siemnepõiekesed

siemnepõiekesed are small, paired organs found in male mammals, located at the base of the penis. They are considered part of the accessory reproductive glands. These structures are responsible for producing a fluid that contributes to semen. This fluid contains fructose, which provides energy for sperm, and prostaglandins, which can stimulate contractions in the female reproductive tract to aid sperm transport. The size and appearance of siemnepõiekesed can vary between species. They are innervated and their secretions are influenced by hormones, particularly androgens. During sexual arousal and ejaculation, the muscles surrounding the siemnepõiekesed contract, expelling their contents into the urethra to mix with sperm from the testes and secretions from other accessory glands. Their precise role in fertility and reproductive success is a subject of ongoing research in comparative anatomy and reproductive physiology.