Which of the following junctional complexes are not seen in the marked region of the given slide?
A. Gap junction (communicating junctions)
B. Zonula occludens (tight junction)
C. Fascia adherens (adhering junction)
D. Macula adherens (desmosomes)
Ans. b. Zonula occludens
- The arrow in the given diagram is showing intercalated discs of cardiac muscle, which contains all types of cellular junctions except occluding tight junction (Zonula occludens). Cardiac muscle cells are connected by fascia adherens (the structural analog of zonula adherens), gap junctions & macula adherens.