1. Orbital branches of anterior cerebral artery 2



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Identify the following arteries:
9:

10:


11:

13:


15:

17:


24:

25:


32:
What is the name of the cranial nerve that runs between arteries 13 and 15?

What does it do?


Arteries and anastomoses

1. Orbital branches of anterior cerebral artery 2. Orbital branches of middle cerebral artery 3. Orbital sulci and gyri 4. Olfactory bulb 5. Olfactory tract 6. Straight gyrus 7. Olfactory trigone 8. Anterior communicating artery 9. Anterior cerebral artery 10. Middle cerebral artery 11. Internal carotid artery 12. Optic chiasma 13. Posterior communicating artery 14. Infundibulum 15. Posterior cerebral artery 16. Oculomotor nerve 17. Superior cerebellar artery 18. Parahippocampal gyrus 19. Medial occipitotemporal gyrus 20. Occipitotemporal sulcus 21. Lateral occipitotemporal gyrus 22. Pontine branch of basilar artery 23. Trigeminal nerve 24. Basilar artery 25. Labyrinthine artery 26. Abducens nerve 27. Vestibulocochlear nerve 28. Facial nerve 29. Anterior inferior cerebellar artery (AICA) 30. Flocculus 31. Posterior inferior cerebellar artery (PICA) 32. Right vertebral artery 33. Anterior spinal artery 34. Ventral rootlets of 1st cervical nerve

What is the structure beneath the number 17 responsible for?

What type of information runs in this pathway?
What is structure 7 responsible for?
What types of problems would damage to structure 6 cause?
What is structure 8 (NOT a cranial nerve)?
What pathway crosses at number 19?
1. Oculomotor nerve 2. Interpeduncular fossa 3. Basis pedunculi 4. Basilar sulcus of pons 5. Motor (minor) root of trigeminal nerve 6. Sensory (major) root of trigeminal nerve 7. Abducens nerve 8. Middle cerebellar peduncle 9. Vestibulocochlear nerve 10. Facial nerve 11. Flocculus 12. Choroid plexus protruding through lateral aperture of 4th ventricle (foramen of Luschka) 13. Glossopharyngeal nerve 14. Vagus nerve 15. Accessory nerve 16. Olivary nucleus 17. Pyramidal tract 18. Hypoglossal nucleus 19. Pyramidal decussation

What is structure 13?


1. Superior medullary velum 2. Lingula 3. Central lobule 4. Culmen 5. Primary fissure 6. Declive 7. Folium vermis 8. Tuber vermis 9. Pyramis vermis 10. Uvula 11. Posterolateral fissure 12. Nodulus 13. Middle cerebellar peduncle 14. Flocculus 15. Inferior semilunar lobule 16. Tonsil 17. Biventral lobule

What is the name of the structure located at structure 1 (space)?

What type of information crosses in this area?
Which cistern is located at number 16?
1. Chiasmatic cistern 2. Optic nerve 3. Internal carotid artery 4. Cistern of middle cerebral artery 5. Anterior lobe of pituitary gland 6. Posterior lobe of pituitary gland 7. Oculomotor nerve 8. Trochlear nerve 9. Interpeduncular cistern 10. Trigeminal nerve 11. Pontine cistern 12. Basilar artery 13. Abducens nerve 14. Posterior inferior cerebellar artery 15. Left vertebral artery 16. Cerebellomedullary cistern (cisterna magna)

Identify the following cranial nerves:


2:

3:

8:



9 (NOT cranial nerve):

13 (between two major arteries):

18:

19:


21:

22:


23:

24:


25:
1. Frontal pole of left cerebral hemisphere 2. Olfactory bulb 3. Olfactory tract 4. Orbital gyri and sulci 5. Straight gyrus 6. Temporal pole of left cerebral hemisphere 7. Olfactory trigone 8. Optic nerve 9. Optic chiasma 10. Anterior (rostral) perforated substance 11. Optic tract 12. Tuber cinereum with infundibulum 13. Oculomotor nerve 14. Mamillary body 15. Uncus of parahippocampal gyrus 16. Basis pedunculi 17. Basilar sulcus of pons 18. Trigeminal nerve 19. Abducens nerve 20. Pyramid of medulla oblongata 21. Facial nerve 22. Vestibulocochlear nerve 23. Glossopharyngeal nerve 24. Vagus nerve 25. Cranial roots of accessory nerve 26. Spinal roots of accessory nerve 27. Rootlets of hypoglossal nerve 28. Flocculus 29. Ventral rootlets of 1st cervical spinal nerve 30. Pyramidal decussation

What are the name of the structures labeled at number 3?

What causes these? Do they have a function?


Arachnoid granulations

Calcifications – increase with age




What is the function of the structure labeled 10?
What is the function of the structure labeled 9 (this is NOT stained tissue)?


1. Olfactory bulb 2. Orbital sulci and gyri 3. Olfactory tract 4. Gyrus rectus 5. Olfactory trigone 6. Optic chiasma 7. Tuber cinereum with infundibulum 8. Mamillary body 9. Posterior (interpeduncular) perforated substance 10. Basis pedunculi 11. Substantia nigra 12. Superior cerebellar peduncle 13. Mesencephalic (cerebral) aqueduct 14. Pineal body 15. Splenium of corpus callosum 16. Rhinal sulcus 17. Parahippocampal gyrus 18. Medial occipitotemporal gyrus 19. Lateral occipitotemporal gyrus 20. Collateral sulcus 21. Occipitotemporal sulcus 22. Lingual gyrus


What is the name of the covering of the brain viewed above?
What types of hemorrhage would occur if you were to rupture artery 1?

What types of deficits would you expect in this patient?


Dura Mater

Epidural – herniation into temporal lobe

Potentially could have language or hearing problems

Provide the name and function of each of the following structures:


5:

11:


17:

21:
1. Superior sagittal sinus 2. Arachnoid granulations 3. Falx cerebri 4. Inferior sagittal sinus 5. Corpus callosum 6. Septum pellucidum 7. Tela choroidea of 3rd ventricle 8. Thalamus 9. Great cerebral vein 10. Straight sinus of tentorium cerebelli 11. Tectum of midbrain 12. Anterior cerebral artery 13. Tentorium cerebelli 14. Interpeduncular cistern 15. Confluence of sinuses 16. Superior cerebellar peduncle 17. Pons 18. Pituitarygland 19. Pontine cistern 20. Nasal septum 21. Medulla oblongata 22. Cerebellomedullary cistern (cisterna magna) 23. Posterior arch of atlas




Identify the general location of this brain slice:
Identify the structure and function:
3:

5:

6:



9:
15:
1. Dorsal median sulcus 2. Gracile fasciculus 3. Gracile nucleus 4. Cuneate fasciculus 5. Cuneate nucleus 6. Spinal tract of trigeminal nerve 7. Dorsal spinocerebellar tract 8. Spinal (inferior) nucleus of trigeminal nerve 9. Hypoglossal nucleus 10. Ventral spinocerebellar tract 11. Internal arcuate fibers 12. Decussation of medial lemnisci 13. Medial accessory olivary nucleus 14. Fibers of hypoglossal nerve 15. Pyramidal tract 16. Ventral median fissure

Identify the following structures and functions:


1:

2:

5:



7:

13:


15:

17:
1. Hypoglossal nucleus 2. Dorsal vagal nucleus 3. Medial vestibular nucleus 4. Caudal (inferior) vestibular nucleus and vestibulospinal tract 5. Solitary nucleus of solitary tract 6. Solitary tract 7. Spinal nucleus of trigeminal nerve 8. Spinal tract of trigeminal nerve 9. Inferior cerebellar peduncle 10. Medial longitudinal fasciculus with tectospinal tract 11. Dorsal accessory olivary nucleus 12. Fibers of olivocerebellar tract 13. Inferior olivary nucleus 14. Hilus of inferior olivary nucleus 15. Medial lemniscus and olivocerebellar fibers 16. Medial accessory olivary nucleus 17. Pyramidal tract




Identify the following structures and functions:


1:

3:

8:



17:

18:


19:

1. Vermis of cerebellum 2. Dentate nucleus 3. 4th ventricle 4. Abducens nucleus 5. Genu of facial nerve 6. Facial colliculus 7. Lateral vestibular nucleus 8. Spinal nucleus oftrigeminal nerve 9. Spinal tract of trigeminal nerve 10. Facial nucleus 11. Medial longitudinal fasciculus 12. Reticular formation 13. Fibers of facial nerve 14. Centraltegmental tract 15. Medial lemniscus and trapezoid body 16. Superior olive and lateral lemniscus 17. Middle cerebellar peduncle 18. Pontine nuclei and transverse pontocerebellar fibers 19. Corticospinal and corticobulbar fibers

Identify the following structures and functions:

1:

2:

5:



6 (hint: 5 and 6 are related to the same cranial nerve):

10:


11:
1. Gracile fasciculus 2. Cuneate fasciculus 3. Gracile nucleus 4. Cuneate nucleus 5. Spinal nucleus of trigeminal nerve 6. Spinal tract of trigeminal nerve 7. Central canal 8. Dorsal spinocerebellar tract 9. Ventral spinocerebellar tract 10. Decussation of the pyramids (motor) 11. Pyramidal tract

Identify the following structures and functions:


3:

10:


12:

15:


17 (grape-like stuff):

18:


22:


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