Lesson 986 of 1524
Introduction to the Nervous System
Acetylcholine, epinephrine, and norepinephrine are the fundamental neurotransmitters within the autonomic nervous system.
Practice this chapterAcetylcholine, epinephrine, and norepinephrine are the fundamental neurotransmitters within the autonomic nervous system. The peripheral nervous system consists of the autonomic nervous system and the somatic nervous system.
The autonomic nervous system is further divided into the sympathetic nervous system (i.e., the fight or flight system) and the parasympathetic nervous system (i.e., the rest and digest system) Neurons are the fundamental units of the nervous system.
nervous system — system that includes the brain and spinal cord (the central nervous system) and an intricate network of nerves (the peripheral nervous system). autonomic nervous system — further divided into the sympathetic nervous system (i.e., the fight or flight system) and the parasympathetic nervous system (i.e., the rest and digest system). neurotransmitter — a chemical messenger that results in action, inaction, or inhibition of a neuron. neurons — the basic units of the nervous system.
Worked example
What does “nervous system” mean in Introduction to the Nervous System?
- 1Use the wording this chapter gives for nervous system.
- 2The book says: system that includes the brain and spinal cord (the central nervous system) and an intricate network of nerves (the peripheral nervous system).
- 3Do not use the meaning of autonomic nervous system. That term means further divided into the sympathetic nervous system (i.e., the fight or flight system) and the parasympathetic nervous system (i.e., the rest and digest system).
Result: system that includes the brain and spinal cord (the central nervous system) and an intricate network of nerves (the peripheral nervous system)
Why. That is the meaning this chapter gives for nervous system.
Do not swap nervous system and autonomic nervous system. nervous system means system that includes the brain and spinal cord (the central nervous system) and an intricate network of nerves (the peripheral nervous system). autonomic nervous system means further divided into the sympathetic nervous system (i.e., the fight or flight system) and the parasympathetic nervous system (i.e., the rest and digest system).
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.