Eponychium Definition It refers to a tiny epithelium band that stretches onto the nail base from the posterior section of the nail. It is actually the terminal point of the proximal fold that rolls back to cast off an epidermal skin layer over a nail plate that has been ...

Middle temporal gyrus Definition It refers to a gyrus, meaning an elevation or a convex fold, on the temporal lobe in the surface of the brain. This structure should not be confused with medial temporal lobe. It is abbreviated as MTG or even GTm. GTm refers to the fact that ...

Zona reticularis Definition It is the innermost of the three tissue layers of the cortex in the adrenal gland. It comprises of cylindrical masses of epithelial cells that are arranged in an irregular, netlike fashion. The other two adrenal cortex layers, lying above this layer, are Zona glomerulosa and ...