To conceive a pregnancy within the body, sperm (cells produced by the male reproductive system) must travel through the vagina and into the fallopian tubes to fertilize a mature egg. During ...

How do behavior, morphology and physiology act in concert to improve a male's reproductive success - and why is there so much variation among outcomes within and between species? Aa Aa Aa ...

The ovary is the female gonad, which houses egg cells. Women are born with all the eggs they will ever have, and each egg is ...

The prostate gland, though small in size, plays a significant role in men’s health. Situated just below the bladder and in ...

Explore how semen cfDNA analysis revolutionizes male infertility diagnosis, offering a non-invasive, accurate method for identifying azoospermia and varicocele.

Male: By the tenth week of pregnancy, a fetus's gender is evident, and by week 14 sex organs have formed. Female: At 20 weeks, a female fetus has a fully developed reproductive system, replete ...

The function of the male reproductive system is to produce sperm cells - male gametes - and release them inside a female. The male reproductive system has two testes (singular: testis).

Fertilisation close fertilisationThe joining of a male and female gamete. happens if the egg cell meets and joins with a sperm cell in the oviduct. The fertilised egg attaches to the lining of the ...

such as phthalates," can also disrupt the development of the male reproductive system," Levine added, speaking with CNN. Even climate change and the environment could play a role. A 2022 study ...

U.S. Senator Roger Marshall, M.D. (R-Kansas) today introduced the  Defining Male and Female Act of 2025,  a bill codifying the legal definitions o ...