Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. The increasing labor contractions of childbirth are an example of which type of regulation?
A) a bioinformatic system
B) positive feedback
C) negative feedback
D) feedback inhibition
E) enzymatic catalysis

Question

Quizplus · Accepted Answer

The increasing labor contractions of childbirth are an example of positive feedback, where the output (contractions) increases the stimulus (stretching of the cervix), leading to a further increase in the output (more contractions). Negative feedback would cause the opposite effect, inhibiting contractions to maintain the body's homeostasis. Bioinformatic system, feedback inhibition, and enzymatic catalysis are not relevant to the regulation of labor contractions.

Once Labor Begins in Childbirth, Contractions Increase in Intensity and Frequency