Which among the following is the actual site of sperm formation?
The testis is the male reproductive organ that has a highly coiled tube-like structure i.e., seminiferous tubules (ST). Seminiferous tubules are the specific location where meiosis takes place in spermatogonial cells leading to the formation of spermatozoa.
Vasa efferentia is an accessory duct that starts from the rete testis which transfers the sperm via epididymis (highly coiled) to vas deferens (another accessory duct) and finally to the ejaculatory ducts.
Vas deferens, also called ductus deferens, is a thick-walled tube in the male reproductive system that transports sperm cells from the epididymis, where the sperm are stored prior to ejaculation.
Ejaculatory ducts are formed by the union of vas deferens with the duct of the seminal vesicle (male accessory gland that contributes about 60% of the volume of semen).