SAQ suggestions for CNS and EYEBALL

1. CSF- Def, formation, circulation, absorption, function. What is hydrocephalus? Types.2. Spinal cord- Def tracts. Name various tracts of spinal cord. Draw and label cross

section of spinal cord at mid-thoracic/mid-cervical level showing various tracts. Write down blood supply of spinal cord. Define UMN and LMN. Difference between UMN and LMN. What is Brown Sequard Syndrome?

3. Draw and label cross section of brain stem at the level of superior colliculus/inferior colliculus/pyramidal decussation.

4. Reticular formation-Def, function.5. Cerebellum-Histological structure, morphological and functional divisions with

functions. Name deep cerebellar nuclei. Short note on cerebellar syndrome, cerebellar peduncles.

6. Fourth ventricle-Floor7. Cerebrum-Histological structure of cortex, Lobes-boundary, functional areas, their

functions, effects of lesion, blood supply. Short note on white matter of cerebrum, corpus callosum.

8. Diencephalon-Parts, Thalamus-nuclei, functions. Hypothalamus-functions.9. Basal nuclei-def, parts, function10. Limbic system-Def, components, functions11. Pyramidal tract-def, course, termination, function, effect of lesion.12. Short note-Internal capsule, basal nuclei, BBB, BCB, circle of Willis.13. Name refractive medias of eyeball. Layers of cornea, retina14. Short note on aqueous humor, Horner’s syndrome, Argyll Robertson pupil. 15. Visual pathway, pathway of light reflex and accommodation reflex. What is direct and

consensual light reflex? Effect of lesion of visual pathway.

MCQ CNS & EYEBALLDr. Ashfaq

1. Brain stem includes- 6. Spinal cord is kept in position by-a midbrain a CSFb pons b filum terminalec cerebellum c ligamentum denticulatumd medulla oblongata d subdural capillary fluide spinal cord e rostral continuity with medulla

2. Spinal cord- 7. Regarding pain from the limbs-a is located within whole vertebral canal a receptor is free nerve endingb presents primitive organization of grey

and white matterb second order neurons lie in nucleus

gracilis and cuneatusc is the part of hind brain c its relay occur in ventral posteromedial

nucleus of thalamusd has a uniform diameter d it passes through anterior spinothalamic

tracte contains nuclei of spinal accessory

nerves e the ultimate goal is post central gyrus

3. Gray matter is composed of- 8. Sympathetic stimulation results in-a neuron a dilatation of pupilb microglia b reduction of heart ratec fibrous astrocyte c rise of blood pressured capillaries d constriction of bronchie lymph vessels e contraction of external anal sphincter

4. Unipolar neurons are found in- 9. Bipolar neurons are found in-a spiral ganglion a retinab trigeminal ganglion b olfactory mucosac geniculate ganglion c dorsal root gangliond mesencephalic nucleus d vestibular ganglione sympathetic ganglion e trigeminal ganglion

5. Functional components of spinal nerves are-

10. Primitive organization of grey and white matter is observed in-

a GSA a cerebrumb GVE b cerebellumc SSA c midbraind SVE d ponse GVA e spinal cord

11. Cranial nerve nuclei within midbrain 16. Transverse section of midbrain at

are- superior colliculus level presents-a mesencephalic nucleus a trochlear nucleusb Edinger-Westphal nucleus b Edinger-Westphal nucleusc lacrimatoty nucleus c red nucleusd trochlear nucleus d ventral tegmental decussation e inferior salivatory nucleus e lateral lemniscus

12. Examples of glial cells include- 17. Regarding sympathetic nervous system-a pituicyte a it is called thoraco-lumbar outflowb ependymocyte b it acts in fright, flight and fightc amacrine cell c it is essential for lifed Muller’s cell d it causes cutaneous vasodilatatione pyramidal cell e it causes secretion of sebaceous gland

13. The tracts carrying touch sensation are- 18. Secretions of posterior pituitary are-a anterior spinothalamic tract a prolactinb lateral spinothalamic tract b oxytocinc tract of Gall c vasopressind tract of Burdach d ADHe spinocerebellar tract e somatostatin

14. Tracts in lateral spinal funiculus are- 19. Oligodendrocytes-a anterior spinocerebellar tract a are the smallest central glial cellsb anterior spinothalamic tract b develop from neural tubec olivospinal tract c form myelin sheath in the CNSd tectospinal tract d are present only in white matter e spinotectal tract e form blood-CSF barrier

15. Facial nerve is- 20. Astrocytes-a the 5th cranial nerve a are star shapedb a mixed cranial nerve b are found only in grey matter c a special sense containing cranial

nervec provide nutrition and structural support

d a sympathetic fiber containing cranial nerve

d develop from mononuclear phagocytic system

e the nerve of 2nd branchial arch e form blood brain barrier

21. Dorsal part of diencephalon includes- 26. Nucleus ambiguus-a thalamus a is a motor nucleusb subthalamus b represent special visceral efferent

columnc epithalamus c is developed from alar plated hypothalamus d contain unipolar neuronse metathalamus e is functionally related to 5th, 7th and 9th

cranial nerves.

22. Sensory speech area includes- 27. Circle of Willis is-a area 39 a an arterial anastomotic circleb area 49 b formed by potential anastomosisc area 44 c situated within subarachnoid spaced area 45 d situated within pontine cistern

e area 22 e joined by middle cerebral arteries

23. Uveal tract of eyeball includes- 28. Neostriatum includes-a sclera a caudate nucleusb choroid b putamenc ciliary body c globus pallidusd retina d red nucleuse iris e claustrum

24. Long association fibers include- 29. Visual cortex-a cingulum a is located in occipital lobe of cerebral

hemisphereb uncinate fasciculus b includes Brodmann area 44 and 45c corpus callosum c is supplied by middle cerebral arteryd corticopontine fibers d is the thinnest part of cerebral cortexe fronto-occipital fasciculus e receives impulse from both eyes

25. Ventral postero-medial nucleus of thalamus receives afferents from-

30. Cerebellum-

a spinal lemniscus a is a part of hind brainb medial lemniscus b is located in the infra-tentorial

compartment of posterior cranial fossac lateral lemniscus c controls contra-lateral side of the bodyd trigeminal lemniscus d is connected to pons through middle

cerebellar pedunclese nucleus of tractus solitarius e produces resting tremor when damaged

12. Archicerebellum includes- 17. Deep cerebellar nuclei are-a flocullus a globos nucleusb nodule b emboliformnucleusc pyramid c dentate nucleus d uvula d red nucleuse lingual e spinal nucleus