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ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
ANAT-321 DEMONSTRATOR LAB1
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ANAT-321 DEMONSTRATOR LAB1

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  • Transcript

    • 1. ANAT 321 REVIEW LABORATORY 1 NEUROANATOMY LAB
    • 2. BRAINSTEM VENTRAL VIEW MIDBRAIN medulla pons midbrain
    • 3. BRAINSTEM VENTRAL VIEW MIDBRAIN medulla pons midbrain Cerebral peduncle CN 3 CN 5 CN 6 Pyramid CN 9 CN 8 CN 7 CN 10 Inferior olive
    • 4. REVIEW: LAB 1
      • Question
        • What structure lies lateral to the pyramids?
      • Answer
        • The inferior olive
    • 5. REVIEW: LAB 1
      • Question
        • What cranial nerve exits ventrally between the cerebral peduncles?
      • Answer
        • Cranial nerve 3
    • 6. BRAINSTEM DORSAL VIEW w / out cerebellum
    • 7. BRAINSTEM DORSAL VIEW w / out cerebellum Superior colliculus Middle cerebellar peduncle Inferior cerebellar peduncle Nucleus gracilis Nucleus cuneatus 4 th ventricle inferior colliculus
    • 8. REVIEW: LAB 1
      • Question
        • Which cranial nerve lies between the pyramids and the inferior olives?
      • Answer
        • CN 12
    • 9. REVIEW: LAB 1
      • Question
        • What is the relationship between the cerebral peduncles and the pyramids?
      • Answer
        • The pyramids comprise the corticospinal fibres which are a white matter fibre pathway originating in the motor cortices. The fibres course through the internal capsule and then funnel down into the cerebral peduncles and then through the medulla.
    • 10. REVIEW: LAB 1
      • Question
        • Why are the cerebral peduncles larger than the pyramids?
      • Answer
        • There are more fibre tracts in the cerebral peduncles
    • 11. REVIEW: LAB1
      • Be sure that you understand the structure of the ventricular system in the medulla, pons, & midbrain
      • Answer
        • Ventricles are spaces in the brain filled with cerebral spinal fluid (CSF)
    • 12. REVIEW: LAB 1
        • Ventricles are spaces in the brain filled with cerebral spinal fluid (CSF)
      anterior posterior
    • 13. REVIEW: LAB 1
      • There are two lateral ventricles found in both cerebral hemispheres
      Lateral ventricles
    • 14. REVIEW: LAB 1
      • The walls of the third ventricle are formed by the thalamus
    • 15. REVIEW: LAB 1
      • CSF flows from the third ventricle through the midbrain to the fourth ventricle by the cerebral aqueduct
    • 16. REVIEW: LAB 1
      • The fourth ventricle is located dorsal to the pons and medulla
    • 17. REVIEW: LAB 1
      • Be sure that you understand the relationship of the cerebellum to the 4th ventricle and to the medulla and pons.
      • Answer
        • The cerebellum forms the roof of the 4th ventricle
    • 18. REVIEW: LAB 1
      • Be sure that you understand the relationship of the cerebellum to the 4th ventricle and to the medulla and pons.
      • Answer
        • The cerebellum is attached to the pons through the middle cerebellar peduncles and the medulla by the inferior cerebellar peduncles
    • 19. QUIZ
    • 20. A B C D
    • 21. Answer Key
        • A: cerebral peduncle
        • B: CN5
        • C:CN6
        • D: pyramid
    • 22. A B C D E
    • 23. Answer Key
        • A: superior colliculus
        • B: inferior colliculus
        • C: middle cerebellar peduncle
        • D: nucleus gracilis
        • E: fourth ventricle
    • 24. A B C D E
    • 25. Answer Key
        • A: pons
        • B: CN8
        • C: CN12
        • D: inferior olive
        • E: CN7

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