Which of the following statements wrongly represents the nature of smooth muscle?

**Answer:** The statement that wrongly represents the nature of smooth muscle is: “Communication among the cells is performed by intercalated discs.”

**Why this statement is incorrect:**
Smooth muscle cells are connected to each other mainly by *gap junctions*, which allow direct electrical and chemical coupling for coordinated contraction. Intercalated discs are specialized junctional complexes *exclusive to cardiac muscle* and contain desmosomes and fascia adherens that provide mechanical strength and rapid signal transmission between cardiac myocytes. Since smooth muscle does not possess intercalated discs, the statement is false.

**Why the other statements are correct:**
1. *“These muscles are present in the wall of blood vessels.”* – Smooth muscle forms the tunica media of arteries, arterioles, veins and some larger veins, regulating vessel diameter and blood pressure.
2. *“These muscle have no striations.”* – Unlike skeletal and cardiac muscle, smooth muscle fibers lack the regular sarcomere arrangement, so they appear non‑striated under the microscope.
3. *“They are involuntary muscles.”* – Smooth muscle activity is under autonomic (involuntary) control, not under conscious voluntary control.

Therefore, the only incorrectly described feature of smooth muscle is the claim about intercalated discs.