Physiology 2Module 2 Exam Accurate &
verified
One of your patients sustained a hemorrhagic CVA. You notice they have rigid movements when
moving their arms. They also have difficulty forming a plan to move their body. What area of the
brain is most likely impacted? Explain your reasoning.
The basal ganglia is responsible for executing a motor plan and to slow and control fine movements
(creating the rigid movements).
Apraxia, or impaired motor planning. Apraxia results in rigid movements and difficulty executing a
motor plan.
The _______ fissure separates the right and left cerebral hemispheres.
Median longitudinal
What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level.
The blood-brain barrier is a diffusion barrier which prevents most particles from entering the
central nervous system tissue, keeping the brain and spinal cord separate from general blood
circulation. The blood-brain barrier is formed by the relatively impermeable brain capillaries, due
to the glial cells astrocytes. Maintenance of the blood-brain-barrier is important to provide a stable
chemical environment for the nervous system.
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Physiology 2Module 2 Exam Accurate &
verified
A patient is having difficulty understanding language but is still able to speak fluently. The patient's
dermatomes are intact. Which area of the brain is most likely damaged?
B. Correct! Wernicke’s area
Describe how memories are stored and retrieved in the brain. Include a specific brain region.
Memories are not stored in one specific area within the brain but instead are stored throughout the
cerebral hemispheres. The hippocampus acts as a memory center to help with memory storage and
retrieval. The involvement of the limbic system explains why emotionally charged events result in
our most vivid memories.
Which statement is false concerning the brainstem?
A. Correct! The midbrain portion of the brainstem is continuous with the spinal cord.
Which of the following is false concerning the cerebellum?