CNS Part II Quiz:
1. Which meninx surrounding the brain is composed of two layers? (a fibrous layer and a deeper meningeal layer)
a. pia mater
b. dura mater
2. A needle passing through the skull into the brain would travel through the meninges in which order?
a. arachnoid mater, pia mater, dura mater
b. dura mater, arachnoid mater, pia mater
3. A cerebrovascular accident involving the occlusion of an artery supplying brain tissue is called
a. an ischemic stroke
b. a hemorrhagic stroke
4. A stroke that affects the somatic sensory association area of the brain would result in
a. inability to determine where on the body a sensory stimulus is occurring
b. inability to identify and name objects by touch
5. Put very simply, parkinson’s disease is characterized by
a. uncontrolled involuntary movements of the limbs
b. difficulty producing productive movement
6. A bundle of axons in the spinal cord traveling upward towards the brain is called a(n)
a. ascending tract
b. sensory spinal nerve
7. The cell bodies of which neurons are found in the ventral horn of the spinal cord?
a. lower motor neurons
b. 1st order sensory neurons
8. Where are the cell bodies of 3rd order neurons in the spinothalamic tract found?
a. the dorsal root ganglion
b. the thalamus
9. Which type of axons are found in the dorsal root?
10. A chain of neurons that begins in the primary motor cortex and innervates skeletal muscle fibers consists of ___ neurons
11. A severe injury to the anterior spinal cord is more likely to result in
a. lack of proprioception and discriminative touch below the lesion
b. inability to perceive temperature below the lesion
12. The spinal cord______ continue distally to the S5 level of the vertebral column.
b. does not
13. The term decussation refers to a spinal tracts tendency to
a. have its axons organized based on the location of their innervation
b. cross from one side of the spinal cord to the other
14. Typically most of the brain damage sustained during a TBI results
a. from the initial injury itself
b. from the swelling and hemorrhaging the occurs after the injury
15. A CVA that results in the occlusion of the arteries supplying broca’s area would result in
a. difficulty interpreting speech
b. difficulty producing speech