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
That's 2 down. 3 left today — send the next one.