The process in which a neuronal cell in a multicellular organism interprets signals produced by potential target cells, with which it may form synapses.

The establishment of the barrier between the perineurium of peripheral nerves and the vascular endothelium of endoneurial capillaries. The perineurium acts as a diffusion barrier, but ion permeability at the blood-nerve barrier is still higher than at the blood-brain barrier.

The cell cycle process in which genetic material, in the form of chromosomes, is organized and then physically separated and apportioned to two or more sets during the meiotic cell cycle in a female.

The assembly of a septate junction, an intercellular junction found in invertebrate epithelia that is characterized by a ladder like appearance in electron micrographs and thought to provide structural strength and to provide a barrier to diffusion of solutes through the intercellular space.

Ensuring that an epithelial tube in an open tracheal system is of the correct length and diameter. Tracheal tubes undergo highly regulated tube-size increases during development, expanding up to 40 times their initial size by the end of larval life. Tube size appears to be controlled by regulation of apical membrane expansion and secretion, rather than by changes in cell number, size or shape.

Ensuring that hairs in the imaginal disc-derived wing continue to point distally during development, following the initial establishment of wing hair polarity.

The process whose specific outcome is the progression of a spermatid over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell.

The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules that contributes to the shaping of the heart.

Any process that activates or increases the frequency, rate or extent of border follicle cell migration.

The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

A cell-cell junction that forms a continuous band around each cell in an epithelium; within the septate junction the membranes of adjacent cells maintain a constant distance of approximately 15 nm; found in arthropods.

An specialized occluding junction where three epithelial cells meet. It is composed of a branching network of sealing strands that run perpendicularly to the bicellular tight junction at the point of contact between three epithelial cells in an epithelial sheet.