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Cerebellum

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Cerebellum. Located in the posterior fossa of the intracranial space. ... Divided into the midbrain, pons, Medulla Oblangata, and the Reticular Activity System. ... – PowerPoint PPT presentation

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Title: Cerebellum


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Cerebellum
  • Located in the posterior fossa of the
    intracranial space.
  • Responsible for movement and coordination.

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Brain Stem
  • Stem-like portion of the brain that controls
    vegetative functions ( i.e. respiration's, heart
    rate), and connects the brain to the spinal cord.
  • Divided into the midbrain, pons, Medulla
    Oblangata, and the Reticular Activity System.

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Midbrain
  • Involved in hearing and visual reflexes.

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Pons
  • Relays information from the cerebrum to the
    cerebellum.
  • Houses the sleep center and the respiratory
    center, which along with the medulla controls
    breathing.

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Medulla Oblangata
  • Located between the pons and spinal cord.
  • Contains the centers that control heart rate,
    respiration's, and constriction of vessel walls.

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Reticular Activity System
  • Responsible for consciousness.
  • Keeps us alert and out of trouble.
  • Involved in sleep-wake cycle.

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12 Cranial Nerves
  • I. Olfactory - Sense of smell.
  • II. Optic - Vision.
  • III. Oculomotor - Eye movements.
  • IV. Trochlear - Eye movements.
  • V. Trigeminal - Sensations of face, scalp and
    teeth, chewing movements.
  • VI. Abducens - Turning eyes outwards.

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12 Cranial Nerves
  • VII. Facial - Sense of taste, facial expressions.
  • VIII. Acoustic - Hearing, sense of balance.
  • IX. Glossopharyngeal - Sensation of throat, taste
    swallowing movements, secretion of saliva.

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12 Cranial Nerves
  • X. Vagus - Sensations of throat and larynx and of
    thoracic and abdominal organs, swallowing, voice
    production, slowing of heartbeat, acceleration of
    peristalis (muscle contractions).
  • XI. Spinal Accessory - Shoulder movements,
    turning of the head.
  • XII. Hypoglossal - Tongue movements.

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12 Cranial Nerves
  • Cranial nerves do not cross. Therefore, a right
    cranial nerve insult will result in right sided
    deficit.

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