One contribution that helped scientists to understand how the nervous system developed and worked was the realization that the body created and used
A) specific nerve cells called glial cells
B) an intricate system of sensory nerve endings
C) the primary motor cortex to control motor movement
D) electrical activity in its basic processes

Question

Quizplus · Accepted Answer

The discovery of electrical activity in the nervous system, such as action potentials and synaptic transmission, was fundamental in the understanding of how the nervous system developed and worked. This knowledge paved the way for the development of techniques, such as EEG and electrophysiology, that allowed scientists to study the function of the nervous system at a cellular and network level. Glial cells and sensory nerve endings were also important components of the nervous system, but their roles were discovered later than the understanding of electrical activity. The primary motor cortex is important in the control of motor movement, but its discovery did not contribute significantly to the initial understanding of the nervous system.

One Contribution That Helped Scientists to Understand How the Nervous