Final answer:
The action opposite to hormone stimulation is inhibition, and when hormones act in concert, it's called synergism. Hormones can be released through humoral stimuli, changes in blood components, or hormonal stimuli, where one hormone prompts the release of another. These mechanisms work together to maintain homeostasis.
Step-by-step explanation:
The action of hormones can involve stimulation or the opposite action which is inhibition, whereas when hormones work together it is called synergism. Hormones can interact in different ways, often categorized as synergistic, permissive, or antagonistic effects. A common example of a synergistic effect is the requirement of both FSH and estrogens for the maturation of female ova.
An example of an antagonistic effect is the way insulin and glucagon work in the pancreas to regulate blood glucose levels. Insulin stimulates glucose storage, while glucagon promotes glucose release into the blood. Hormones are released in response to various stimuli. Humoral stimuli refer to changes in blood levels of ions and nutrients, causing the release of hormones. In contrast, hormonal stimuli involve the release of hormones in response to other hormones.