What is a flange in the context of breast pumps?

• A. The part that collects milk
• B. The part that fits over the nipple to create suction
• C. The part for adjusting suction strength
• D. The part that connects to the pump motor

Answer: (B)

In the context of breast pumps, a flange is the component that fits over the nipple and areola to create an airtight seal, allowing suction to be effectively generated. This formation is crucial because it enables the pump to draw milk from the breast through a combination of suction and compression, mimicking the natural nursing process. The flange's design and size can significantly influence the comfort and efficiency of the pumping experience, as a proper fit is essential to ensure adequate milk expression without causing pain or discomfort.

While other components of the breast pump play important roles, such as collecting milk or connecting to the pump motor, it is the flange that directly interacts with the breast to facilitate the suction necessary for milk extraction.