Questions & Answers
Browse all 25 questions from the
Fundamentals of Neuroscience study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which glial cell type is primarily responsible for forming the myelin sheath in the central nervous system?
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A
Astrocytes
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B
Oligodendrocytes
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C
Microglia
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D
Schwann cells
2
What is the resting membrane potential of a typical mammalian neuron?
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A
-70 mV
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B
-30 mV
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C
0 mV
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D
+40 mV
3
Which neurotransmitter is most commonly associated with inhibitory signaling in the adult human brain?
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A
Glutamate
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B
Acetylcholine
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C
GABA
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D
Dopamine
4
The Broca's area, essential for speech production, is located in which lobe of the brain?
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A
Occipital lobe
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B
Parietal lobe
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C
Temporal lobe
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D
Frontal lobe
5
Which ion is primarily responsible for the depolarization phase of an action potential?
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A
Potassium
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B
Sodium
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C
Chloride
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D
Calcium
6
What is the primary function of the cerebellum?
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A
Regulation of body temperature
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B
Coordination and balance
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C
Processing visual stimuli
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D
Hormone secretion
7
Which structure acts as the primary relay station for sensory information traveling to the cerebral cortex?
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A
Thalamus
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B
Hypothalamus
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C
Amygdala
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D
Hippocampus
8
The 'all-or-none' principle in neuroscience refers to:
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A
Synaptic transmission strength
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B
The initiation of an action potential
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C
Receptor binding affinity
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D
Neurotransmitter synthesis
9
Which part of the neuron is primarily responsible for receiving incoming chemical signals?
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A
Axon
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B
Myelin sheath
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C
Dendrites
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D
Node of Ranvier
10
Long-term potentiation (LTP) is a cellular mechanism believed to underlie which cognitive process?
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A
Reflex arcs
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B
Sleep cycles
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C
Learning and memory
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D
Visual processing
11
Which cranial nerve is responsible for the innervation of the heart and digestive tract?
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A
Trigeminal nerve
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B
Vagus nerve
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C
Optic nerve
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D
Facial nerve
12
What is the blood-brain barrier composed of?
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A
Endothelial cells and astrocyte end-feet
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B
Cerebrospinal fluid
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C
Dura mater
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D
Schwann cells
13
The 'nodes of Ranvier' are best described as:
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A
Synaptic cleft regions
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B
Gaps in the myelin sheath
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C
Cell body organelles
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D
Neurotransmitter vesicles
14
Which lobe of the brain is primarily responsible for visual processing?
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A
Frontal
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B
Parietal
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C
Temporal
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D
Occipital
15
What is the primary excitatory neurotransmitter in the human central nervous system?
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A
Glycine
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B
GABA
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C
Glutamate
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D
Serotonin
16
Which brain structure is most closely linked to the formation of emotional memories and fear conditioning?
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A
Amygdala
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B
Cerebellum
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C
Pineal gland
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D
Pons
17
During an action potential, which ion flows out of the neuron to cause repolarization?
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A
Sodium
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B
Potassium
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C
Magnesium
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D
Chloride
18
What is the main function of the hippocampus?
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A
Motor control
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B
Consolidation of short-term memory to long-term memory
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C
Vision
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D
Olfactory sensing
19
Which protein complex is essential for the docking and fusion of neurotransmitter vesicles to the presynaptic membrane?
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A
SNARE proteins
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B
Hemoglobin
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C
Myosin
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D
Actin
20
The somatosensory cortex is located in which gyrus?
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A
Precentral gyrus
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B
Postcentral gyrus
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C
Superior temporal gyrus
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D
Angular gyrus
21
Which of the following is NOT part of the brainstem?
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A
Medulla oblongata
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B
Midbrain
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C
Pons
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D
Thalamus
22
What is the chemical composition of the myelin sheath primarily made of?
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A
Proteins and lipids
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B
Carbohydrates
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C
Nucleic acids
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D
Water only
23
Which type of synapse involves the direct physical connection between neurons allowing rapid ion flow?
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A
Chemical synapse
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B
Electrical synapse
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C
Axo-axonic synapse
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D
Dendro-dendritic synapse
24
What does the 'reuptake' process involve in synaptic transmission?
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A
Degradation of neurotransmitters by enzymes
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B
Re-absorption of neurotransmitters by the presynaptic neuron
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C
Production of new neurotransmitters
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D
Blocking of postsynaptic receptors
25
Which brain region is heavily involved in the regulation of the circadian rhythm?
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A
Suprachiasmatic nucleus
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B
Hippocampus
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C
Corpus callosum
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D
Broca's area
