Question

Mammary glands are modified
A. Salivary glands
B. Lacrimal glands
C. Sweat glands
D. Sebaceous glands

Answer 1

These glands are a type of exocrine gland that produces and secretes substances on the epithelial surface through a duct.

Complete answer:
Mammary glands are the organs that provide milk for the young in the female mammal. These exocrine glands are swollen and are typical of the mammals that give the class its name.
Salivary glands in mammals are exocrine glands that contain saliva through the duct system. Humans have three partnered main salivary glands and hundreds of smaller salivary glands.
The lacrimal glands are accompanied with almond-shaped exocrine glands for each eye. They are found in the upper lateral region of each orbit, in the lacrimal fossa of the orbit created by the frontal bone.
The mammary glands are modified sweat glands that are swollen at the time of birth. These glands are composed of hollow cavities, which are a few millimeters in size, and these cavities are called alveoli. Each alveolus is often surrounded by milk-secreting cuboid cells and myoepithelial cells.
Sebaceous gland is a small exocrine gland in the skin that opens into a hair follicle to release oily or waxy matter, termed sebum, that lubricates the hair and skin of mammals.

Thus, the correct answer is option C. i.e., Sweat glands.

Note: Mammary glands mature in various growth stages. They occur in both male and female during the developmental period, forming a rudimentary duct tree at birth. At this level, the growth of mammary gland depends on systemic hormones, but also on the control of paracrine contact between mesenchymal cells and neighbouring epithelial by parathyroid hormone-related proteins.