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Free The Nervous System Flashcards
The nervous system is biology's wiring diagram — neurons, signals, and the divisions every course maps first. These cards cover the structures and signal path exams keep returning to.
Study these 10 starter cards
QUESTION
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QWhat are the two main divisions of the nervous system?
ACentral (brain + spinal cord) and peripheral (everything else)
QWhat is a neuron?
AA nerve cell — the signal-carrying unit of the nervous system
QWhat do dendrites do?
AReceive signals into the neuron
QWhat does the axon do?
ACarries the signal away from the cell body
QWhat is a synapse?
AThe junction where one neuron signals the next, via neurotransmitters
QWhat is myelin?
AThe fatty insulation around axons that speeds up signals
QWhat are the sympathetic and parasympathetic systems?
AFight-or-flight vs rest-and-digest — the autonomic system's two modes
QWhat is a reflex arc?
AA fast sensory-to-motor loop through the spinal cord, bypassing the brain
QWhat is the blood-brain barrier?
ASelective vessel lining that protects the brain from most bloodborne substances
QName two key neurotransmitters and a role for each.
ADopamine (reward/movement) and serotonin (mood) — also acetylcholine (muscle activation)
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Create your free deck →How to study the nervous system with flashcards
- One fact per card. Recall the signal's journey — dendrite to axon to synapse — as one connected story, not three separate facts.
- Rate honestly. After each card, choose Again, Hard, Good, or Easy — the spaced repetition algorithm uses your answer to decide when the card returns, right before you'd forget it.
- A few minutes daily beats marathons. Ten new cards a day is roughly 3,650 a year, retained. Deep dives: How to make flashcards that actually work · The spacing effect, explained · How to study for exams with flashcards.
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