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.

A long bone is covered externally with a sheath called the __________, whereas the marrow cavity is lined with the __________.

Any bony prominence is called a(n) ___________.