Front

What is the approximate distance between pre- and postsynaptic cells in electrical synapses?

Back

3.5 nm

Front

Which neurotransmitter is most commonly associated with memory formation and is used in Alzheimer's treatment?

Back

Acetylcholine

Front

Which type of neurotransmitter receptor uses a second messenger system?

Back

Metabotropic

Front

Excessive glutamate signaling can lead to: Neuroprotection, Neurotoxicity, Improved memory, Inhibited reflexes

Back

Neurotoxicity

Front

How many neurons are in the human brain?

Back

86 billion

Front

Neurons can transmit signals at speeds comparable to: A walking human, A cheetah running, A Formula 1 car, A rocket launching

Back

A Formula 1 car

Front

Which type of synapse allows signals to pass almost instantly?

Back

Electrical synapse

Front

What do neurons do while you sleep?

Back

Fire and communicate

Front

Your brain has more synaptic connections than: Grains of sand on Earth, Stars in the Milky Way, Leaves in a forest, Water molecules in a raindrop

Back

Stars in the Milky Way

Front

How fast can neurons transmit electrical signals?

Back

120 meters/second