Which glands are specifically known as oil glands?

Sebaceous glands are specifically known as oil glands because they are responsible for producing sebum, an oily substance that lubricates and waterproofs the skin and hair. Sebum plays a crucial role in maintaining skin barrier function and preventing the skin from becoming dry or flaky. These glands are typically associated with hair follicles, where they release sebum to coat the hair and skin.

In contrast, sudoriferous glands, also known as sweat glands, are involved in thermoregulation and excreting waste through sweat, not oil production. Merocrine glands primarily release substances through a process called merocrine secretion, which is not oil-based, and are associated with sweat production. Apocrine glands also do not produce oil; instead, they produce a thicker, milky secretion that can contribute to body odor, often found in areas such as the armpits.

Understanding the function of different gland types helps clarify the specific role of sebaceous glands in the integumentary system, confirming their designation as oil glands.