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2: Module 2 Exam 2023
This layer of the meninges is tightly attached to the brain. - correct answer Pia mater (menix)
The _______ fissure separates the right and left cerebral hemispheres. - correct answer Median
longitudinal What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level. -
correct answer 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: - correct answer A. Maintain
homeostasis B. Controls the pituitary gland C. Links the nervous and endocrine systems D. Correct! Relays sensory impulses to the cerebrum
What is the largest portion of the brain? - correct answer A. Cerebellum
B. Correct! Cerebrum C. Corpus collosum D. Cingulate gyrus
This region of the brain acts to coordinate multiple sources of sensory information. - correct answer
A. Primary sensory cortex B. Primary motor cortex C. Correct! Association area D. Precentral gyrus E. Postcentral gyrus
2: Module 2 Exam 2023
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? - correct answer A. Broca's
area B. Correct! Wernicke's area C. Occipital lobe D. Parietal lobe E. Primary sensory cortex
Describe how memories are stored and retrieved in the brain. Include a specific brain region. - correct
answer 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? - correct answer A. Correct! The midbrain
portion of the brainstem is continuous with the spinal cord. B. The pons helps to regulate breathing. C. The midbrain contains the superior and inferior colliculi. D. The medulla contains reflex centers to regulate vasoconstriction.
Which of the following is false concerning the cerebellum? - correct answer A. The gray matter is
external while the white mater is internal. B. Correct! The cerebellar peduncles are located posteriorly. C. The anterior lobe receives information from the body trunk. D. The vermis coordinates arm movements.
Alzheimer's disease impacts which region(s) of the brain? - correct answer A. Occipital lobe
B. Frontal lobe
2: Module 2 Exam 2023
What cranial nerve is highlighted in blue (also indicated by the arrow) in the figure below? - correct
answer A. Optic
B. Oculomotor C. Trochlear D. Correct! Abducens E. Spinal Accessory What type of nerve is the cranial nerve below and what does it control? (Highlighted in blue, also
indicated by the arrow) - correct answer A. Mixed: Sensation of digestive tract and Regulation of
heart rate B. Motor: Tongue movement C. Sensory: Hearing/balance D. Correct! Mixed: Facial muscles and Taste
Which of the following is true about the trigeminal nerve? - correct answer A. The mandibular
branch receives sensory information from taste buds. B. The ophthalmic branch controls eye movements. C. Correct! The maxillary branch receives information from the upper lip. D. The maxillary branch controls the muscles of mastication. Use the figure below to answer the following questions. Answer by writing the letter (A-J) from the figure that corresponds with the correct cranial nerve. This cranial nerve receives information from the retina. This cranial nerve is responsible for the sensation of the digestive tract. This cranial nerve controls movement of the eye laterally. This cranial nerve receives sensory information for hearing.
This cranial nerve is responsible for voluntarily moving the tongue. - correct answer 1. B. (Optic)
- I. (Vagus)
2: Module 2 Exam 2023
- E. (Abducens)
- G. (Vestibulocochlear)
- J. (Hypoglossal Label the nerves (A-C) in the figure below: A: _________________ B: _________________
C: _________________ - correct answer A-Radial
B- Ulnar C- Median
The lumbar plexus is from spinal nerves: - correct answer A. Correct! T12-L
B. L04- S
C. C01-C
D. L01-S
A patient is on a ventilator post a car accident. What region of the spine is most likely damaged? -
correct answer A. L01-L
B. S01-S
C. T01-T
D. Correct! C03-C
A patient damaged the radial nerve. What action is most likely limited? - correct answer A. Elbow
flexion B. Hip extension C. Wrist flexion D. Correct! Wrist extension
2: Module 2 Exam 2023
A patient comes into the ER following an accident. She is scared and starting to hyperventilate. You talk with her in a calm, reassuring manner as she receives medical care. You are trying to increase the activity
in which division of her nervous system? Explain your answer. - correct answer You are trying to
increase the activity of the parasympathetic nervous system as it is also sometimes called the "housekeeper system" because it promotes all the internal responses we associate with a relaxed state. The parasympathetic system also acts to slow the heart rate. If someone sustains an injury to the area of the spinal cord, as shown below by the blue oval, would you
be more likely to see paralysis or decreased sensation? Explain your answer. - correct answer You
would be more likely to see decreased sensation because sensory neurons enter the spinal cord posteriorly. 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. - correct answer 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.
