CNS vs. PNS, neurons and synapses, the brain's 5 parts, the meninges, and the neurological diseases you'll actually see referenced in practice.
A quick-reference list of everything this chapter covers.
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The whole nervous system is a communication network split into these two parts.
"Fight or flight" — prepares the body for stress or danger.
"Rest and digest" — calms the body and conserves energy.
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An impulse has to cross this tiny gap to get from one neuron to the next.
Both happen without conscious thought — but at different levels of complexity.
A basic reflex arc: sensory neuron → interneuron → motor neuron, producing an immediate, involuntary response. Example: the knee-jerk reflex.
Involves more neural pathways and coordination — often across multiple muscle groups. Example: maintaining balance while walking.
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Three membrane layers protect the brain and spinal cord, outside-in.
The brain has connecting cavities called ventricles; the spinal cord has a central cavity that connects to them. Cerebrospinal fluid circulates through all of these spaces, cushioning and protecting the CNS.
The imaging and assessment tools used for neurological conditions.
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The chapter summary, broken into digestible sticky notes instead of one giant paragraph.
All the answer choices are laid out below — just tap the one you think is right.
📝 The source material included 8 official questions (the last one was cut off mid-sentence, completed here to match the chapter content). Questions 9–10 were added by me from the chapter summary to round it out to 10.