Changes

The mammary gland is a modified sweat gland that nourishes the young.  It consists of the mamma and the teat.  Undeveloped in both the male and female at birth, the female mammary gland begins to develop as a secondary sex characteristic at puberty.  With the birth of the first young, and first lactation, the mammary gland attains its full size and function.  When suckling by the young stops, milk production ceases and the gland regresses.  Shortly before the next and subsequent parturitions, the gland is stimulated by hormonal changes to produce milk.

The mammary gland is a modified sweat gland that nourishes the young.  It consists of the mamma and the teat.  Undeveloped in both the male and female at birth, the female mammary gland begins to develop as a secondary sex characteristic at puberty.  With the birth of the first young, and first lactation, the mammary gland attains its full size and function.  When suckling by the young stops, milk production ceases and the gland regresses.  Shortly before the next and subsequent parturitions, the gland is stimulated by hormonal changes to produce milk.

 

== Development of the Mammary Gland (prenatal mammogenesis) ==

== Development of the Mammary Gland (prenatal mammogenesis) ==