Oxytocin Is a Hormone That Controls Many Responses and Functions

question 44

Multiple Choice

Oxytocin is a hormone that controls many responses and functions in the body,including uterine contractions during labor.The movement of the baby down the uterus and into the cervix activates stretch receptors,which stimulate the hypothalamus to release more oxytocin and increase the frequency of contractions.This is an example of

• A) a negative feedback loop.
• B) acclimatization.
• C) a positive feedback loop.
• D) vasoconstriction.
• E) osmoregulation.

---

Definitions:

Maternal Mortality Rate

A measure of the number of deaths of women due to pregnancy-related causes per 100,000 live births in a given year or place.

Live Births

The delivery of a baby who shows any sign of life, such as breathing or heartbeat, after separation from the mother's body.

Dilation

The process of widening or expanding an organ or opening in the body, often related to the eyes or blood vessels in response to various conditions.

Cervix

The lower, narrow part of the uterus that opens into the vagina, playing a key role in female reproductive health and childbirth.