An electron micrograph shows a cell-to-cell adhesion consisting, in each cell, of an attachment plaque. The intercellular space is filled with electron-dense substance including transmembrane fibrillar structures. Specify this adhesion:

Answer options

1. Nexus
2. Desmosome
3. Adherens junction
4. Synapse
5. Tight junction

Explanation

Desmosomes form links between cells and provide a connection between intermediate filaments of the cell cytoskeletons of adjacent cells and its intercellular space is filled with electron-dense substances such as transmembrane fibrillar structures. This structure gives strength to tissues. Synapse allows passage of signal to another neuron. Tight junctions are two cells whose membranes join together. Nexus and adherens junctions are cell junctions.