Question

When a woman goes into labor during childbirth, the cervix expands which sends a signal to the pituitary gland to release oxytocin which results in more contractions which results in more oxytocin being released and so on. What is happening during childbirth?
A) A negative feedback loop.
B) Cell regulation
C) A positive feedback loop.
D)A neutral feedback loop

Answer 1

Answer;

C) A positive feedback loop.

Explanation;

-Biological systems operate on a mechanism of inputs and outputs, each caused by and causing a certain event. A feedback loop is a biological occurrence in which the output of a system amplifies the system (positive feedback) or inhibits the system (negative feedback)

-Oxytocin is controlled by a positive feedback mechanism where release of the hormone causes an action which stimulates more of its own release. When contraction of the uterus starts, for example, oxytocin is released which stimulates more contractions and more oxytocin to be released.

Answer 2

C) A POSITIVE FEEDBACK IS THE CORRECT ANSWER. WHEN CONTRACTIONS HAPPENIT IS TO HELP GET THE BABY OUT AND TO LET YOU KNOW WHEN THE BABY IS COMING SO WHEN CONTRACTIONS START IT MEANS YOU ARE GOING INTO LABER