EXSS 380 FINAL EXAM QUESTIONS & ANSWERS
1. ____ is the greatest concentration outside the cell while the neural membrane is at
rest.
a. Na+
b. K+
c. A- - Answers :a. Na+
2. A patient has an inability developing motor programs, which brain region is most
likely affected?
a. Motor Association Area
b. Somatosensory Association Area
c. Primary Motor Cortex
d. Sensory Cortex - Answers :Motor Association Area
3. The smallest component of the nervous system that contributes to muscle contraction
is the _____.
a. Motor end plate
b. Motor unit
c. Muscle twitch
d. Sarcomere - Answers :Motor unit
4. Which type of muscle fiber is activated last during muscle contraction where the
contraction intensity is smoothly ramping to be more intense?
a. MN with a diameter of 50 microns
b. MN with a diameter of 60 microns
c. MN with a diameter of 80 microns
d. All will be recruited at the same time as long as they have myelin - Answers :MN with
a diameter of 80 microns
5. The number of muscle fiber innervated by a single motor neuron is identified by the
___.
a. Henneman principle
b. Innervation constant
c. Innervation ratio
d. Motor ratio - Answers :Innervation ratio
6. The ____ refers to the specific synapse between the -motorneuron and the
sarcolemma, or muscle tissue.
,a. Motor unit
b. Synaptic cleft
c. Myotendinous junction
d. Motor end plate - Answers :Motor end plate
7. Which type of neuron conducts nerve impulses toward the central nervous system?
a. Afferent
b. Association
c. Efferent
d. Interneuron - Answers :Afferent
8. This is the last area of the cerebrum that information passes through as before motor
signals descend to the spinal cord ____.
a. Premotor association cortex
b. Somatosensory association cortex
c. Primary motor cortex
d. Primary somatosensory cortex - Answers :Primary motor cortex
9. the _____ area of the cerebral cortex is responsible for integration and interpretation
of information from peripheral receptors.
a. Supplementary motor
b. Somatosensory
c. Premotor
d. Somatosensory association - Answers :Somatosensory association
10. The precentral gyrus (more rostral) is composed of the ____, while the postcentral
gyrus (more caudal) is composed of the _____.
a. Somatosensory area; primary motor area
b. Somatosensory association area; supplementary motor area
c. Primary motor area; somatosensory area
d. Primary motor area; supplementary motor area - Answers :Primary motor area;
somatosensory area
21. The point of communication between an axon of cell A and the dendrite of cell B is
the _.
a. Soma
b. Axon
c. Neurotransmitter
d. Synapse - Answers :D. Synapse
22. The ___ is responsible for increased nerve conduction velocity.
, a. Axon
b. Myelin sheath
c. Dendrite
D. Neurotransmitter - Answers :Myelin sheath
23. What is not a function of a glial cell?
a. Insulate axons
b. Transmit neurotransmitter into the neuromuscular junction
c. Phagocytosis following disease
d. Clear excess neurotransmitter - Answers :Transmit neurotransmitter into the
neuromuscular junction
24. The principle of dynamic polarization states that physiological signals within a nerve
cell only flow in one direction.
True/False - Answers :True
25. The cerebellum is considered ____ to the frontal lobe.
a. Rostral
b. Caudal
c. Anterior
d. Superior - Answers :Caudal
26. This forebrain structure is the "gatekeeper" of sensory information, responsible for
routing information to higher brain centers
a. Sensory cortex
b. Cerebellum
c. Thalamus
d. Olfactory lobe - Answers :Thalamus
27. The majority of neurons found in both the CNS and PNS are ___.
a. Efferent neurons
b. Afferent neurons
c. Association neurons
D. Interneurons - Answers :Interneurons
28. A bundle of nerve fibers running superior to inferior in the central nervous system
are referred to as a _____.
a. Ganglion
b. Nucleus
c. Tract
1. ____ is the greatest concentration outside the cell while the neural membrane is at
rest.
a. Na+
b. K+
c. A- - Answers :a. Na+
2. A patient has an inability developing motor programs, which brain region is most
likely affected?
a. Motor Association Area
b. Somatosensory Association Area
c. Primary Motor Cortex
d. Sensory Cortex - Answers :Motor Association Area
3. The smallest component of the nervous system that contributes to muscle contraction
is the _____.
a. Motor end plate
b. Motor unit
c. Muscle twitch
d. Sarcomere - Answers :Motor unit
4. Which type of muscle fiber is activated last during muscle contraction where the
contraction intensity is smoothly ramping to be more intense?
a. MN with a diameter of 50 microns
b. MN with a diameter of 60 microns
c. MN with a diameter of 80 microns
d. All will be recruited at the same time as long as they have myelin - Answers :MN with
a diameter of 80 microns
5. The number of muscle fiber innervated by a single motor neuron is identified by the
___.
a. Henneman principle
b. Innervation constant
c. Innervation ratio
d. Motor ratio - Answers :Innervation ratio
6. The ____ refers to the specific synapse between the -motorneuron and the
sarcolemma, or muscle tissue.
,a. Motor unit
b. Synaptic cleft
c. Myotendinous junction
d. Motor end plate - Answers :Motor end plate
7. Which type of neuron conducts nerve impulses toward the central nervous system?
a. Afferent
b. Association
c. Efferent
d. Interneuron - Answers :Afferent
8. This is the last area of the cerebrum that information passes through as before motor
signals descend to the spinal cord ____.
a. Premotor association cortex
b. Somatosensory association cortex
c. Primary motor cortex
d. Primary somatosensory cortex - Answers :Primary motor cortex
9. the _____ area of the cerebral cortex is responsible for integration and interpretation
of information from peripheral receptors.
a. Supplementary motor
b. Somatosensory
c. Premotor
d. Somatosensory association - Answers :Somatosensory association
10. The precentral gyrus (more rostral) is composed of the ____, while the postcentral
gyrus (more caudal) is composed of the _____.
a. Somatosensory area; primary motor area
b. Somatosensory association area; supplementary motor area
c. Primary motor area; somatosensory area
d. Primary motor area; supplementary motor area - Answers :Primary motor area;
somatosensory area
21. The point of communication between an axon of cell A and the dendrite of cell B is
the _.
a. Soma
b. Axon
c. Neurotransmitter
d. Synapse - Answers :D. Synapse
22. The ___ is responsible for increased nerve conduction velocity.
, a. Axon
b. Myelin sheath
c. Dendrite
D. Neurotransmitter - Answers :Myelin sheath
23. What is not a function of a glial cell?
a. Insulate axons
b. Transmit neurotransmitter into the neuromuscular junction
c. Phagocytosis following disease
d. Clear excess neurotransmitter - Answers :Transmit neurotransmitter into the
neuromuscular junction
24. The principle of dynamic polarization states that physiological signals within a nerve
cell only flow in one direction.
True/False - Answers :True
25. The cerebellum is considered ____ to the frontal lobe.
a. Rostral
b. Caudal
c. Anterior
d. Superior - Answers :Caudal
26. This forebrain structure is the "gatekeeper" of sensory information, responsible for
routing information to higher brain centers
a. Sensory cortex
b. Cerebellum
c. Thalamus
d. Olfactory lobe - Answers :Thalamus
27. The majority of neurons found in both the CNS and PNS are ___.
a. Efferent neurons
b. Afferent neurons
c. Association neurons
D. Interneurons - Answers :Interneurons
28. A bundle of nerve fibers running superior to inferior in the central nervous system
are referred to as a _____.
a. Ganglion
b. Nucleus
c. Tract
