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NURS 5315 EXAM 4 REVIEW
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NURS 5315 EXAM 4 REVIEW
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NURS 5315 EXAM 4 REVIEWWhich pathway carries sensory information toward the central nervous system? -
Answers-Ascending
Which type of axon transmits a nerve impulse at the highest rate? - Answers-Large
myelinated
Which nerves are capable of regeneration? - Answers-Myelinated nerves in the
peripheral nervous system
The neurotransmitter norepinephrine is secreted in the: - Answers-Sympathetic
postganglion
Both oligodenroglia and Schwann cells share the ability to: - Answers-Form a myelin
sheath
Maintenance of a constant internal environment and the implementation of behavioral
patterns are main functions of which area of the brain? - Answers-Hypothalamus
The ability of the eyes to track moving objects through a visual field is primarily a
function of which colliculi? - Answers-Superior
What parts of the brain mediate the expression of affect, both emotional and behavioral
states? - Answers-Limbic system and prefrontal cortex
Reflex activities concerned with heart rate, blood pressure, respirations, sneezing,
swallowing, and coughing are controlled by which area of the brain? - Answers-Medulla
oblongata
From which part of the midbrain do cranial nerves V to VIII emerge? - Answers-Pons
From which part of the midbrain do cranial nerves IX to XII emerge? - Answers-Medulla
Oblongata
Which area of the brain assumes responsibility for conscious and unconscious muscle
synergy and for maintaining balance and posture? - Answers-Cerebellum
Which statement is true regarding upper motor neurons? - Answers-The modify spinal
reflex arcs
The membrane that separates the brain's cerebellum from it's cerebrum is the: -
Answers-Tentorium cerebelli
, The function of arachnoid villi is to: - Answers-Absorb cerebrospinal fluid into the
cerebral venous sinuses
Where is the cerebrospinal fluid produced? - Answers-Choroid plexuses
During a synapse, what change occurs after the neurotransmitter binds to the receptor?
- Answers-The permeability of the postsynaptic neuron changes; consequently its
membrane potential is changed as well.
What name is given to a large network of neurons within the brainstem that is essential
for maintaining wakefulness? - Answers-Reticular activating system
Thought and goal-oriented behaviors are functions of which area of the brain? -
Answers-Prefrontal Lobe
The region responsible for the motor aspects of speech is located in the: - Answers-
Broca area in the frontal lobe
Parkinson and Huntington disease are conditions associated with defects in which area
of the brain? - Answers-Basal ganglia
Which of the meninges closely adheres to the surface of the brain and spinal cord and
follows the sulci and fissures? - Answers-Pia mater
Norepinephrine produces what primary response? - Answers-Vasoconstriction
What is an effect of the sympathetic nervous system? - Answers-Increased blood sugar
levels
The brain receives approximately what percentage of the cardiac output? - Answers-
20%
The collateral blood flow to the brain is provided by the: - Answers-Circle of Willis
The nurse recognizes that a patient's diagnosis of a viral infection of the brain's
meningeal layer is supported by which diagnostic laboratory result? - Answers-
Leukocytes >10/mm3
Cognitive operations cannot occur without the effective functioning of the brain's: -
Answers-Reticular activating system
Which intracerebral disease process is capable of producing diffuse dysfuntion? -
Answers-Infarct emboli
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