Download WBUHS MBBS First Year WBUHS Anatomy Paper II 2024 December Question Paper

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The West Bengal University of Health Sciences
MBBS 1^st Professional Examination (New Regulation),
November - December 2024

Attempt all questions. The figures in the margin indicate full marks.

1. a) A child presented with pain and watery discharge from right ear following sore throat.
   1. What is the route of spread of infection from throat to ear?
   2. Describe the anterior wall of middle ear cavity with a labelled diagram.
   3. What is tympanic plexus?
   4. Describe the lateral wall structures of middle ear with its clinical importance.

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   1+6+2+6

   b) A young boy presents to the ENT OPD with history of swallowing of fish bone while eating, followed by pain in the tonsillar region and persistent earache.
   1. Explain the above situation.
   2. Describe the nerve involved under the following headings: deep nuclear origin, intracranial course, exit from skull, extracranial course, parasympathetic ganglia in relation to it.
   3. Describe the pathway of taste sensation till the gustatory area in the cortex.

   3+(2+1+1+3+2)+3

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2. a) What are the specialties of the fourth cranial nerve? Draw a flow chart to show the pathway of the nerve. What is Horner's syndrome?

   3+5+2

   b) Enumerate the ventricles of the brain. Describe the circulation of the CSF. Mention the components of the blood brain barrier. Write a note on blood CSF barrier.

   1+4+2+3

   c) Enumerate the ligaments of Temporo-mandibular joint. Discuss the mechanism of depression movement.

   5+5

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3. Write short notes on the following:

   2x5

   1. Structure of retina with diagram.
   2. Mosaicism and chimerism.
4. Explain the following statements:

   5x4

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   1. A gradually increasing lateral cystic swelling in the neck not present at birth.
   2. Patient with pituitary tumor suffers from bitemporal hemianopia.
   3. Injury to the superior gluteal nerve shows the positive trendelenberg's sign.
   4. Calcarine sulcus represents limiting, axial as well as complete sulcus.
   5. Pricking of a furuncle on face leads to cavernous sinus thrombosis and medial squint of eye.

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5. Choose the correct option for each of the following:

   10x1

   1. Regarding spinal cord, which one of the following statements is not correct?
      1. Spinal cord is a continuation of brain and begins from the upper border of 1^st cervical vertebra.
      2. In a child aged less than 2 year, the cord ends at the level of lower border of 3^rd lumbar vertebra.
      3. Lateral horn cells are characteristically present in the cervical and lumbar segments of the spinal cord.

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      4. Arterial supply of the spinal cord are from anterior spinal; posterior spinal; and from supplementary radicular arteries entering the cord.
   2. Regarding posterior inferior cerebellar artery mark the wrong statement:
      1. It is usually a branch of vertebral artery.
      2. It is commonly a branch of basilar artery.
      3. It is typically a highly tortuous artery supplying the cerebellum and allied structures.

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      4. It takes part in formation of choroid plexus of the 4th ventricle.
   3. Superior laryngeal artery and internal laryngeal nerve pass:
      1. Between superior and middle constrictor muscles of pharynx.
      2. Between middle and inferior constrictor muscles of pharynx.
      3. Between inferior constrictor muscles of pharynx.

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      4. Between superior constrictor muscles of pharynx and base of the skull.
   4. The lining epithelium of vocal fold is:
      1. Simple squamous.
      2. Pseudo-stratified ciliated columnar.
      3. Stratified squamous non-keratinised.

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      4. Simple cuboidal.
   5. Tip of the nose is supplied by:
      1. Infraorbital nerve.
      2. Infratrochlear nerve.
      3. Zygomatico facial nerve.

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      4. External nasal nerve.
   6. Root value of inferior gluteal nerve:
      1. Dorsal branches of ventral rami of L5, S1,S2.
      2. Ventral branches of ventral rami of L5, S1,S2.
      3. Dorsal branches of ventral rami of L4, L5, S1.

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      4. Ventral branches of ventral rami of L4, L5,S1.
   7. Major transmembrane protein in Zonula Adherens is:
      1. Claudins.
      2. Integrins.
      3. E-cadherins.

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      4. Selectins.
   8. Second pharyngeal pouch gives rise to:
      1. Stapedius.
      2. Palatine tonsil.
      3. Auditory tube.

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      4. Thymus.
   9. Inversion of the foot is performed by which pair of muscles?
      1. Peroneus longus and peroneus brevis.
      2. Peroneus longus and tibialis posterior.
      3. Tibialis anterior and tibialis posterior.

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      4. Peroneus brevis and plantaris.
   10. Damage to pre-ganglionic parasympathetic fibres to tympanic plexus will result in:
       1. Diminished mucus in nasal cavity.
       2. Diminished mucus in soft palate.
       3. Diminished saliva production by parotid gland.

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       4. Diminished salivation from sublingual gland.

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