The lumen is the opening of the tube through which the "stuff" made by the gland exits. Some of that stuff (secretions) has hardened.
Concretions are calcified secretions seen in the glandular lumens of older men.
Glandular epithelium produces hormones.
The adrenal glands.
Epithelium made up of cells that produce secretions.
Glandular secretions are substances produced by special glands in the body and released into the bloodstream or excreted through ducts. These secretions can have various functions such as regulating bodily functions, providing protection, or aiding in digestion. Examples include hormones, enzymes, and mucus.
Epithelial Tissue
endocrine (where the secretions are put directly into the bloodstream) or exocrine (where the secretions are carried to the epithelial surfaces)
muscarinic (M3,M4)
A gland is a group of specialized epithelial cells that can produce secretions, such as hormones or enzymes, that are released into the bloodstream or a duct. Examples include sweat glands, salivary glands, and oil glands.
Glandular tissue is specialized for secretion. It contains glands that produce and release substances such as hormones, enzymes, saliva, or oils. These secretions serve various functions in the body, such as maintaining homeostasis, digestion, lubrication, or protection.
This is the IB answer key to this Question: secretory cells arranged in layer one cell thick; cells contain secretory vesicles; cells are grouped in acini; surrounded by basement membrane; cells adjacent to duct/lumen;
Sundews will eat worms if the worms are small enough to be held captive, killed and digested by the secretions from the sticky glandular hairs on the sundew leaf.