LH - GCSE Biology Definition

"LH" stands for luteinising hormone, which is produced by the pituitary gland in the brain. It plays an important role in the reproductive system. In females, LH is responsible for triggering the release of an egg from the ovary, a process called ovulation. In males, it stimulates the production of testosterone, which is necessary for the production of sperm. LH works alongside other hormones, like follicle-stimulating hormone (FSH), to help control the menstrual cycle in females and maintain healthy reproductive functions in males. Understanding LH is important for studying how the body manages reproduction and fertility.