Which cell type is NOT considered excitable?

Hepatocytes are the correct choice as they are not considered excitable cells. Excitable cells are those that can generate and propagate action potentials, responding quickly to stimuli. This characteristic is crucial for the function of cells such as cardiac muscle, smooth muscle, and nerve cells, all of which have specialized mechanisms for electrical excitability and communication.

Hepatocytes, on the other hand, are liver cells responsible for various metabolic processes, such as detoxification, protein synthesis, and the production of biochemicals necessary for digestion. They do not have the ability to generate action potentials; instead, they communicate through chemical signaling and metabolic pathways, which are essential for their functions but do not involve the rapid electrical excitability characteristic of nerve and muscle tissues.