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CNS EXAM AND PRACTICE EXAM NEWEST 2025 TEST
BANK| COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+| CENTRAL NERVOUS SYSTEM
EXAM PREP 2025 (BRAND NEW!!)
CNS .....ANSWER..... Central Nervous System, which includes the
brain and spinal cord.
PNS .....ANSWER..... Peripheral Nervous System, which includes
the sensory division (viscera and somatic) and motor division
(somatic and visceral, including sympathetic and
parasympathetic).
Anterior .....ANSWER..... Front
Posterior .....ANSWER..... Back
Ventral .....ANSWER..... Front
Dorsal .....ANSWER..... Back
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Lateral .....ANSWER..... Sides
Medial .....ANSWER..... Middle
Superior .....ANSWER..... Top of the brain
Rostral .....ANSWER..... Front of brain
Caudal .....ANSWER..... Back of brain
Inferior .....ANSWER..... Bottom of brain
Spinal cord sections .....ANSWER..... Divided into 5 sections:
cervical, thoracic, lumbar, sacral, coccygeal.
Conus medullans .....ANSWER..... The point where the spinal cord
stops at L1, with the rest being fibers.
Spinal nerves .....ANSWER..... Attachments that connect the spinal
cord to the PNS and send out signals.
Sensory ganglion .....ANSWER..... The dorsal root ganglion that
contains the cell bodies for sensory neurons before they enter the
brain.
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DRG functions .....ANSWER..... Transmit sensory information from
the body to the CNS.
Nociceptors .....ANSWER..... Type of DRG that responds to pain.
Mechanoreceptors .....ANSWER..... Type of DRG that responds to
position and strength.
Proprioceptors .....ANSWER..... Type of DRG that responds to
pressure.
Spinal nerve .....ANSWER..... Where sensory neurons enter from
the cell body and travel to the dorsal root.
Primary spinal reflexes .....ANSWER..... Includes stretch reflex,
autogenic inhibition, and flexor reflex.
Stretch reflex .....ANSWER..... Involves rapid stretch of muscle and
contraction to maintain posture.
Autogenic inhibition .....ANSWER..... Occurs with large force on
tendon, decreasing muscle tension to prevent damage.
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Flexor reflex .....ANSWER..... Involves withdrawal of limb from a
sharp, painful stimulus.
Reflex classification .....ANSWER..... Classified by type (simple
and acquired), size, magnitude, and latency.
Reflex arc .....ANSWER..... Components include Receptor →
Sensory neuron (afferent) → Integration center → Motor neuron
→ Effector organ.
Olfactory .....ANSWER..... nose : sensory
Optic .....ANSWER..... eyes : sensory
Oculomotor .....ANSWER..... all eye muscles : motor
Trochlear .....ANSWER..... superior oblique muscle : motor
Abducent .....ANSWER..... external rectus muscle : motor
Trigeminal .....ANSWER..... face, sinuses, teeth, mastication : BOTH
Facial .....ANSWER..... muscles of face : motor
CNS EXAM AND PRACTICE EXAM NEWEST 2025 TEST
BANK| COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+| CENTRAL NERVOUS SYSTEM
EXAM PREP 2025 (BRAND NEW!!)
CNS .....ANSWER..... Central Nervous System, which includes the
brain and spinal cord.
PNS .....ANSWER..... Peripheral Nervous System, which includes
the sensory division (viscera and somatic) and motor division
(somatic and visceral, including sympathetic and
parasympathetic).
Anterior .....ANSWER..... Front
Posterior .....ANSWER..... Back
Ventral .....ANSWER..... Front
Dorsal .....ANSWER..... Back
,Page 2 of 40
Lateral .....ANSWER..... Sides
Medial .....ANSWER..... Middle
Superior .....ANSWER..... Top of the brain
Rostral .....ANSWER..... Front of brain
Caudal .....ANSWER..... Back of brain
Inferior .....ANSWER..... Bottom of brain
Spinal cord sections .....ANSWER..... Divided into 5 sections:
cervical, thoracic, lumbar, sacral, coccygeal.
Conus medullans .....ANSWER..... The point where the spinal cord
stops at L1, with the rest being fibers.
Spinal nerves .....ANSWER..... Attachments that connect the spinal
cord to the PNS and send out signals.
Sensory ganglion .....ANSWER..... The dorsal root ganglion that
contains the cell bodies for sensory neurons before they enter the
brain.
,Page 3 of 40
DRG functions .....ANSWER..... Transmit sensory information from
the body to the CNS.
Nociceptors .....ANSWER..... Type of DRG that responds to pain.
Mechanoreceptors .....ANSWER..... Type of DRG that responds to
position and strength.
Proprioceptors .....ANSWER..... Type of DRG that responds to
pressure.
Spinal nerve .....ANSWER..... Where sensory neurons enter from
the cell body and travel to the dorsal root.
Primary spinal reflexes .....ANSWER..... Includes stretch reflex,
autogenic inhibition, and flexor reflex.
Stretch reflex .....ANSWER..... Involves rapid stretch of muscle and
contraction to maintain posture.
Autogenic inhibition .....ANSWER..... Occurs with large force on
tendon, decreasing muscle tension to prevent damage.
, Page 4 of 40
Flexor reflex .....ANSWER..... Involves withdrawal of limb from a
sharp, painful stimulus.
Reflex classification .....ANSWER..... Classified by type (simple
and acquired), size, magnitude, and latency.
Reflex arc .....ANSWER..... Components include Receptor →
Sensory neuron (afferent) → Integration center → Motor neuron
→ Effector organ.
Olfactory .....ANSWER..... nose : sensory
Optic .....ANSWER..... eyes : sensory
Oculomotor .....ANSWER..... all eye muscles : motor
Trochlear .....ANSWER..... superior oblique muscle : motor
Abducent .....ANSWER..... external rectus muscle : motor
Trigeminal .....ANSWER..... face, sinuses, teeth, mastication : BOTH
Facial .....ANSWER..... muscles of face : motor
