Gastrointestinal: Adjective referring collectively to the stomach and small and large intestines. The commonly used abbreviation for gastrointestinal is GI. (Outside of medicine, GI can also stand for galvanized iron, general issue or government issue-as in GI Joe).
Before the extracellular matrix is calcified, the tissue is called osteoid (bone-like) tissue. When the concentrations of calcium and phosphate ions rise high enough, they are deposited into the extracellular matrix, and the bone calcifies.
The ethmoid bone is one of the bones that make up the orbit of the eye.he ethmoid articulates with fifteen bones: 1  four of the neurocraniumâthe frontal, and the sphenoid (at the sphenoidal body and at the sphenoidal conchae). 2  eleven of the viscerocraniumâ, two nasal bones, two maxillae, two lacrimals, two palatines, two inferior nasal conchae, and the vomer.