Question

heart muscle cells would tend to separate without ________.
stroma
intercalated discs
flana
myofilaments

Explanation:

Intercalated discs are structures in heart muscle cells that contain gap junctions and desmosomes. Gap junctions allow for electrical communication between cells, enabling coordinated contraction, while desmosomes provide strong cell - to - cell adhesion. Without intercalated discs, heart muscle cells would not be able to stay together and function as a coordinated unit. Stroma is connective tissue in organs (not specific to heart muscle cell adhesion). "Flana" is not a relevant biological structure in this context. Myofilaments (actin and myosin) are involved in muscle contraction (sliding filament mechanism) but not in cell - to - cell adhesion.

Answer:

intercalated discs