sexine

The outer, sculptured layer of the exine, which lies above the nexine.

extracellular matrix of synaptic cleft

The portion of the extracellular matrix that lies within the synaptic cleft.

cortical cytoskeleton

The portion of the cytoskeleton that lies just beneath the plasma membrane.

perisynaptic extracellular matrix

The portion of the extracellular matrix that lies within the perisynaptic space.

cortical microtubule cytoskeleton

The portion of the microtubule cytoskeleton that lies just beneath the plasma membrane.

nexine

The inner, non-sculptured part of the exine which lies below the sexine.

dinoflagellate cingulum

A cell surface furrow that wraps around a dinoflagellate cell; the transverse flagellum lies in it.

vitelline envelope

A glycoprotein-based structure that lies outside the plasma membrane and surrounds the egg before fertilization.

basal cortex

The region that lies just beneath the plasma membrane on the basal edge of a cell.

apical cortex

The region that lies just beneath the plasma membrane on the apical edge of a cell.