One symptom often triggers the other. Fortunately, abdominal bloating and nausea usually resolve themselves with time. Examples of conditions that cause abdominal bloating and nausea include: 1  acid reflux. 2  constipation. 3  gastroesophageal reflux disease (GERD). 4  gastrointestinal blockage. 5  gastroparesis. 6  giardiasis (an infection from an intestinal parasite).
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy.
Human Anatomy & Physiology. characteristics at puberty. 2) Storehouse for the hormones produced by the hypothalamus of the brain. 3) Produces the hormones that direct the production of the secondary male sex characteristics. 4) Produce steroid hormones and glucocorticoids and mineralocorticoids.