SENSORY PERCEPTION AND NERVOUS SYSTEM BASICS
EXAMS WITH 100% ACCURATE ANSWERS UPDATED
2025/2026 BEST GRADED A+ FOR SUCCESS
What is sensory perception?
The ability to detect, interpret, and respond to internal and external
stimuli.
What is the functional unit of the nervous system?
The neuron.
What are the three major parts of a neuron?
Cell body, dendrites, and axon.
What is the function of dendrites?
Receive incoming nerve impulses.
What is the function of the axon?
Carries impulses away from the cell body.
What is myelin?
A fatty covering that speeds nerve impulse conduction.
Which neurotransmitter is primarily excitatory?
Glutamate.
Which neurotransmitter is primarily inhibitory?
GABA.
What happens when there is excessive neuronal excitation?
A seizure may occur.
,SENSORY PERCEPTION AND NERVOUS SYSTEM BASICS
EXAMS WITH 100% ACCURATE ANSWERS UPDATED
2025/2026 BEST GRADED A+ FOR SUCCESS
What part of the brain controls voluntary movement, memory, and
higher thinking?
The cerebrum.
What is a seizure?
A sudden, uncontrolled electrical discharge in the brain causing
temporary neurologic dysfunction.
Is a seizure a disease?
No. It is a symptom of abnormal brain activity.
What is epilepsy?
Two or more unprovoked seizures occurring at least 24 hours apart.
What is the most common cause of a first seizure in young children?
Febrile seizure.
Name the six major etiologic categories of seizures.
Structural, genetic, infectious, metabolic, immune, and unknown.
What electrolyte imbalance commonly causes seizures?
Hyponatremia.
What blood glucose abnormality can trigger seizures?
Hypoglycemia.
What CNS infection commonly causes seizures?
, SENSORY PERCEPTION AND NERVOUS SYSTEM BASICS
EXAMS WITH 100% ACCURATE ANSWERS UPDATED
2025/2026 BEST GRADED A+ FOR SUCCESS
Meningitis.
What brain injury can increase seizure risk?
Head trauma.
What developmental disorder increases seizure risk?
Cerebral palsy.
What is defined as a sudden, uncontrolled electrical discharge in the
brain?
A seizure.
True or False: A seizure itself is classified as a disease.
False. It is a symptom of abnormal brain activity.
How many unprovoked seizures are required to diagnose epilepsy?
Two or more.
What is the minimum time interval required between two seizures to
diagnose epilepsy?
At least 24 hours.
What type of pediatric seizure is triggered by a rapid rise in body
temperature?
Febrile seizure.
Which etiologic category of seizures involves physical abnormalities in
brain tissue?
EXAMS WITH 100% ACCURATE ANSWERS UPDATED
2025/2026 BEST GRADED A+ FOR SUCCESS
What is sensory perception?
The ability to detect, interpret, and respond to internal and external
stimuli.
What is the functional unit of the nervous system?
The neuron.
What are the three major parts of a neuron?
Cell body, dendrites, and axon.
What is the function of dendrites?
Receive incoming nerve impulses.
What is the function of the axon?
Carries impulses away from the cell body.
What is myelin?
A fatty covering that speeds nerve impulse conduction.
Which neurotransmitter is primarily excitatory?
Glutamate.
Which neurotransmitter is primarily inhibitory?
GABA.
What happens when there is excessive neuronal excitation?
A seizure may occur.
,SENSORY PERCEPTION AND NERVOUS SYSTEM BASICS
EXAMS WITH 100% ACCURATE ANSWERS UPDATED
2025/2026 BEST GRADED A+ FOR SUCCESS
What part of the brain controls voluntary movement, memory, and
higher thinking?
The cerebrum.
What is a seizure?
A sudden, uncontrolled electrical discharge in the brain causing
temporary neurologic dysfunction.
Is a seizure a disease?
No. It is a symptom of abnormal brain activity.
What is epilepsy?
Two or more unprovoked seizures occurring at least 24 hours apart.
What is the most common cause of a first seizure in young children?
Febrile seizure.
Name the six major etiologic categories of seizures.
Structural, genetic, infectious, metabolic, immune, and unknown.
What electrolyte imbalance commonly causes seizures?
Hyponatremia.
What blood glucose abnormality can trigger seizures?
Hypoglycemia.
What CNS infection commonly causes seizures?
, SENSORY PERCEPTION AND NERVOUS SYSTEM BASICS
EXAMS WITH 100% ACCURATE ANSWERS UPDATED
2025/2026 BEST GRADED A+ FOR SUCCESS
Meningitis.
What brain injury can increase seizure risk?
Head trauma.
What developmental disorder increases seizure risk?
Cerebral palsy.
What is defined as a sudden, uncontrolled electrical discharge in the
brain?
A seizure.
True or False: A seizure itself is classified as a disease.
False. It is a symptom of abnormal brain activity.
How many unprovoked seizures are required to diagnose epilepsy?
Two or more.
What is the minimum time interval required between two seizures to
diagnose epilepsy?
At least 24 hours.
What type of pediatric seizure is triggered by a rapid rise in body
temperature?
Febrile seizure.
Which etiologic category of seizures involves physical abnormalities in
brain tissue?
