During the Second Stage of Labor

question 10

Multiple Choice

During the second stage of labor,

• A)contractions of the uterus begin gradually and become more frequent and powerful.
• B)the baby is born.
• C)the cervix widens and thins to nothing.
• D)the placenta separates from the wall of the uterus and is delivered.

---

Definitions:

Valves

Structures within the heart and veins that maintain one-way blood flow, preventing backflow and ensuring efficient circulation.

Regulate Body Temperature

The physiological process by which an organism maintains its internal temperature within a certain range, despite external temperature changes.

Glomus

A peripheral chemoreceptor that is primarily involved in regulating respiratory activity in response to changes in blood gases.

Metarteriole

One of the small peripheral blood vessels that contain scattered groups of smooth muscle fibers in their walls; located between the arterioles and the true capillaries.