The secretory product of a gland is produced by its parenchyma, not its stroma.

What would you find in the marrow cavity of the diaphysis of an adult humerus?

Each hair grows in an oblique epithelial tube called a __________.

Blood Ca2+ deficiency stimulates __________ secretion, which leads to __________.

All cells in __________ epithelium reach the basement membrane, but only cells that reach the free surface have cilia.

Within compact bone, a central canal is found at the center of which structure?

What is the condition characterized by low levels of calcium in the blood?

Glands that have a branched duct are known as simple.

Mammary glands are modified __________ glands that develop within the female breasts.

Fibroblasts and protein fibers are associated with both __________ and __________. Select two answers.