16 Jun MD University College BIOL 362 – Neurobiology Knowledge Inventory (Quiz) #7
Question
Neurobiology – Biology 362 – Knowledge Inventory (Quiz) #7
INSTRUCTIONS: Please read and refer to readings designated for this week to answer the questions below.
Knowledge Inventory (Quiz) #7 covers all required reading and media.
There are 20 Multiple Choice questions.
ANSWER in the My Tools/Quizzes and Exams for item Knowledge Inventory Seven. Submit only the
letter answers by the due date and time.
For Questions 1-3, reference weekly reading NervousSystemUnit14_AP_OLI, Module 54 pp. 411-416
and Module 56 pp. 456-457 (under Course Content/Nervous System Chapters).
Q1. Which arrangement described below is correct?
A. Motor and sympathetic nervous system axons exit the spinal cord gray matter as anterior nerve roots.
B. Sympathetic nervous system axons enter the spinal cord through dorsal root systems
C. Motor and sensory axons exit the spinal cord gray matter as anterior nerve roots.
D. Sensory axons enter the spinal cord through the anterior nerve roots.
E. Neurons from lateral horn of the spinal cord leave through anterior nerve roots to innervate skeletal muscle.
Q2. __________ contain the neurons of the sympathetic nervous system and is found at the
___________ and __________ levels/regions of the spinal cord.
A. Ventral (anterior) horn; sacral; cervical
B. Dorsal (posterior) horn; thoracic; lumbar
C. Lateral horn; thoracic; lumbar
D. Lateral horn; sacral; cervical
E. Both A and B
Q3. Which of the following is not an ascending spinal tract?
A. anterior spinocerebellar
B. spinoreticular
C. gracile fasciculus
D. lateral vestibulospinal
E. cuneate fasciculus
For Questions 4-5, reference http://faculty.washington.edu/chudler/spinal.html
Q4. Comparing the organization of gray and white matter in the spinal cord for sections through
cervical level and sacral level, which of the following statements is INCORRECT?
A. Cervical level has relatively more white matter than sacral level.
B. Sacral level is more circular than cervical level.
C. Cervical level gray matter in the dorsal horn is long and slender compared with broader, shorter gray at
sacral level.
D. Cervical level gray matter is H-shaped while sacral level gray matter is a flattened, U- or W-shape.
E. Cervical level gray matter exhibits an enlargement in the ventral horn.
Q5. The ___________ vertebra is named for a Titan from Greek mythology who carried the weight of
Earth on his shoulders.
A. C1
B. C2
C. C4
D. C5
E. C7
For Questions 6, reference http://www.sumanasinc.com/webcontent/animations/content/
reflexarcs2.html
Q6. A withdrawal reflex relies on the simultaneous activation of and ____________.
A. flexor muscles; extensor muscles
B. sensory neurons; motor neurons
C. interneurons; alpha motor neurons
D. sensory receptor; skeletal muscle
For Questions 7-11, reference weekly reading BIOL 362 Course Module Four (under Course Content/
Course Modules)
Q7. The activation of parasympathetic nervous system division of the autonomic nervous systems
causes a(n) in calcium and potassium currents in cardiac muscles.
A. increase
B. decrease
Q8. A ___________ is defined as a single motor neuron and all of the muscle fibers it innervates.
A. myosin
B. actin
C. sarcomere
D. sarcoplasmic reticulum
E. motor unit
Q9. In this type of reflex, a muscle on one side of the body will extend, compensating for the withdrawn
limb on the other side of the body.
A. gated reflex
B. central pattern generator
C. knee-jerk reflex
D. crossed-extensor reflex
E. monosynaptic reflex
Q10. Cortical neurons involved with motor output from the CNS can be found in all of the following
areas EXCEPT ____________.
A. premotor cortex
B. primary motor cortex
C. precentral gyrus
D. supplementary areas
E. prefrontal association areas
Q11. _______________ receives neural feedback about body, joint, and head position, refines motor
output, and also plays a role in cognitive function.
A. Cerebellum
B. Basal ganglia
C. Thalamus
D. Second-order neurons in the spinal cord
E. Primary motor cortex
For Questions 12-13, reference weekly reading
http://thebrain.mcgill.ca/flash/a/a_06/a_06_cr/a_06_cr_mou/a_06_cr_mou.html
Q12. _______________ of cerebral cortex includes the premotor cortex and supplementary motor
cortex.
A. Area 2
B. Area 6
C. Area 5
D. Area 4
E. Area 3
Q13. _______________ describes a clinical situation in which a patient tries to touch an object but has
delayed onset of hand movement and ultimately reaches beyond the target location.
A. Parkinson’s disease
B. Huntington’s chorea
C. cerebellar syndrome
D. hyperkinesia
E. apraxia
For Questions 14-18, reference weekly reading NervousSystem_OS Chapter 16 (under Course Content/
Nervous System Chapters)
Q14. _____________ is bleeding into the brain due to a damaged blood vessel.
A. Hypovolemia
B. Hemorrhagic stroke
C. Embolus
D. Amyotrophic lateral sclerosis
E. Aphasia
Q15. Which area of cerebral cortex is responsible for the ability to coordinate visual and motor
function such as needed to reach and pick up a glass of water?
A. Posterior parietal cortex
B. Area 22
C. Hippocampus
D. Area 39
E. Prefrontal cortex
Q16. H.M. was a patient who maintained short-term memory capacity but who lost the ability to form
new memories, i.e. to consolidate memory into long-term storage. This deficit was caused by
______________.
A. seizures due to epilepsy
B. bilateral surgical removal of both hippocampi in the temporal lobes
C. unilateral surgical removal of one hippocampus in the left temporal lobe
D. bilateral surgical removal of prefrontal cortices
E. hemorrhagic stroke
Q17. Short-term (working, active) memory is localized to _____________.
A. temporal lobe
B. hippocampus
C. prefrontal lobe of cerebral cortex
D. Area 2
E. Wernicke’s area
Q18. A patient experiences ____________ when speech production is compromised.
A. Wernicke’s aphasia
B. expressive aphasia
C. receptive aphasia
D. conduction aphasia
For Questions 19-20, reference weekly reading http://thebrain.mcgill.ca/flash/a/a_10/a_10_cr/
a_10_cr_lan/a_10_cr_lan.html
Q19. ____________ is involved in phonological and articulatory processing of words.
A. Angular gyrus
B. Precentral gyrus
C. Supramarginal gyrus
D. Temporal lobe
E. Lateral sulcus
Q20. Language acquisition in humans is based on human capacity for ___________.
A. neural plasticity in brain
B. multiple areas devoted to language
C. integration across the senses
D. abstraction and applying rules of syntax
E. integration of emotions into communications
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