CENTRAL NERVOUS SYSTEM [CNS] TUTORIAL DISCUSSION

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CENTRAL NERVOUS SYSTEM [CNS] TUTORIAL DISCUSSION

Dr. Zahoor

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Q.1 What is organization of CNS?

Q2. What are four types of Glial cells? Give

function of each cell.

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GLIAL CELLS

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Q3. Where is CSF present? What is its

function?

Q4. What is hydrocephalus?

Q5. What is Blood Brain Barrier?

Q6.Brain function depends on two important

things. Name them.

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Q7. What we mean by

i). Diencephalon

ii). Brain stem

Q8. Where is Respiratory center present?

Q9. What is gray matter of brain?

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Q10. What is white matter of brain?

Q11. Name the four lobes of cerebral

hemisphere.

Q12. Where is motor cortex located?

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Q13. If left motor cortex is damaged, where

paralysis will occur?

Q14. Where is sensory cortex situated?

Q15. If there is damage to right sensory cortex,

where sensory deficit will occur?

Q16. In which lobe visual area is present?

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REFLEXESTUTORIAL

DISCUSSIONDr. Zahoor

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Q1. What is Reflex?

Q2. What are the components of reflexes?

Q3. Name the five components of reflex,

taking knee jerk as example.

Q4. Name two monosynaptic reflexes.

Q5. Name two polysynaptic reflexes.

Q6. What is Babiniski sign?

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Q7.What is center for biceps jerk and ankle

jerk?

Q8. What is function of α motor neuron and γ motor

neuron?

Q9. What is the function of dorsal and ventral

horn cell in spinal cord?

Q10. Where does spinal cord ends?

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SENSORY SYSTEMTUTORIAL

DISCUSSIONDr.Zahoor

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Q1. What is receptor and what is receptor

potential?

Q2. a). Name the Mechano receptors.

b). Name the two fast adopting receptors.

c). Name two non adopting or slow adopting

receptors.

Q3. What are the receptors for pain and

temperature?

Q4. What is nocireceptor and polymodal pain

receptors?

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Q5. What fibers carry fast pain, and slow pain?

Q6. Sensation carried by sensory nerve, enter

where in the spinal cord?

Q7. What is function of dorsal horn and ventral

horn in the spinal cord?

Q8. Name the sensory tracts and what

sensation they carry?

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Q9. Draw the dorsal or posterior column.

Q10. Draw the ventrolateral spinothalamic tract.

Q11. If there is hemisection of spinal cord at right T12

level, what sensation will be lost on

1. same side

2. opposite side

3. where motor paralysis will occur?

Q12. How body is represented in the sensory cortex?

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Q13. Which parts of the body has more

representation in the sensory cortex? Why?

Q14. If sensory cortex is destroyed, can the

person still feel the pain?

Q15. If sensory cortex is destroyed, can he

localize the site of pain?

Q16. What are functions of sensory cortex?

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Q17. Small receptive field has more

discrimination or large receptive field?

Q18. What is phantom limb?

Q19. What is referred pain? Give two

examples.

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MOTOR SYSTEMTUTORIAL

DISCUSSIONDr. Zahoor

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Q1. Where is motor cortex situated?

Q2. From where sensory motor cortex gets the

decision?

Q3. What is function of primary motor cortex?

Q4. How body is represented in the motor

cortex?

Q5. Pyramidal tract arise from where, and

where do they cross?

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Q6. Name the extra pyramidal tracts.

Q7. Extra pyramidal tracts get information

from where?

Q8. Extra pyramidal tracts send message

where ?

Q9. What are the main functions of extra

pyramidal tracts?

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Q10. Give four differences between

pyramidal and extra pyramidal tract.

Q11. What is UMN?

Q12. What happens in UMN? Select one

Hypertonia/Hypotonia

Q13. What is difference between UMN and

LMN?

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Thank you