What are the three physiological actions performed by neurons? Select all that apply.

Neurons are specialized cells that perform critical functions in the nervous system, and they achieve these through several physiological actions. One of these actions is the ability to respond to various stimuli, which is fundamental to the overall function of a neuron. This response involves detecting changes in the environment—whether internal or external—and translating those changes into signals that can be interpreted by the nervous system. This action is crucial for various processes, such as reflexes, sensation, and communication among neurons.

In addition to responding to stimuli, neurons also conduct electrical impulses, which is the second essential physiological action they perform. This conduction involves generating action potentials and transmitting information rapidly across long distances within the nervous system. This electrical signaling allows for the quick propagation of messages that can coordinate bodily functions and responses.

Lastly, allowing inward flow of sodium and changing membrane permeability are related to the processes of generating and propagating action potentials, which are vital for neuronal communication. These actions work in tandem with the other two physiological functions to ensure that neurons operate effectively within the nervous system.

Thus, the ability of neurons to respond to stimuli is critical because it initiates the process of communication and enables the nervous system to react to changes in the environment.