Nervous System MCQs
Nervous System MCQs
Try to answer these 40 Nervous System MCQs and check your understanding of the Nervous System subject. Scroll down and let's begin!
1: The ________ method can be used to identify the neural inputs to a brain region.
A. Retrograde labeling
B. Electrolytic lesion
C. Anterograde labeling
2: The excitable cells of the nervous system are called ____________ .
A. Neurons
B. Neuroglia
C. Neurosma
D. None of the above
3: The efferent division of the peripheral nervous system innervates ________ cells.
A. Skeletal muscle cells.
B. Glandular cells.
C. Smooth muscle cells.
D. Heart muscle cells.
E. All of the above
4: The _______ branch of the nervous system is under involuntary, unconscious control.
A. Autonomic Nervous System
B. Somatic nervous system
C. None
5: There are _____ pairs of cranial nerves and _____ pairs of spinal nerves.
A. 12;31
B. 13;31
C. 13;32
D. 12;32
6: Cells that gather information and control body functions are ________.
A. Nerve cell
B. Proton
C. Electron
D. Neurons
7: For example, a single touch sensory ____________ can cover a large area of skin.. .
A. Electron.
B. Proton .
C. Neutron .
D. Neuron
8: __________neurons are rare neurons, but are located in the retina and in the olfactory mucosa.
A. Epineurium
B. Bipolar
C. Perineurium
D. None of these
9: In the surgery of skull base, the ____ procedure is what is done to the lesion.
A. Radical
B. Definitive
C. Approach
D. Intubation
10: Match the term to its correct description: gaba __________.
A. Is a "mood" transmitter, the target of Prozac to relieve depression
B. Generally inhibitory; found throughout CNS
C. Excites skeletal muscle
D. Is a neurotransmitter of postganglionic neurons in the sympathetic nervous system
11: In neurons, efferent is to ______ as afferent is to ______.
A. Androgens; estrogens
B. Controls heartbeat
C. Motor; sensory
D. None of these
12: Function in the endocrine system much like ____ in the nervous system.
A. Hormones;Neurotransmitters
B. Hormones; Dendrites
C. Neurotransmitters; Hormones
D. Endorphins; Sensory neurons
13: All somatic motor neurons produce __________.
A. Both epinephrine and norepinephrine
B. Only norepinephrine
C. Only acetylcholine
D. Both acetylcholine and norepinephrine
14: ________ neurons form the afferent division of the pns.
A. Sensory neurons
B. Parasympathetic
C. Sympathetic
D. Motor neurons
15: ________ open or close in response to binding specific molecules.
A. Activated channels
B. Leak channels
C. Voltage-gated and chemically gated channels
D. Chemically gated channels
E. Voltage-gated channels
16: A neuron sends a signal toward another neuron along its _____.
A. Axon
B. Dendrite
C. Exon
17: When a ligand ____________, an ipsp will be produced.
A. Opens a potassium channel
B. The opening of calcium-release channels
C. The opening of ligand-gated cation channels
D. The opening of ligand-gated anion channels
18: The concentrations of ions are very different inside and outside a nerve cell due to _____.
A. Osmosis
B. Diffusion
C. Sodium-potassium pumps
D. Symports and antiports
19: The heart muscle is a ________ effector.
A. Visceral
B. Pressure
C. Ventral roots
D. Somatic
20: The peripheral nervous system consists of _____ and motor neurons.
A. Cranial
B. Nerves
C. Spinal
D. All of these
21: Each peripheral nerve provides ________ innervation to peripheral structures.
A. Motor
B. Sensory
C. Motor and sensory
D. Motor or sensory
22: If the membrane potential of a neuron decreases, the membrane potential _____.
A. Becomes less negative.
B. Becomes more negative.
C. Remains unchanged.
D. None of the above.
23: In a neuron, during the depolarization phase that may trigger an action potential _____.
A. They are pumped by proteins that require ATP hydrolysis and when the electrical charge gradient repulses or attracts them
B. Becomes less negative.
C. Some voltage-gated sodium channels are open
D. None of these
24: Autonomic nervous system fibers are involved in all of the following except __________.
A. Changing the diameter of the pupil
B. Adjusting heart rate and force
C. Altering salivary mucus secretion
D. Regulating gastrointestinal motility
E. Maintaining the tonicity of the muscles of the neck.
25: Somatic is to autonomic as ______ is to ______.
A. Voluntary ;involuntary
B. Involuntary; voluntary
C. Both a and b
D. None of the above
26: The _____ is the main means for transmitting messages between the brain and the body.
A. Cortex
B. Medulla
C. Axon
D. Spinal cord
27: The motor neurons of the sympathetic nervous system project from the _______ to the _______.
A. Gray matter of the thoracic and lumbar spinal cord; sympathetic ganglia
B. Sympathetic ganglia; gray matter of the thoracic and lumbar spinal cord
C. Both a and b
D. None of the above
28: Bones are composed mostly of __________.
A. Magnesium
B. Vitamins
C. Calcium
D. Cartilage
29: A remarkable fact about cells is that _____.
A. Cells are very different but have similar properties
B. Cell
C. Vacuole
D. Chloroplast
30: During the _______________, the neuron cannot generate another action potential.
A. Na+, absolute refractory
B. Saltatory
C. Cardiac& smooth muscle and glands
D. Sodium potassium pump
31: The tract that carries sensations from muscle spindles to the cns is the __________.
A. Posterior column
B. Anterior spinothalamic
C. Lateral spinothalamic
D. Spinocerebellar
32: In ________, one neuron synapses on several postsynaptic neurons.
A. Somatic
B. Convergence
C. Divergence
D. Absorption
33: In a(n) ________ synapse, current flows directly between cells.
A. Electrical
B. Ependymal cells
C. Ependymal
D. Multipolar
E. Sensory
34: Penfield mapped locations of body parts on area s1 by _____.
A. The somatosensory, auditory, and visual systems
B. Stimulation of the skin; the object
C. Stimulating S1 areas in humans, and asking where they felt body sensations
D. Causes changes in somatosensory cortex for changes in sensory component of pain
35: The cochlea, semicircular canals, and vestibular sacs make up the _____ ear.
A. Middle
B. Cochlea
C. Inner
D. Outer
36: The ________ convey(s) information about head position with respect to gravity.
A. Organ of corti
B. Stapes
C. Utricle and saccule
D. Spiral organ
37: A nerve is a group of ________ bundled together
A. Axons
B. Hypothalamus.
C. Interneurons.
D. Preconventional
E. Hypothalamus
38: The _______________ division of the ans functions mainly under ordinary, restful conditions.
A. Hypothalamus
B. Somatic
C. Parasympathetic
D. Brain and sacral
39: Normally, sodium and potassium leakage channels differ because ___________________.
A. Sodium ions diffuse through leakage channels into the cell, but potassium ions diffuse through leakage channels out of the cell
B. Sodium leakage channels require ATP to transport ions, but potassium leakage channels do not
C. Sodium leakage channels are voltage-gated, but potassium leakage channels are ligand-gated
D. Sodium leakage channels always remain open, but potassium leakage channels must be specifically activated to open
40: A/an ______ is administered to temporarily relieve anxiety and to reduce tension.
A. Antipsychotic drug
B. Anxiolytic drug
C. Mood-stabilizing drug
D. Psychotropic drug
41: The nucleus basalis is a key part of the brains system for ____.
A. Attention
B. Brain stem
C. Midbrain and forebrain
D. Pons and medulla
42: Bidirectional, instantaneous synaptic transmission is typical of __________.
A. Depolarize
B. Spatial summation
C. The insulation
D. Electrical synapses
43: The complete termination of metabolic processes is called _______________ death.
A. Death
B. Cellular
C. Biological
D. None of these
44: Parkinsonism is characterized by the loss of _____
A. Dopaminergic innervation
B. Neuron.
C. Cerebrospinal fluid
D. None of these
45: Pathological conditions that cause albuminuria include ________.
A. Eating too much protein.
B. Tumors of the urinary tract
C. Poisoning.
D. Hemolytic anemia.
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Nervous System MCQs
