Final answer:
The pituitary gland reaches its maximum size in childhood and may regulate the timing of puberty.
Step-by-step explanation:
The pituitary gland, which is located in the brain, reaches its maximum size in childhood and may regulate the timing of puberty. The pituitary gland produces multiple hormones, including follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which are responsible for the maturation and release of eggs in females and the production of sperm in males. These hormones play an important role in initiating puberty and regulating the reproductive system.