Neurobiology MCQs
Neurobiology MCQs
Answer these 40 Neurobiology MCQs and assess your grip on the subject of Neurobiology. Scroll below and get started!
1: Associative long-term potentiation reflects increased ________ produced by changes in ________.
A. A calcium channel; magnesium ions
B. Calcium entry; NMDA receptors
C. A drug such as AP5 that blocks NMDA receptors.
D. Formation of new synaptic contacts
2: The rate with which an action potential travels along an axon _______.
A. Increases the frequency of action potentials
B. The largest and most heavily myelinated axons
C. Is called the conduction velocity and is measured in meters/sec
D. Entering the cell must overcome the potassium exiting
3: The simplest level of information processing takes place at the __________.
A. Axon terminals
B. Axon hillock
C. Soma
D. Dendrites
4: Increase in stimulus intensity _______.
A. Increases the duration of the action potential
B. Increases the frequency of action potentials
C. Has no effect on action potentials
D. Increases the size of the action potential
5: When the stimulus intensity increases, _______.
A. The number of action potentials increases
B. The size of the action potential increases
C. The size of the action potential decreases
D. The number of action potentials decreases
6: Within the brain, ____________ receive, integrate, and generate messages.
A. NEURONS
B. RNA
C. DNA
D. TRNA
7: Within the limbic system, sensory information is to emotion as the _____ is to the _____.
A. Thalamus; Schwann cells
B. Thalamus; amygdala
C. Parietal; amygdala
8: The parasympathetic nervous system is to _____ as the sympathetic nervous system is to _____.
A. Is part of the somatic nervous system.
B. Has cholinergic preganglionic and adrenergic postganglionic fibers.
C. Originates in the thoracic and lumbar regions of the spinal cord.
D. Both b and c above are correct .
E. All of the above are correct
9: All of the following are taste sensations except __________.
A. Sweet
B. Bland
C. Salty
D. Bitter
10: All of the information your brain receives __________.
A. Instantly forward
B. Instantly transmitted
C. Instantly rejected
11: The medulla is to the control of ________ as the cerebellum is to the control of ________.
A. Eating; sleeping
B. Emotion; motivation
C. Breathing; walking
D. Memory; attention
12: "cross bridges" that link between the thick and thin filaments directly involve__________.
A. Actin
B. Sacromeres
C. Myosin
13: Motor neuron terminals at the neuromuscular junction release ______________ onto motor endplates.
A. Acetylone
B. Acityline.
C. Acetylcholine
14: Coping with loss __________.
A. Happens all at once
B. Is a continuous process
C. Will help you to erase memories of those you have lost
D. Isn't crucial to recovery after a major loss
15: ___ carry motor commands from the brain along the spinal cord.
A. Both anterior and posterior roots
B. Ascending tracts
C. Spinal nerves
D. Cranial nerves
E. Descending tracts
16: The anterior lobe of the highlighted structure secretes all of the following except ___.
A. Follicle stimulating hormone
B. Adrenocorticotropic hormone
C. Luteinizing hormone
D. Oxytocin
17: A(n) ________ amino acid can be synthesized in your body.
A. Non-essential
B. Essential
C. None
18: Acetylcholine binds to its receptor in the sarcolemma and triggers __________.
A. The opening of calcium-release channels
B. The opening of ligand-gated cation channels
C. The opening of ligand-gated anion channels
D. The opening of voltage-gated calcium channels
19: In olfaction, activation of g-protein-coupled receptors leads to the formation of __________.
A. ATP
B. Cyclic AMP
C. Na and Ca ions
D. Odorants
20: The ____ nucleus of the thalamus is associated with pain perception of the body.
A. Anteriorb
B. Posteriorc
C. Ventral posteriord
D. Ventral lateral
21: Males' mental ability scores show greater ________ than females' mental ability scores.
A. Reliability
B. Heritability
C. Variability
D. Validity
22: The brain has ______ major parts and they are called the ______.
A. 3; hindbrain, midbrain and forebrain.
B. 3; cerebrum, cerebellum and brainstem
C. Both
D. None of these
23: The brain stem consists of the ________
A. Diencephalon
B. Midbrain
C. Medulla oblongata
D. All of these
24: The cerebellum is __________ to the cerebrum.
A. Superficial
B. Deep
C. Caudal
D. Rostral
E. Medial
25: Focal hand dystonia, sometimes called "musician's cramp", is caused by ____.
A. Extreme overlap of cortical representation of the fingers following excessive practice
B. Axons that fail to find a target cell die, only those that make sustained connections survive
C. Iodized salt
D. All of this
26: Propelling neural signals is a function of __________ neurotransmitters.
A. Myelin sheath
B. Excitatory
C. Acetylcholine
D. Neurons
27: During free fusion, the eyes _______ in order to view a stereogram without a stereoscope.
A. Use the pictorial depth cue
B. Are half closed
C. Use the motion parallax
D. Converge or diverge
28: Kosslyn's island experiment used the _____ procedure.
A. People were unconsciously influenced by the projected images when forming their mental images.
B. Plays a causal role in both perception and imagery.
C. Mental scanning
29: __________ causes a person to lapse abruptly into rem sleep from the awake state.
A. Sleep apnea
B. Epilepsy
C. Syncope
D. Narcolepsy
30: _______________ is a category of ai that attempts to emulate the way the human brain works.
A. Neural network
B. Intelligent system
C. Artificial intelligence
D. Expert systems
31: Action potentials differ from graded potentials in that __________.
A. Action potentials are all of the same magnitude
B. Resting potential is the membrane potential of a neuron that is at rest.
C. Neuropeptides
D. All of this
32: A neuron will fire if excitatory signals are stronger than _____ signals.
A. INHIBITORY
B. ANTAGONIST
C. BLOODSTREAM
D. PARALYZED
33: From birth until age 2, dendrites in the cortex increase _____.
A. Lambskin blanket
B. Fivehold
C. Pruning
D. Triples
34: When the stimulus voltage is increased, _______.
A. A greater-than-threshold depolarization results and sodium permeability into the cell increases to overcome the potassium exiting
B. A greater-than-threshold depolarization results
C. Sodium permeability into the cell decreases
D. Sodium permeability into the cell increases to overcome the potassium exiting
35: In this simulation, ___________________ will be used to stimulate the axon.
A. Voltage
B. Light
C. Heat
D. Chemicals
36: In the human retina, messages go from receptors at the back of the eye to ____.
A. Retina cells
B. Bipolar cells
C. Ganglion cells
D. Spiny cells
37: According to piaget, a stage-five sensorimotor baby is like a _____.
A. 1 year
B. Object permanence
C. 25% of
D. Scientist who experiments to see what will happen
E. Vision
38: Blindsight suggests that some parts of the brain may play a special role in ___________________
A. Consciousness
B. Mammalian
C. Epilepsy
D. Corpus callosum
39: Just over _____ children had hemispherectomies at johns hopkins between 1975 and 2001.
A. 100
B. 200
C. 300
D. 400
40: The body makes antibodies against its own myelin in the diseases of ________ and ________.
A. Amyotrophic lateral sclerosis
B. Radiculopathy
C. Coordination
D. Guillain-Barré syndrome, multiple sclerosis
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Neurobiology MCQs
