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__________ is the calcium-sensor that triggers neurotransmitter release from the axon terminal of a neuron.

__________ is characterized by loss of central vision.

Which part of the neuron receives incoming information (input):

Which letter is indicating an axo-axonal synapse?

A muscle fiber at rest has high extracellular _____ amounts. 

Which kind(s) of muscle utilize gap junctions? (select ALL that apply)

The ______ phase of a muscle twitch corresponds to removal of Ca2+ from the sarcoplasm. 

Which of these is NOT a factor that typically determines the strength of a graded contraction:

The major excitatory neurotransmitter of the CNS is:

Motivation and reward (or reinforcement) is mediated primarily by ___________ in the CNS and is the target of drugs of abuse such as heroin.