Introduction to the Nervous System and Neurons

The video provides an overview of the nervous system, explaining its components like the brain, spinal cord, and neurons. It details the roles of sensory receptors, sensory neurons, relay neurons, and motor neurons, highlighting their functions and structures. The video also covers synapses and neurotransmission, emphasizing the direction of impulses and the role of neurotransmitters. Key features of the nervous system are summarized, focusing on its ability to help the body sense and respond to changes.

What is the main function of the nervous system?

Describe the role of sensory receptors in the nervous system.

Explain the function of the myelin sheath in neurons.

What is the significance of the direction of impulse flow in neurons?

What distinguishes sensory neurons from relay neurons?

What happens at a synapse when an impulse reaches an axon terminal?

How do neurotransmitters facilitate communication between neurons?