What fibrous membranes support the lobes of the breast?

Cooper's ligaments are connective tissue structures that provide support for the lobes of the breast. These ligaments help maintain the structural integrity and shape of the breast by anchoring the breast tissue to the underlying skin and the pectoral fascia. They run between the lobes and helps keep the breast tissue from sagging, contributing to an aesthetically pleasing appearance.

The significance of Cooper's ligaments extends beyond mere support; they also play a role in the overall architecture of the breast, creating a framework that allows for proper functioning and positioning of the lobules and ducts. These ligaments are crucial, especially during movements, as they facilitate the dynamic nature of the breast tissue while maintaining its structure.

In contrast, superficial fascia primarily provides a layer of connective tissue beneath the skin rather than directly supporting breast lobes. Breast lobes refer to the glandular tissues themselves. Support sheathes is a less common terminology and does not accurately describe the specific structures associated with the breast's architecture. Thus, the clear role of Cooper's ligaments in supporting the lobes underscores their importance in breast anatomy.