotropic hormones from the pituitary gland at the base of the brain stimulate the development of tissue, and the testes become capable of producing sperm and androgens.

In some fetuses there occurs, for unknown reasons, regression and disappearance of the testes, known as the "vanishing testes syndrome".

She had, in fact, undergone an orchiectomy, or removal of the testes, a couple of months prior.

The Chinese have published several studies in which they tried to sterilize men by concentrated microwave exposure of the testes.