Question

Which junction tether cytoskeleton filaments inside cell?

Answer 1

Answer is - Anchoring junction

Cell junctions may be classified into 3 functional groups. They are:

1. Occluding junctions

2. Anchoring junctions                                                                                      

3. Communicating junctions

Anchoring junctions connect the cytoskeleton of a cell to the extracellular matrix or the cytoskeleton of its neighbours. The lipid bilayer is flimsy. It is not possible for it to transmit large forces from cell to cell or from cell to extracellular matrix on its own. This problem is solved by anchoring junctions. They form strong membrane-spanning structures which are tethered inside the cell to the cytoskeleton's tension-bearing filaments. 

Answer 2

The correct answer is - Anchoring junctions.

The cytoskeleton is usually anchored within a spectrin mesh. These anchoring junctions are tethered to the cytoskeletal filaments and they transmit the stress.

These anchoring junctions include the desmosomes and also the adherens junctions, apart from the cell-to-cell matrix adhesions.