ospe answers

8/8/2019 OSPE Answers

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OSPE model answers

Spot Q1 Q2

1 Anterior lobe of cerebellum Muscle tone & superior cerebellar A.

2 Cerebellar tonsil AICA

3 4th ventricle Superior medullary velum- back of

cerebellum- Inferior medullary velum

4 Anterior limb of internal capsule Anterior thalamic radiation and frontopontine

fibers

5 Genu of internal capsule Corticobulbar fibers

6 Posterior limb of internal capsule

(Thalamolenticular part)

Superior thalamic radiation – frontopontine

fibers – Corticospinal fibers

7 Retrolenticular part of internal

capsule (Optic radiation)

Occipitopontine fibers- parieto pontine fibers-

optic radiation

8 Forceps major Commissural fibers

9 Forceps minor Commissural fibers

10 Anterior horn of lateral ventricle Roof: body of corpus callosum

Floor: Rostrum and head of caudate

11 Lentiform nucleus

12 Head of caudate

13 Insula Middle cerebral A. & deep middle cerebral vein

14 Posterior horn of lateral ventricle Forceps major forming bulb of posterior horn

& Calcaravis formed by calcarine sulcus

15 Thalamus Head of caudate- body of lateral ventricle-

Stria terminalis

16 Optic canal Optic nerve & ophthalmic artery

17 Superior orbital fissure Oculomotor N. – Trochlear nerve – Superior & inferior ophthalmic veins

18 Internal acoustic meatus Facial N. & Vestibulocochlear N.

19 Jugular foramen Glossopharyngeal N. – Vagus N. – Accessory N.

20 Hypoglossal canal Hypoglossal N.

21 Foramen magnum Medulla oblongata- Vertebral A.s – Anterior &

posterior spinal A.s



22 Crista galli Apex of falx cerebri

23 Lesser wing of sphenoid Sphenoparietal sinus

24 Internal occipital crest Related: occipital sinus

Attached: falx cerebelli

25 Inferior orbital fissure Infraorbital N. – Infraorbital vessels –

zygomatic N.26 External occipital protuberance Trapezius & Nuchal ligament

27 Superior nuchal line Trapezius & sternomastoid muscles

28 Lateral rectus Abducent N. - lateral rotation of the eye

29 Optic nerve Ophthalmic artery – Superior ophthalmic vein

– Nasociliary N.

30 Superior oblique Trochlear N. – Depression & lateral rotation of

the eye31 Superior rectus Oculomotor N. – Rotation of the eye upwards &

medially

32 Levator palpebrae superioris Oculomotot N. – elevation of upper eyelid

33 Basis Pontis Transverse pontine fibers

34 Middle cerebellar peduncle Corticopontocerebellar –

Cerebellopontocerebellar fibers35 Pyramid Above: Abducent N.

Laterally: Hypoglossal N.

36 Olive Inferior olivary nucleus

37 Inferior cerebellar peduncle Above: Vestibulocochlear

To the front: Glossopharyngeal- Vagus &

Accessory N.s

38Axis Dens

–

Alar ligament & Apical ligament39 Atlas No body & no spine

40 Buccinator Buccal N. & parotid duct

41 Orbicularis oris Facial N. – making lips circular

42 Orbicularis oculi Orbital – palpebral – lacrimal parts

43 Facial artery Superior labial, inferior labial & lateral nasal



44 Sternomastoid muscle Spinal part of accessory – tilting head to same

side & turning face to opposite side

45 Scalenus anterior

46 Scalenus medius

47 Common carotid A. At the level between C3 & C4

At the level of upper thyroid cartilage48 External carotid A. Superficial temporal – Posterior Auricular-

Occipital

49 Internal carotid A. Ophthalmic artery, Anterior cerebral & Middle

cerebral A.s

50 Internal jugular vein facial, lingual and occipital veins

51 Levator scapulae

52 Mylohyoid muscle Nerve to mylohyoid53 Anterior belly of digastric Nerve to mylohyoid

54 Posterior belly of digastric Facial nerve

55 Vagus Nerve Meningeal, auricular & pharyngeal

56 Hypoglossal nerve Muscular branches to all muscles of the tongue

except palatoglossus

Carries C1 supplying thyrohyoid & geniohyoid

57 Transverse sulcus Attached: Attached margin of Tentoriumcerebelli

Related: Transverse sinus

58 Petrous part of temporal bone Attached: Attached margin of Tentorium

cerebelli

Related: Superior petrosal sinus

59 Anterior clinoid process Free margin of tentorium cerebelli

60Clivus Basilar artery & abducent N.

61 Precentral gyrus Primary motor area – Middle cerebral A except

upper 1 inch by anterior cerebral

62 Postcentral gyrus Primary sensory area - Middle cerebral A

except upper 1 inch by anterior cerebral

63 Broca’s area Motor speech area – middle cerebral A.

64 Middle frontal gyrus Frontal eye field area – middle cerebral A.



65 Superior temporal gyrus Primary auditory area & auditory association

area – middle cerebral A.

66 Genu of corpus callosum Anterior cerebral A. – falx cerebri – inferior

sagittal sinus

67 Medial frontal gyrus Part of prefrontal area plays a role in

concentration, attention & behavior – AnteriorCerebral A.

68 Cingulate gyrus Part of limbic system – Anterior cerebral A.

69 Callosal sulcus Anterior cerebral A. – falx cerebri – inferior

sagittal sinus

70 Paracentral lobule Motor & sensory to the foot & perineum –

Anterior Cerebral A.

71 Cuneus area Vision – posterior cerebral A.72 Lingual gyrus Vision – posterior cerebral A.

73 Precuneus area Vision – anterior cerebral A.

74 Rectus gyrus Olfaction – middle cerebral A.

75 Uncus Olfaction – posterior cerebral A.

76 Parahippocampus Olfaction – posterior cerebral A.

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