Certified Breastfeeding Counselor (CBC) 2025 – 400 Free Practice Questions to Pass the Exam

Parenchyma refers to the functional tissue of an organ. In the context of the breast, parenchyma comprises the ductal and lobular-alveolar structures. This is the correct answer because the breast tissue responsible for milk production and transport is primarily composed of these structures.

Option A is incorrect because 'Strom' is a misspelling; the correct term should be stroma, which refers to the supportive tissue in the breast composed of connective tissue (fat, vascular, nerve, lymphatic). This type of tissue provides structural support but is not directly involved in milk production.

Option C is incorrect as the breast tissue does not contain muscle and bone as its primary components. Muscle and bone are not structurally involved in the production or transportation of breast milk.

Option D is incorrect because the stroma of the breast does not consist of muscle and bone. Muscle and bone are not typical components of breast tissue related to lactation function.