Final answer:
In hormonal stimuli, the release of one hormone triggers the release of another, creating a system of regulation through inter-gland communication that often involves a negative feedback loop to maintain balance.
Step-by-step explanation:
The main thing that happens in hormonal stimuli is the release of hormones in response to other hormones. This inter-gland communication is crucial for maintaining the body's internal balance and coordinating various physiological processes. For instance, the hypothalamus produces releasing hormones that prompt the anterior pituitary gland to secrete its own hormones such as the thyroid-stimulating hormone (TSH).
TSH in turn stimulates the thyroid gland to produce thyroid hormones (T3 and T4), which then affect various body functions such as metabolism. A feedback mechanism is also involved; when the levels of T3 and T4 in the bloodstream rise, they signal the pituitary and hypothalamus to reduce the release of stimulating hormones, thus exhibiting a negative feedback loop.