The Neuron That Relays Commands from the CNS Nuclei to the Effectors

Question

The neuron that relays commands from the CNS nuclei to the effectors is the ________ neuron.
A) second-order
B) lower motor
C) first-order
D) upper motor
E) third-order

Accepted Answer

Lower motor neurons are the neurons that relay commands from the CNS nuclei to the effectors, which are either skeletal muscles or glands. First-order neurons are sensory neurons that carry sensory information from the periphery to the CNS, while second-order and third-order neurons are typically involved in relaying and processing this sensory information within the CNS. Upper motor neurons are involved in the control of lower motor neurons but do not directly relay commands to effectors.