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Updated: Aug 12, 2026
03:28
Sperm Collection of Differential Quality Using Density Gradient Centrifugation
Published on: November 29, 2018
Testis biopsy for infertility: a comparative assessment of current score methods for the evaluation of the
International Journal of Fertility
|January 1, 1985
Abstract:
The accuracy and usefulness of the score classifications most currently in use to assess testicular biopsies for infertility were comparatively evaluated in 40 consecutive specimens of the years 1979-1982. Our results suggested that score methods should be rejected and a comprehensive estimate of the morphological characteristics of the testis should be given, if no specific cause of damage can be recognized.
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01:27Testes: Histology
A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
The spermatogenic cells, responsible for producing sperm, are...
01:23Infertility in Males
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...