Chapter 9 Review Questions

1. 1Find the truth

   1. AThe occipital lobes of the cerebrum are involved with interpretation of taste
   2. BThe prosencephalon gives rise to the telencephalon and diencephalon
   3. CThe spinal cord ends in a conical projection called the conus medullaris at approximately T11/T12
   4. DPia mater is directly superficial to arachnoid mater and is adherent to the cerebral cortex
   5. EChoroid plexuses produce several hundred millimeters of CSF each day, but the CNS contains only about 375 ml of CSF at any given moment
2. 2Which of the following is mismatched with its function?

   1. Atemporal lobe of the cerebrum - interpretation of sound
   2. Binsular lobe of the cerebrum - integration of the other cerebral lobes
   3. Cparietal lobe of the cerebrum - general motor perception
   4. Dfrontal lobe of the cerebrum - verbal communication and thought
   5. Eoccipital lobe of the cerebrum - coordination of eye movements
3. 3Which of the following is not part of the spinal cord?

   1. Aanterior gray column
   2. Blumbosacral intumescence (enlargement)
   3. Cramus communicans
   4. Dcentral canal
   5. Elateral funiculus
4. 4Which of the following statements is true?

   1. AWhen electrical impulses pass from neuron to neuron, saltatory conduction has occurred
   2. BMyelin is the lipid found in myelin sheaths that surround many of the axons in the PNS and CNS
   3. CGroups of neuronal processes within the brain and spinal cord are called nerves
   4. DHemiplegia is a condition where the contralateral limbs are paralyzed
   5. ECVA's are caused by blockage or rupture of coronary vessels
5. 5Find the truth

   1. AOne of the functions of the CNS is transducing various forms of energy to motor impulses
   2. BBipolar neurons have one dendrite, one axon, and are found in the retina of the eye, in the middle ear, and in the oral mucosa
   3. CPseudounipolar neurons are the least numerous afferent neurons
   4. DMultipolar neurons have a single dendrite and numerous axons
   5. EThe ANS is formed by parts of the PNS and CNS
6. 6Which of the following major parts of the brain is mismatched with a function(s)

   1. Athalamus - relay center for most sensory information
   2. Bmesencephalon - a reflex center for audition and vision and contains motor nuclei for the oculomotor and trochlear nerves
   3. Ccerebellum - coordination of smooth muscle activity
   4. Dpons - a bridging connection between the medulla and mesencephalon
   5. Emedulla (oblongata) - decussation (crossing over) of motor and sensory fiber tracts passing to and from the spinal cord
7. 7Which of the following statements is false?

   1. AThe gray matter of the spinal cord is penetrated by the central canal (of the spinal cord)
   2. BThe spinal cord widens in the cervical and lumbosacral regions
   3. CNeurons pass neurotransmitters to other neurons, to muscle cells, or to glandular epithelium
   4. DAcetylcholine and norepinephrine are common neurotransmitters in the PNS
   5. EChoose this response if all the above are true
8. 8Find the false statement

   1. ANasal mucosa and deep body organs contain visceral afferent (VA) fibers
   2. BThe majority of SA and VA neurons are bipolar neurons
   3. CSomatic afferent (SA) neurons carry impulses from the internal ear, skin, joints, and muscles to the CNS
   4. DVisceral efferent (VE) neurons are multipolar neurons which form a two neuron chain to smooth and cardiac muscle tissues and glandular epithelium
   5. ESomatic efferent (SE) neurons are multipolar neurons that carry impulses to skeletal muscle tissue
9. 9Which item is false?

   1. AAn outrush of potassium ions causes repolarization which re-establishes the resting charge of a neuron and the neuron once again becomes relatively impermeable to both sodium and potassium ions
   2. BSufficient stimulation of neurons allows sodium ions to diffuse back into their cytoplasm and causes a momentary rise in the electrical potential called depolarization
   3. CWhen depolarization reaches a critical level called threshold, and impulse travels throughout the neuron
   4. DThe sodium-potassium pump uses active transport to move sodium ions into neurons
   5. EChoose this response if all the above are true
10. 10Find the false statement

    1. AMicroglia are phagocytic cells within the brain and spinal cord
    2. BAstrocytes form the blood/brain barrier
    3. COligodendrocytes form myelin sheaths around axons within the CNS
    4. DEpendymal cells line the ventricles of the brain and the central canal of the spinal cord
    5. ESatellite cells are associated with ganglia located in the brain

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Quiz on Chapter 9 Review Questions, created by Amanda Sparks on 27/09/2016.

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Amanda Sparks

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