Q: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Question: Indicate which of the following statements about vascular smooth muscle is FALSE:
Options: <0> Its main function is to maintain the tone of the vessels. <1> It is contracted by an increase in the intracellular calcium concentration. <2> Its contraction is controlled by the binding of calcium to troponin. <3> Its tone is controlled by the autonomic nervous system. <4> The endothelium modulates vascular smooth muscle tone.
A:
medicine