ANATOMY

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.

Detailed explanation-2: -3 – Positive Feedback Loop: Normal childbirth is driven by a positive feedback loop. A positive feedback loop results in a change in the body’s status, rather than a return to homeostasis. The first contractions of labor (the stimulus) push the baby toward the cervix (the lowest part of the uterus).

Detailed explanation-3: -The positive feedback cycle is maintained until the baby stops suckling. The production of oxytocin during childbirth is also self-limiting; release of the hormone is stopped once the baby is delivered.

Detailed explanation-4: -One example of biological positive feedback is at the onset of contractions in childbirth. When contraction occurs, oxytocin is released into the body stimulating more contractions. Thus, the result is an increased amplitude and frequency of contractions. Another example is during the process of blood clotting.

Detailed explanation-5: -Example 1: Fruit Ripening. Example 2: Childbirth. Example 3: Blood Clotting. Example 1: Temperature Regulation. Example 2: Blood Pressure Regulation (Baroreflex) Example 3: Osmoregulation. Looking for Biology practice? 01-Mar-2022