AP PSYCHOLOGY

Detailed explanation-1: -Although negative feedback is more common, some hormone systems are controlled by positive feedback mechanisms, in which a target gland hormone acts back on the hypothalamus and/or pituitary to increase the release of hormones that stimulate the secretion of the target gland hormone.

Detailed explanation-2: -The release of oxytocin from the posterior pituitary gland during labor is an example of positive feedback mechanism.

Detailed explanation-3: -Positive and negative feedback mechanisms are two different types of feedback mechanisms. Positive feedback stimulates and increases hormone secretion. Negative feedback stops and inhibits the hormone from being produced.

Detailed explanation-4: -Positive feedback produces a response that continues to increase in order to produce the desired effect. In this mechanism, the activity of a hormone signals the system to produce and release more of the hormone. An example of a positive feedback mechanism is the release and response of oxytocin during childbirth.

Detailed explanation-5: -Neural Stimuli Here, neuronal signaling from the sympathetic nervous system directly stimulates the adrenal medulla to release the hormones epinephrine and norepinephrine in response to stress.