Biod 152 exam 2 || with 100% Error-free Solutions.
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Biod 152
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Biod 152
This is the most superficial layer of the brain meninges. correct answers Dura mater (menix)
The ______ fissure separates the cerebrum from the cerebellum correct answers Transverse
What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level. correct answers...
Biod 152 exam 2 || with 100% Error-free Solutions.
This is the most superficial layer of the brain meninges. correct answers Dura mater (menix)
The ______ fissure separates the cerebrum from the cerebellum correct answers Transverse
What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level.
correct answers 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.
All the following are functions of the hypothalamus except:
A. Maintain homeostasis
B. Controls the pituitary gland
C. Links the nervous and endocrine systems
D. Relays sensory impulses to the cerebrum correct answers D
What is the largest portion of the brain?
A. Cerebellum
B. Cerebrum
C. Corpus collosum
D. Cingulate gyrus correct answers B. Cerebrum
This region of the brain acts to coordinate multiple sources of sensory information:
A. Primary sensory cortex
B. Primary motor cortex
C. Association area
D. Precentral gyrus
E. Postcentral gyrus correct answers C. Association area
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?
A. Broca's area
B. Wernicke's area
C. Occipital lobe
D. Parietal lobe
E. Primary sensory cortex correct answers B. Wernicke's area
Describe how memories are stored and retrieved in the brain. Include a specific brain region.
correct answers 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 emo!
onally charged events result in our most vivid memories.
, Which statement is false concerning the brainstem?
A. The medulla portion of the brainstem continuous with the spinal cord.
B. The medulla contains reflex centers to regulate vasoconstriction.
C. The midbrain contains the superior and inferior colliculi.
D. The midbrain helps to regulate breathing. correct answers D.
Which of the following is true concerning the cerebellum?
A. The gray ma!er is internal while the white mater is external.
B. The cerebellum works to plan body movements by relaying information spinal cord.
C. The anterior lobe receives information from the body trunk.
D. The vermis coordinates the trunk and shoulder movements. correct answers C
Which of the following is most likely a symptom of ALS?
A. Impaired ability to swallow
B. Decreased sensation in the hands
C. Shrinkage of cerebral cortex Increased size of brain ventricles
D. All the above correct answers A
Which of the following is true concerning a CVA?
A. An ischemic stroke is also known as a "brain bleed".
B. A TIA is a form of hemorrhagic stroke.
C. Stroke survivors never regain any lost function.
D. A hemorrhagic stroke is due to a broken blood vessel. correct answers D
A patient is unable to extend his fourth and fithh digits when asked to open his hand. What is
most likely the cause?
A. CVA in the frontal lobe
B. Carpal tunnel syndrome
C. Ulnar nerve damage
D. Anterior spinal cord injury correct answers C
Label the following spinal cord regions in the diagram below: (picture 1) correct answers 1:
Lateral Column
3: Gray Commissure
4: Anterior Column
6: Anterior/Ventral Horn
11: Ventral Root
What cranial nerve is highlighted in blue (also indicated by the arrow) in the figure below?
(picture 2)
A. Optic
B. Oculomotor
C. Trochlear
D. Abducens
E. Spinal Accessory correct answers D
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