The development of mammary glands, one is not true: O a. First appear as bilateral bands of thickened endoderm called the mammary lines. • b. Mammary glands are modified sweat glands. • c. The mammary lines extend from the base of forelimb to the region of hindlimb. • d. Polythelia means accessory nipple. O e. Polymastia occurs when a remnant of the mammary line develops into a complete breast.
