Viewed under a microscope, the nervous system is a large network of about 100 billion interlinked nerve cells, or
A) neurilemmas.
B) neuropeptides.
C) neurotransmitters.
D) neurons.

Question

Quizplus · Accepted Answer

The nervous system is indeed a vast network of about 100 billion nerve cells, which are correctly referred to as neurons. Neurons are the fundamental units of the brain and nervous system, responsible for receiving sensory input from the external world, sending motor commands to our muscles, and transforming and relaying the electrical signals at every step in between.

Viewed Under a Microscope, the Nervous System Is a Large