Examlex
A firm's ______ shows the least-cost input combinations at all possible levels of output for fixed input prices.
Blood-Brain Barrier
A semipermeable barrier of endothelial cells that prevents most substances in the blood from entering the brain, thereby protecting it from toxins while allowing essential nutrients to pass through.
Neuroprotective
Pertaining to substances or practices that protect nerve cells from damage, degeneration, and impairment, often discussed in the context of neurodegenerative diseases.
Agonist
A chemical or drug that binds to receptors in the brain and activates them to produce a biological response.
Neurotransmitter
Chemical messengers that transmit signals across a chemical synapse from one neuron to another 'target' neuron, muscle cell, or gland cell.
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