Glands are usually composed by one or more layers of cells of columnar or cuboidal cells which are specialized to secrete substances.True false question.TrueFalse

Appreciate that the appearance of a gland reflects the organisation of its secretory cells &/or units & ducts, & the composition of the secretions produced

Glands that secrete substances onto a free surface (like sweat glands and oil glands) are considered glands.

A gland is any organ that secretes

Glands that release their secretions into ducts rather than into the blood are called glands.

The type of gland that secretes its products into ducts that open onto surfaces, such as a gland in the lining of the digestive tract, is called ______ gland.