What Is the Best Description of How a Given Muscle

Multiple Choice

What is the best description of how a given muscle fiber can be inhibited from contracting?

A) Inhibitory inputs from local reflexes and descending pathways prevent the fiber's motor neuron from firing action potentials.
B) Descending inputs from brainstem components of the middle level of the motor control hierarchy make inhibitory synapses onto the muscle fibers.
C) Contractions in an antagonistic muscle's fibers are stronger than the given muscle's contractions.
D) Golgi tendon organs send afferent neurons directly to muscle fibers that attach to them and release inhibitory neurotransmitter.
E) Interneurons in the local spinal cord region send axons to the muscle fiber's neuromuscular junction, where they impose presynaptic inhibition.