New research has mapped the cell types that specialise to form reproductive organs in both sexes, identifying key genes and signals that drive this process. The findings offer important insights into ...

This study describes the histology and histochemistry of the male reproductive system in Callinectes ornatus, comparing juvenile and adult developmental stages. We also analyzed changes in the ...

The male reproductive system includes organs like the penis and scrotum that function in urination and reproduction. Sex hormones like testosterone are vital for puberty, sexual function, and sperm ...

In summer 2024, I received a Summer Undergraduate Research Fellowship (SURF) from the Hamel Undergraduate Research Center to pursue a project in Dr. MacManes’s genomics and physiology lab, which ...

A growing body of evidence now shows that cannabis is destructive to male fertility. By Alexander Nazaryan About a decade ago, patients started coming to Dr. Alexander Pastuszak with a question that ...

Animated expanding radio waves over a red coloured male reproductive system diagram on a human anatomy illustration. Royalty-free licenses let you pay once to use copyrighted images and video clips in ...

Guideline updates include revised thresholds for Y-chromosome microdeletion testing and recommendations for the use of testicular sperm in nonazoospermic males. The American Urological Association ...

I Programa de Pós-Graduação em Entomologia, Depto de Biologia Animal; vialbano@gmail.com; janesmoreira@yahoo.com.br II Depto de Biologia Geral. Univ Federal de Viçosa (UFV), MG, Brasil; caneves@ufv.br ...

The following outlines aspects of the female reproductive system, including the internal and external organs, the menstrual cycle, the egg, and reproductive hormones. The menstrual cycle is a monthly ...

BUFFALO, N.Y. — Despite their formidable bodies, male gorillas are lacking in one particular area of their anatomy. They have the smallest penises and testes of all apes, and produce a low amount of ...