2. A model of the action of oxytocin in the bloodstream during labor and delivery is shown below.
If the mechanism is described by positive feedback, what description best fits this model?
a. The presence of oxytocin will block the impulses sent to the brain by the pressure on the cervix.
b. The oxytocin released by the pituitary will result in the immediate passage of the baby through the birth canal.
c. The presence of oxytocin causes the uterus to contract, which results in a greater force of the baby’s head on the cervix.
d.The contraction of the uterus causes a decrease in oxytocin which signals further contraction of the uterus.
Rationalization:
Please include a rationalization for the answer choice you chose.
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Ответ:
2,false
3, false
4,true
5,false