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Module 5-Adv Biology

Across
A chemical released by a neuron. This chemical travels across the synaptic cleft, allowing the neuron to communicate with another cell.
One motor neuron and all the muscle fibers it innervates
A stimulus too small to create an action potential in a neuron
The state of partial contraction in a muscle, even when the muscle is not being used.
The functional unit of the nervous system, a nerve cell
Down
The repeating unit of a myofibril.
Stimuli of increasing strength that create more action potentials in more motor neurons.
A stimulus strong enough to create one action potential in a neuron.
A stimulus that is strong enough to create action potentials in all the motor neurons innervating a whole muscle.
The interface between a neuron and another cell.