NEUROTRANSMITTERS, REFLEXES) QUALITY QUESTIONS &
VERIFIED SOLUTIONS WITH RATIONALES| LATEST 2025/2026,
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Which Of The Following Sends Sensory Information To The Brain?
A. The Afferent Division Of The Peripheral Nervous System.
B. The Efferent Division Of The Peripheral Nervous System.
C. The Somatic Nervous System.
D. The Autonomic Nervous System.
Correct Ans: A: Afferent Means "Incoming". Incoming Information Travels From
The Body's Sensors To The Brain Carrying Sensory Information.
What Part Of The Nervous System Prepares The Body For Action During Extreme Situations?
A. The Limbic System
B. The Sympathetic Division
C. The Efferent System
D. The Parasympathetic Division
Correct Ans: B: The Sympathetic Division (Of The Autonomic Nervous System) "Stirs You Up".
It Prepares For Action, Those Body Organs That Will Be Required For
Rapid And Vigorous Activity.
To What Does The Following Description Apply? "An Unlearned And Involuntary But Predictable
Motor Response To A Stimulus, That Is Rapid And Does Not Involve Any Processing By The
Brain."
,A. Spinal Reflex
B. Autonomic Reflex
C. Cranial Reflex
D. Learned Reflex
Correct Ans: A: Spinal Reflexes Happen Without The Involvement Of Conscious Or
Unconscious Decision-Making By The Brain.
Which Statement About The Sympathetic And/Or Parasympathetic Divisions Is Correct?
A. All Sympathetic Neurons Release Ach As A Neurotransmitter.
B. Sympathetic Division Fibres Emerge From Brain & Sacral Spinal Cord.
C. Parasympathetic Division Stimulates Adrenal Gland To Release Norepinephrine &
Epinephrine.
D. Some Organs Are Innervated By Both Sympathetic Division And Parasympathetic Division.
Correct Ans: D: Indeed, Some Organs (E.G. Heart) Are Innervated By Both Divisions.
In Choices A, B, Replace "Sympathetic" With Parasympathetic, And In Choice C
Replace "Parasympathetic" With Sympathetic, To Get A True Statement.
Which One Of The Following Parts Of The Nervous System Carries Impulses Towards The Brain?
A. Peripheral Nervous System
B. Somatic Nervous System
C. Autonomic Nervous System
D. Parasympathetic Division
Correct Ans: A: The Peripheral Ns Delivers Sensory Information To Cns As Well
As Carrying Motor Commands From Cns To Peripheral Tissues. The Somatic Ns
, Is Part Of The Efferent Division (Carrying Impulses Away From The Brain) Of The
Peripheral Ns. The Autonomic (And Parasympathetic Division) Carry Efferent
Impulses.
Which Statement About Efferent Impulses In The Spinal Cord Is Correct?
A. They Travel Along The Spino-Thalamic And Spino-Cerebellar Tracts.
B. They Pass Along Tracts That Are Located In The Gray Matter Of The Spinal Cord.
C. The Nerve Cells That They Travel Through Have Their Cell Bodies Located In The Dorsal Root
Ganglia.
D. The Axons Carrying These Impulses Pass Through The Ventral Root Of The Spinal Nerves.
Correct Ans: D: Efferent Impulses Are Motor Impulses So Leave The Spinal Cord Via
The Ventral Roots. "Spino-Thalamic" Means From Spine To Thalamus, I.E. Ascending Or Sensory.
Tracts Are White Matter Not Gray. Sensory Neurons Have Their Cell
Bodies In The Dorsal Root Ganglia.
What Statement Is True About Spinal Reflexes?
A. They Cannot Be Inhibited Or Reinforced By The Brain.
B. They Do Not Involve Processing By The Brain.
C. They Involve Processing By The Brainstem.
D. They Are All Simple Monosynaptic Pathways.
Correct Ans: B: A Spinal Reflex Does Not Involve Processing By The Brain. However
They Can Be Inhibited Or Reinforced By The Brain. Some Are Polysynaptic.