Are there any physiological adaptations related to sperm competition in humans? What is the role of the immune system in the male reproductive tract?

Fertility is being able to get pregnant or to make someone pregnant (conceive a child). This information will help you to: Understand how Crohn's or Colitis may ... Apr 17, 2023 ... When they knocked out the gene in mice, it created infertility only in the males, impacting their sperm count, movement and shape. The ... Nov 18, 2021 ... To conceive a child, a man's sperm must combine with a woman's egg. The testicles make and store sperm, which are ejaculated by the penis to ... ... information. When gametes (egg or sperm) are made, each typically receives one copy of the sex chromosomes. A female can only give one of her two X ... Your GP may refer the male partner to see a urology specialist who looks after male fertility issues. Your female partner will be referred to see a ... Mar 8, 2023 ... Ejaculate fluid (cum) passes through the urethra before and during ejaculation. This ejaculate fluid contains sperm produced in the testes ... About half of couples unable to have children have a male infertility problem. The test may also be used after a vasectomy to make sure there are no sperm in ... The urethra carries both urine and sperm. Seminal vesicles — these are 2 small glands above the prostate gland that make up much of the fluid in semen. Brain — ... FSH is the hormonal signal that the pituitary gland uses to tell the spermatogenic cells within the testicles to make sperm. As discussed previously, a normal ... These are two oval-shaped organs that make male sex cells called sperm after puberty. ... Note: All information on Nemours® KidsHealth® is for educational ...