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Brain Impractical Uno

Brain Impractical Uno

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Brain Impractical Uno

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  1. Brain Impractical Uno Gross Brain Structures Compiled by MF Dauzvardis

  2. Cerebellum Covers the fourth ventricle, responsible for the initiation and planning of movement, cerebellar signs are ipsilateral, midline lobe is called vermis, highly crenated cortex is called “arbor vitae”, key cells = pyramidal, granular, and molecular

  3. Pineal Secretes melatonin, seat of the soul, biological clock?, third eye in some fishes and amphibians.

  4. Medulla Just rostral to cervical cord, contains critical breathing centers, fed by vertebral and pica arteries (lateral wallenberg syndrome when pica is blocked)

  5. Pons “bridge” Covered largely by the 4th ventricle and the cerebellum. Fed in part by the basilar artery, Many cortical pontine fibers end in the pontine gray nuclei which in turn project to the cerebellum via the MCP

  6. Midbrain Key features: cerebral peduncles, aqueduct of Sylvius, substantia nigra, tectum (inferior and superior colliculi) red nucleus, CN III, IV

  7. Fourth ventricle Contains csf, choroid plexuses, foramen luscka(lateral) and magendie(medial) lead to cisterna magna and subarachnoid space. CSF leaves midbrain via aqueduct of Silvius

  8. Aqueduct of Silvius Connects 4th ventricle to 3rd ventricle, obstruction can lead to hydrocephaly, surrounded by periaqueductal gray (PAG)—related to pain

  9. 3rd ventricle Filled with CSF, sits between thalami and enters hypothalamus, connects to lateral ventricles via foremen of monroe, contains some choroid and also the stria medullaris thalami which connect habenula to septal nuclei

  10. Tectum Consists of superior and inferior colliculi, don’t forget SLO-AIM

  11. Medulla Just rostral to cervical cord, contains critical breathing centers, fed by vertebral and pica arteries (lateral wallenberg syndrome when pica is blocked)

  12. Pons “bridge” Covered largely by the 4th ventricle and the cerebellum. Fed in part by the basilar artery, Many cortical pontine fibers end in the pontine gray nuclei which in turn project to the cerebellum via the MCP

  13. Midbrain Key features: cerebral peduncles, aqueduct of Sylvius, substantia nigra, tectum (inferior and superior colliculi) red nucleus, CN III, IV

  14. Cerebellum Covers the fourth ventricle, responsible for the initiation and planning of movement, cerebellar sighs are ipsilateral, midline lobe is called vermis, highly lobulated cortex is called “arbor vitae”, key cells = pyramidal, granular, and molecular

  15. 4th ventricle Contains csf, choroid plexuses, foramen luska(lateral) and magendi(medial) lead to cisterna magna and subarachnoid space. CSF leaves midbrain via aqueduct of Silvius

  16. Aqueduct Connects 4th ventricle to 3rd ventricle, obstruction can lead to hydrocephaly, surrounded by periaqueductal gray (PAG)—related to pain

  17. 3rd ventricle Filled with CSF, sits between thalami and enters hypothalamus, connects to lateral ventricles via foremen of monroe, contains some choroid and also the stria medullaris thalami which connect habenula to septal nuclei

  18. Tectum Consists of superior and inferior colliculi, don’t forget SLO-AIM

  19. Medulla

  20. Pons

  21. Midbrain, interpeducular fossa

  22. Cerebellum

  23. Temporal lobe

  24. mammillary bodies

  25. optic chiasm