Arthropod Muscle Differs from Vertebrate Muscle in That

Question

Arthropod muscle differs from vertebrate muscle in that
A) a single muscle fiber may be innervated by multiple motor neurons.
B) a single motor neuron forms multiple synapses (multiterminal innervation) with a single muscle fiber.
C) development of muscle tension is modulated by inhibitory presynaptic inputs.
D) muscle fibers are innervated by both excitatory and inhibitory neurons.
E) All of these.

Accepted Answer

Arthropod muscle differs from vertebrate muscle in several ways, including having a single muscle fiber that may be innervated by multiple motor neurons (A), a single motor neuron forming multiple synapses with a single muscle fiber (B), the modulation of muscle tension development by inhibitory presynaptic inputs (C), and the innervation of muscle fibers by both excitatory and inhibitory neurons (D). These characteristics collectively contribute to the unique functioning of arthropod muscles compared to vertebrate muscles.