Sperm Travel Essay <Tab/> <Tab/>When puberty begins in a male, the hypothalamus starts to produce a few different kinds of hormones that interact with the pituitary gland, which influences many physiological processes of the body. The hypothalamus then secretes a hormone that causes the pituitary gland to release other hormones. Those other two hormones are called Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). After FSH …showed first 75 words of 921 total…

…showed last 75 words of 921 total…villi begin to from off of the chorion and grow into the uterine wall, which then forms the placenta. The placenta is what delivers nutrients to the embryo. By the eighth week of pregnancy, the embryo is referred to as a fetus. Most of the fetus's body growth occurs in the second trimester. The fetus starts to move around the seventh month, and its eyes open around the eighth month. The baby is soon born.