Image 1 (Page 1 & 3)

Here's a review of your answers for the anatomy steeplechase exam:

Image 1 (Page 1 & 3)

• a) Identify the pinned cavity:
  • Student's Answer: Lateral ventricle
  • Verification: ✅ Correct
• b) Which secondary brain vesicle does it originate from?
  • Student's Answer: Telencephalon
  • Verification: ✅ Correct

Image 2 (Page 2)

• Name the pinned structure:
  • Student's Answer: Olfactory tract
  • Verification: ✅ Correct
• Name its major function:
  • Student's Answer: Perception of smell
  • Verification: ✅ Correct
• A lesion here leads to:
  • Student's Answer: Anosmia
  • Verification: ✅ Correct

Image 3 (Page 4)

• a) Identify the structure:
  • Student's Answer: Optic chiasm
  • Verification: ✅ Correct
• b) Lesion here leads to:
  • Student's Answer: Bitemporal hemianopia
  • Verification: ✅ Correct

Image 4 (Page 5)

• a) Identify the pinned structure:
  • Student's Answer: Caudate Nucleus
  • Verification: ✅ Correct
• b) A lesion here leads to:
  • Student's Answer: Chorea
  • Verification: ✅ Correct

Image 5 (Page 6)

• a) Identify the pinned cavity:
  • Student's Answer: Fourth ventricle
  • Verification: ✅ Correct
• b) Name its inflow:
  • Student's Answer: Aqueduct of Sylvius
  • Verification: ✅ Correct
• c) Name its outflow:
  • Student's Answer: Foramen of Magendie, Foramen of Luschka
  • Verification: ✅ Correct

Image 6 (Page 7 & 14)

• 8a) Identify this structure:
  • Student's Answer: Optic radiation
  • Verification: ✅ Correct
• b) What is the destination of axons arising from this structure?
  • Student's Answer: Visual Cortex
  • Verification: ✅ Correct
• c) What is its origin of the nerve fibre?
  • Student's Answer: LGB (Lateral Geniculate Body)
  • Verification: ✅ Correct

Image 7 (Page 8)

• a) Identify the green pinned structure:
  • Student's Answer: Cuneus
  • Verification: ✅ Correct
• b) Identify the yellow pinned structure:
  • Student's Answer: Calcarine sulcus
  • Verification: ✅ Correct

Image 8 (Page 9)

• Identify the pinned cortex:
  • Student's Answer: Visual Cortex
  • Verification: ✅ Correct
• Name the Brodmann's area:
  • Student's Answer: Area 17, 18, 19
  • Verification: ✅ Correct

Image 9 (Page 10)

• a) Identify the pinned structure:
  • Student's Answer: Inferior olive
  • Verification: ✅ Correct
• b) What is the destination of fibres arising from here?
  • Student's Answer: Cerebellum
  • Verification: ✅ Correct
• c) A lesion could lead to:
  • Student's Answer: Ataxia, Cerebellar dysfunction
  • Verification: ✅ Correct

Image 10 (Page 11)

• a) Identify the pinned structure:
  • Student's Answer: Trigeminal nerve
  • Verification: ✅ Correct
• b) Name its functional components:
  • Student's Answer: SVE, GSA
  • Verification: ✅ Correct

Image 11 (Page 12 & 25)

• a) Identify the pinned structure:
  • Student's Answer: Corpus callosum
  • Verification: ✅ Correct
• b) What type of fibres are in it?
  • Student's Answer: Commissural fibres
  • Verification: ✅ Correct
• c) What is its function?
  • Student's Answer: Links similar areas of the cerebral hemisphere
  • Verification: ✅ Correct

Image 12 (Page 13)

• Identify this structure:
  • Student's Answer: Internal capsule
  • Verification: ✅ Correct
• What type of fibres travel within it?
  • Student's Answer: Projection fibres
  • Verification: ✅ Correct
• What is its function?
  • Student's Answer: Links distant regions in the CNS
  • Verification: ✅ Correct

Image 13 (Page 15)

• a) Identify the pinned structure:
  • Student's Answer: Pyramids
  • Verification: ✅ Correct
• b) A lesion here leads to:
  • Student's Answer: Contralateral hemiparalysis/hemiplegia
  • Verification: ✅ Correct
• c) Name its component tract:
  • Student's Answer: Corticospinal tracts
  • Verification: ✅ Correct

Image 14 (Page 16)

• a) Name its embryonic origin of this structure:
  • Student's Answer: Metencephalon
  • Verification: ✅ Correct
• b) What connects it to the pons?
  • Student's Answer: Middle cerebellar peduncle
  • Verification: ✅ Correct

Image 15 (Page 17 & 23)

• a) Identify the pinned cortical/parietal structure:
  • Student's Answer: Precentral gyrus
  • Verification: ✅ Correct
• b) Name the major blood supply to this structure:
  • Student's Answer: Middle cerebral artery
  • Verification: ✅ Correct
• c) A lesion here leads to:
  • Student's Answer: Contralateral paralysis
  • Verification: ✅ Correct

Image 16 (Page 18)

• a) Identify the structure:
  • Student's Answer: Insula
  • Verification: ✅ Correct
• b) What is the type of its cortex?
  • Student's Answer: Archicortex
  • Verification: ❌ Incorrect
  • Explanation/Correction: The insula is part of the neocortex. Archicortex refers to older cortical structures like the hippocampus.
• c) How many layers are found in its cortex?
  • Student's Answer: Three
  • Verification: ❌ Incorrect
  • Explanation/Correction: As part of the neocortex, the insula typically has six layers.

Image 17 (Page 19)

• a) Identify the pinned structure:
  • Student's Answer: Internal capsule carotid artery
  • Verification: ❌ Incorrect
  • Explanation/Correction: The pinned structure is the Internal Carotid Artery. The internal capsule is a white matter structure, not an artery.
• b) Name its terminal branches:
  • Student's Answer: Anterior cerebral artery, Middle cerebral artery
  • Verification: ✅ Correct (These are indeed the terminal branches of the internal carotid artery).

Image 18 (Page 20)

• a) Identify the pinned structure:
  • Student's Answer: Lentiform nucleus
  • Verification: ✅ Correct
• b) Name its constituent nuclei:
  • Student's Answer: Globus Pallidus, Putamen
  • Verification: ✅ Correct

Image 19 (Page 22)

• Name the pinned area:
  • Student's Answer: Broca's Motor Speech Area
  • Verification: ✅ Correct
• What is its function?
  • Student's Answer: Articulation of speech
  • Verification: ✅ Correct
• A lesion here leads to:
  • Student's Answer: Expressive aphasia
  • Verification: ✅ Correct

Image 20 (Page 24)

• a) Identify this structure:
  • Student's Answer: Choroid plexus
  • Verification: ✅ Correct
• b) A tumor in it leads to:
  • Student's Answer: Hydrocephalus
  • Verification: ✅ Correct
• c) What is its function?
  • Student's Answer: Production of CSF
  • Verification: ✅ Correct

Image 21 (Page 26)

• a) Identify the pinned area:
  • Student's Answer: Wernicke's area
  • Verification: ✅ Correct
• b) A lesion here leads to:
  • Student's Answer: Receptive aphasia
  • Verification: ✅ Correct

Image 22 (Page 27)

• a) Identify the pinned structure:
  • Student's Answer: Substantia Nigra
  • Verification: ✅ Correct
• b) Name the neurons present in it:
  • Student's Answer: Dopaminergic neurons
  • Verification: ✅ Correct
• c) A lesion here leads to:
  • Student's Answer: Parkinson's disease
  • Verification: ✅ Correct

Image 23 (Page 28)

• a) Identify the pin structure:
  • Student's Answer: Oculomotor nerve
  • Verification: ✅ Correct
• b) What are the functional components?
  • Student's Answer: GSE, GVE
  • Verification: ✅ Correct
• c) Which muscles does it supply?
  • Student's Answer: Exoccular muscles
  • Verification: ✅ Correct (Minor spelling correction: Extraocular muscles)

Image 24 (Page 29)

• a) Identify the pinned structure:
  • Student's Answer: Hippocampus
  • Verification: ✅ Correct
• b) Name its type of cortex:
  • Student's Answer: Archicortex
  • Verification: ✅ Correct
• c) What are its function?
  • Student's Answer: Learning and memory/consolidation of memory
  • Verification: ✅ Correct
• d) Name its major projection fibre:
  • Student's Answer: Fornix
  • Verification: ✅ Correct

Image 25 (Page 30)

• Identify the pinned structure:
  • Student's Answer: Superior medullary velum
  • Verification: ✅ Correct

Image 26 (Page 31)

• a) Identify the pinned structure:
  • Student's Answer: Basilar artery
  • Verification: ✅ Correct
• b) Name its cerebellar branches:
  • Student's Answer: Superior Cerebellar Artery, Anterior Inferior Cerebellar Artery
  • Verification: ✅ Correct
• c) Name its terminal branches:
  • Student's Answer: Posterior cerebral artery
  • Verification: ✅ Correct