<Dd> Release of the hormone prolactin is essential for lactation . </Dd> <Dl> <Dd> <Dl> <Dt> Stress </Dt> <Dd> Operating through the hypothalamic - pituitary - adrenal axis (HPA), the anterior pituitary gland has a large role in the neuroendocrine system's stress response . Stress induces a release of corticotropin - releasing hormone (CRH) and vasopressin from the hypothalamus, which activates the release of adrenocorticotropic hormone (ACTH) from the anterior pituitary gland . Then, this acts on the adrenal cortex to produce glucocorticoids such as cortisol . These glucocorticoids act back on the anterior pituitary gland and the hypothalamus with negative feedback to slow the production of CRH and ACTH . Increased cortisol under stress conditions can cause the following: metabolic effects (mobilization of glucose, fatty acids, and amino acids), bone re-absorption (calcium mobilization), activation of the sympathetic nervous system response (fight or flight), anti-inflammatory effects, and inhibition of reproduction / growth . When the anterior pituitary gland is removed (hypophysectomy) in rats, their avoidance learning mechanisms were slowed down, but injections of ACTH restored their performance . In addition, stress may delay the release of reproductive hormones such as luteinizing hormone (LH) and follicle - stimulating hormone (FSH). This shows that the anterior pituitary gland is involved in behavioral functions as well as being part of a larger pathway for stress responses . It is also known that (HPA) hormones are related to certain skin diseases and skin homeostasis . There is evidence linking hyperactivity of HPA hormones to stress - related skin diseases and skin tumors . </Dd> </Dl> </Dd> </Dl> <Dd> <Dl> <Dt> Stress </Dt> <Dd> Operating through the hypothalamic - pituitary - adrenal axis (HPA), the anterior pituitary gland has a large role in the neuroendocrine system's stress response . Stress induces a release of corticotropin - releasing hormone (CRH) and vasopressin from the hypothalamus, which activates the release of adrenocorticotropic hormone (ACTH) from the anterior pituitary gland . Then, this acts on the adrenal cortex to produce glucocorticoids such as cortisol . These glucocorticoids act back on the anterior pituitary gland and the hypothalamus with negative feedback to slow the production of CRH and ACTH . Increased cortisol under stress conditions can cause the following: metabolic effects (mobilization of glucose, fatty acids, and amino acids), bone re-absorption (calcium mobilization), activation of the sympathetic nervous system response (fight or flight), anti-inflammatory effects, and inhibition of reproduction / growth . When the anterior pituitary gland is removed (hypophysectomy) in rats, their avoidance learning mechanisms were slowed down, but injections of ACTH restored their performance . In addition, stress may delay the release of reproductive hormones such as luteinizing hormone (LH) and follicle - stimulating hormone (FSH). This shows that the anterior pituitary gland is involved in behavioral functions as well as being part of a larger pathway for stress responses . It is also known that (HPA) hormones are related to certain skin diseases and skin homeostasis . There is evidence linking hyperactivity of HPA hormones to stress - related skin diseases and skin tumors . </Dd> </Dl> </Dd> <Dl> <Dt> Stress </Dt> <Dd> Operating through the hypothalamic - pituitary - adrenal axis (HPA), the anterior pituitary gland has a large role in the neuroendocrine system's stress response . Stress induces a release of corticotropin - releasing hormone (CRH) and vasopressin from the hypothalamus, which activates the release of adrenocorticotropic hormone (ACTH) from the anterior pituitary gland . Then, this acts on the adrenal cortex to produce glucocorticoids such as cortisol . These glucocorticoids act back on the anterior pituitary gland and the hypothalamus with negative feedback to slow the production of CRH and ACTH . Increased cortisol under stress conditions can cause the following: metabolic effects (mobilization of glucose, fatty acids, and amino acids), bone re-absorption (calcium mobilization), activation of the sympathetic nervous system response (fight or flight), anti-inflammatory effects, and inhibition of reproduction / growth . When the anterior pituitary gland is removed (hypophysectomy) in rats, their avoidance learning mechanisms were slowed down, but injections of ACTH restored their performance . In addition, stress may delay the release of reproductive hormones such as luteinizing hormone (LH) and follicle - stimulating hormone (FSH). This shows that the anterior pituitary gland is involved in behavioral functions as well as being part of a larger pathway for stress responses . It is also known that (HPA) hormones are related to certain skin diseases and skin homeostasis . There is evidence linking hyperactivity of HPA hormones to stress - related skin diseases and skin tumors . </Dd> </Dl>

Hormone secreted by anterior lobe of pituitary gland