Mammals are a group of animals characterized by (in females) the presence of mammary glands. Mammals are a group of animals; mammary glands are a body part.
Mammary gland
Formation of milk in the mammary gland of a mammal.
mammary gland
The Platypus releases milk from ducks in its abdomen.
"Mammal" comes from mammary gland. All animals that produce milk are mammals.
Mammary gland
Mammary gland
Mammary glands are the source of milk production in female (and some male) mammals
mammary alveolus
Mammals have mammary glands like whales
Do you mean, "Where is lymph from mammary glands collected?" Most of the lymph in a human mammary gland travels, ultimately, to the apical axillary lymph nodes.
The mammary gland is an exocrine gland. It has ducts through which milk is secreted.