Read the following statements regarding the anatomy of the human mammary gland: A. Glandular tissue of each breast is divided into 15-20 mammary lobes. B. Cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli. C. The tubules of each lobe join to form a mammary duct. D. Several mammary ampullae join to form a wider lactiferous duct. How many of the above statements are correct?

Step-by-step solution

According to NCERT, the glandular tissue of each breast is divided into 15-20 mammary lobes (Statement A is correct). The cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli (Statement B is correct). The alveoli open into mammary tubules, and the tubules of each lobe join to form a mammary duct (Statement C is correct). Several mammary ducts join to form a wider mammary ampulla, which is connected to the lactiferous duct. Statement D incorrectly states that several ampullae join to fo