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NR546 exam with solutions
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NR546 exam with solutions
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NR546 exam with solutionsNeuroscience - ANSWER: ➡ is the study of the structure and function of the brain
and is a field which is making great advancements
Gray Matter - ANSWER: ➡ The cerebellum
cerebrum,
brain stem,
and the butterfly-shaped portion of the central spinal cord is comprised of
______matter which contains neural cell bodies, axon terminals, dendrites, and all
nerve synapses.
associated with learning
Changing linked to psychiatric diagnoses including Alzheimer's disease,
schizophrenia, and major depressive disorder
White matter - ANSWER: ➡ contains nerve fibers that connect neurons from
different regions into functional circuits.
The myelin that coats neuronal axons is necessary for electrical impulse
transmission.
Think of the white matter as a transit system. If there are breaks in the system, then
people cannot get to their destinations.
Within the brain, these breaks affect neural communication, affecting behavior.
Damage to the myelin can impair transmission which can impact not only sensory
and motor function, but also cognition
. White matter abnormalities are associated with autism and vascular dementia.
, Frontal Lobes - ANSWER: ➡ are associated with movement, intelligence, abstract
thinking. the ability to organize, personality, behavior, and emotional control.
Traumatic brain injuries can result in personality changes, difficulty controlling
emotions, and other cognitive functions.
Central Sulcus - ANSWER: ➡ This separates the frontal lobe from the parietal lobe.
Parietal Lobe - ANSWER: ➡ The middle part of the brain, responsible for
proprioception, is the home of the somatic senses.
This part of the brain helps a person to identify spatial relationships, interpret pain
and touch in the body, and identify and give meaning to objects.
Damage to the anterior portion of the parietal lobe may cause asterogenesis, the
loss of ability to recognize objects via the sense of touch. This may be experienced
by patients with post cerebral vascular accidents
Temporal Lobe - ANSWER: ➡ is located on the sides of the brain and involved in
short-term memory, speech, auditory signals, and smell recognition. It identifies
"what" things are - object identification.
It contains the limbic system, amygdala, and hippocampus. There are multiple
pathways within the temporal lobe which affect object identification and language
comprehension, including the ability to understand semantics.
A dominant temporal lobe lesion can present as Wernicke's aphasia. Temporal lobe
disorders include dementia, affective disorders, and attention deficit hyperactivity
disorders (ADHD).
Occipital Lobe - ANSWER: ➡ This is the back part of the brain and controls visual
processing. Damage to this lobe results in the inability to form visual memories.
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