HES 300 - CNS Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
What are the two primary divisions The Central Nervous System (CNS) and
of the
the nervous system? Peripheral Nervous System (PNS).
What are the main components of The brain and the spinal cord.
the Central Nervous System
(CNS)?
What is the primary function of the It controls complex movements (motor
cerebral cortex? cortex) and
interprets sensory information (sensory
cortex).
What is the role of the cerebellum? It coordinates, monitors, and smooths out
movement by incorporating feedback from
proprioceptors.
Which structures comprise the The midbrain, pons, and medulla
brain oblongata.
stem?
What are the primary Cardiorespiratory control (heart and lungs),
responsibilities metabolic functions, and complex reflexes.
of the brain stem?
, What is the function of the It is responsible for autonomic and
hypothalamus? endocrine
regulation.
What is 'spinal tuning'? The process where neurons in the spinal
cord
refine movements after receiving signals
from the
brain.
What defines a reflex? A motor response that occurs without
needing
input from the brain, occurring at the level
of the
spinal cord.
What is the difference between Afferent signals carry sensory information
afferent and efferent signals? to the
CNS, while efferent signals carry motor
outputs
from the CNS.
What does the Peripheral Nervous Neurons peripheral to the CNS, including
System (PNS) consist of? cranial
nerves and spinal nerves.
What is the function of They detect chemical changes in the body,
chemoreceptors? such as
oxygen or CO2 levels.
with Verified Solutions | Latest Updated 2026
What are the two primary divisions The Central Nervous System (CNS) and
of the
the nervous system? Peripheral Nervous System (PNS).
What are the main components of The brain and the spinal cord.
the Central Nervous System
(CNS)?
What is the primary function of the It controls complex movements (motor
cerebral cortex? cortex) and
interprets sensory information (sensory
cortex).
What is the role of the cerebellum? It coordinates, monitors, and smooths out
movement by incorporating feedback from
proprioceptors.
Which structures comprise the The midbrain, pons, and medulla
brain oblongata.
stem?
What are the primary Cardiorespiratory control (heart and lungs),
responsibilities metabolic functions, and complex reflexes.
of the brain stem?
, What is the function of the It is responsible for autonomic and
hypothalamus? endocrine
regulation.
What is 'spinal tuning'? The process where neurons in the spinal
cord
refine movements after receiving signals
from the
brain.
What defines a reflex? A motor response that occurs without
needing
input from the brain, occurring at the level
of the
spinal cord.
What is the difference between Afferent signals carry sensory information
afferent and efferent signals? to the
CNS, while efferent signals carry motor
outputs
from the CNS.
What does the Peripheral Nervous Neurons peripheral to the CNS, including
System (PNS) consist of? cranial
nerves and spinal nerves.
What is the function of They detect chemical changes in the body,
chemoreceptors? such as
oxygen or CO2 levels.
