adherence to sth Working with thousands of small farmers makes strict adherence to fair trade rules difficult. (Definition of âadherenceâ from the Cambridge Business English Dictionary Â© Cambridge University Press)
Motor unit recruitment. Motor unit recruitment refers to the activation of additional motor units to accomplish an increase in contractile strength in a muscle. A motor unit consists of one motor neuron and all of the muscle fibers it stimulates.
Two terms are used to describe the anatomical relationship between motor neurons and muscles: the motor neuron pool and the motor unit. 1  Motor neurons are clustered in columnar, spinal nuclei called motor neuron pools (or motor nuclei).