Sertoli cells have receptors for follicle stimulating hormone (FSH) and testosterone which are the main hormonal regulators of spermatogenesis. Hormones such as testosterone, FSH and luteinizing hormone (LH) are known to influence the germ cell fate. Their removal induces germ cell apoptosis.
In very basic terms, ISO is the level of sensitivity of your camera to available light. The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your camera. The component within your camera that can change sensitivity is called âimage sensorâ or simply âsensorâ.
ISO means In Search Of. Example use of ISO on Craigslist. ISO is an acronym often used on craigslist by people who are searching for something specific that theyâd like to purchase. The ISO meaning is âin search ofâ and users will often use it in post titles or descriptions, or in posts themselves.