Note the size of the nerve cell (neuron). How does it compare to the smooth muscle cell?

The size of a nerve cell or neuron can vary, but on average, it is relatively large compared to a smooth muscle cell. Neurons are typically elongated cells with long extensions like dendrites and axons. They can range in size from a few micrometers up to 100 micrometers or more in length.

On the other hand, smooth muscle cells are generally smaller in size. They are spindle-shaped or elongated cells that make up the walls of various organs and blood vessels. Smooth muscle cells are typically around 50-100 micrometers in length and have a diameter of 2-10 micrometers.

Overall, nerve cells tend to be larger and more complex due to their specialized functions in transmitting electrical signals, while smooth muscle cells are relatively smaller and simpler in structure, primarily designed for contraction and relaxation of smooth muscle tissue.