Which cytoskeletal element attaches to desmosomes to resist pulling forces exerted on the cell?

Intermediate filaments

Intermediate filaments are a part of the cytoskeleton, which extends all round the cytoplasm and inner nuclear membrane. Intermediate filaments are made from a large group of proteins which are arranged into five classes. Intermediate filaments attaches to desmosomes (intercellular junctions of epithelia and cardiac muscle) to resist mechanical stress exerted on the cell.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.