PERIPHERAL NERVOUS SYSTEM (PNS) | COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY
GUIDE 2026/2027
PNS - correct answer ✔✔Peripheral nervous system - composed of all the neural tissue outside
of CNS. Two types of neurons- sensory and motor.
Sensory neuron - correct answer ✔✔Afferent neurons; carry sensory impulses from sensory
receptors to CNS; input information to CNS; Location of receptors = skin & sense organs.
Motor neuron - correct answer ✔✔Efferent neurons; carry motor impulses away from CNS and
to effectors; output information from CNS; Effectors = muscles & glands.
Somatic sensory receptors - correct answer ✔✔Monitor the outside world and our position in
it.
Visceral sensory receptors - correct answer ✔✔Monitor the internal conditions and the status
of the other organ systems
Afferent axon - correct answer ✔✔An axon directed toward the central nervous system,
conveying sensory information
Efferent axon - correct answer ✔✔An axon directed away from the central nervous system,
conveying motor commands to muscles and glands
Dorsal root ganglion - correct answer ✔✔A nodule on a dorsal root that contains cell bodies of
afferent spinal nerve neurons
GUIDE 2026/2027
PNS - correct answer ✔✔Peripheral nervous system - composed of all the neural tissue outside
of CNS. Two types of neurons- sensory and motor.
Sensory neuron - correct answer ✔✔Afferent neurons; carry sensory impulses from sensory
receptors to CNS; input information to CNS; Location of receptors = skin & sense organs.
Motor neuron - correct answer ✔✔Efferent neurons; carry motor impulses away from CNS and
to effectors; output information from CNS; Effectors = muscles & glands.
Somatic sensory receptors - correct answer ✔✔Monitor the outside world and our position in
it.
Visceral sensory receptors - correct answer ✔✔Monitor the internal conditions and the status
of the other organ systems
Afferent axon - correct answer ✔✔An axon directed toward the central nervous system,
conveying sensory information
Efferent axon - correct answer ✔✔An axon directed away from the central nervous system,
conveying motor commands to muscles and glands
Dorsal root ganglion - correct answer ✔✔A nodule on a dorsal root that contains cell bodies of
afferent spinal nerve neurons
