Prostaglandins act in the reproductive system and in the immune system. One of the targets of PGs is smooth muscle. Aspirin inhibits prostaglandin synthesis. Below, I have listed the major hormones. You should learn the function of the hormones, their site of action, their site of production, and what regulates their stimulus.
Several organs are specialized for endocrine function.
A view of the pituitary gland. The ovaries and uterus are major hormonal targets for women in their reproductive years. Here is a normal uterus with ovaries and Fallopian tubes intact. Here is a view of a second trimester uterus with fetus. Here is a view of a third trimester uterus with fetus.