MICROANATOMY

Detailed explanation-1: -The release of oxytocin from the posterior pituitary gland during labor is an example of positive feedback mechanism. Oxytocin stimulates the muscle contractions that push the baby through the birth canal. The release of oxytocin result in stronger or augmented contractions during labor.

Detailed explanation-2: -Negative feedback keeps the concentration of a hormone within a narrow range. But oxytocin regulation involve positive feedback loops. The release of oxytocin feeds back to increase more oxytocin production and release.

Detailed explanation-3: -Interestingly, we also found that NO released from NP suppressed the release of oxytocin from the neural lobe, suggesting that there is a negative feedback mechanism by which oxytocin stimulates the release of NO, which in turn, acts back to inhibit oxytocin release.

Detailed explanation-4: -Which of the following is an example of positive feedback? Explanation: The only example of a positive feedback loop is labor contractions, since in that case, the output increases the original stimulus.

Detailed explanation-5: -Some examples of positive feedback are contractions in child birth and the ripening of fruit; negative feedback examples include the regulation of blood glucose levels and osmoregulation.