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T H E  C R A N I A L  N E R V E S
 

T H E C R A N I A L N E R V E S

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Cranial Nerves

Cranial Nerves

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    T H E  C R A N I A L  N E R V E S T H E C R A N I A L N E R V E S Presentation Transcript

    • E. Hilario, MD THE TWELVE PAIRS OF CRANIAL NERVES
      • PERIPHERAL NERVES ARISING FROM THE BRAIN
      • SENSORY, MOTOR OR MIXED NERVES
      • AUTONOMIC NERVES
    • CRANIAL NERVES
    • CRANIAL NERVES
      • I OLFACTORY
      • II OPTIC
      • III OCULOMOTOR
      • IV TROCHLEAR
      • V TRIGEMINAL
      • VI ABDUCENS
      • VII FACIAL
      • VIII VESTIBULOCOCHLEAR
      • IX GLOSSOPHARYNGEAL
      • X VAGUS
      • XI ACCESSORY
      • XII HYPOGLOSSAL
    • CRANIAL NERVES: CLASSIFICATION
      • PURELY SENSORY (AFFERENT)
        • CN I
        • CN II
        • CN VIII
      • PURELY MOTOR (EFFERENT)
        • CN III
        • CN IV
        • CN VI
        • CN XI
        • CN XII
      • MIXED (BOTH) SENSORY & MOTOR
        • CN V
        • CN VII
        • CN IX
        • CN X
    • CRANIAL NERVE I: OLFACTORY
      • ORIGIN:
        • OLFACTORY BULB
          • TO NASAL MUCOSA
      • FUNCTION:
        • SENSORY: SMELL
    • CRANIAL NERVE I: OLFACTORY CRIBRIFORM PLATE OF ETHMOID
    • CRANIAL NERVE I: OLFACTORY CRIBRIFORM PLATE OF ETHMOID
    • CRANIAL NERVE I: OLFACTORY CRIBRIFORM PLATE OF ETHMOID
    • CRANIAL NERVE I: OLFACTORY
    • CRANIAL NERVE II: OPTIC
      • ORIGIN:
        • OPTIC CHIASM
          • TO RETINA
      • FUNCTION:
        • SENSORY: VISION
    • CRANIAL NERVE II: OPTIC
      • OPTIC CANAL
      • WITH OPHTHALMIC ARTERY
    • CRANIAL NERVE II: OPTIC
      • OPTIC CANAL
      • WITH OPHTHALMIC ARTERY
    • CRANIAL NERVE II: OPTIC RETINA: RODS & CONES
    • CRANIAL NERVE II: OPTIC SNELLEN’S CHART
    • OPHTHALMOSCOPY
    • CRANIAL NERVE III: OCULOMOTOR
      • ORIGIN:
        • MIDBRAIN
      • FUNCTION:
        • MOTOR: EYE MOVEMENTS USING EXTRAOCULAR MUSCLES EXCEPT FOR LATERAL RECTUS & SUPERIOR OBLIQUE
        • PARASYMPATHETIC: PUPILLARY SPHINCTER & CILIARY MUSCLES OF THE LENS
    • CRANIAL NERVE III: OCULOMOTOR
    • CRANIAL NERVE III: OCULOMOTOR
      • OCULOMOTOR NERVE PARALYSIS
        • PTOSIS OF THE UPPER EYELID
    • CRANIAL NERVE III: OCULOMOTOR
      • AUTONOMIC FUNCTIONS:
        • PARASYMPATHETIC: PUPILLARY SPHINCTER & CILIARY MUSCLES OF THE LENS
    • CRANIAL NERVE IV: TROCHLEAR
      • ORIGIN:
        • MIDBRAIN
      • FUNCTION:
        • MOTOR: EYE MOVEMENTS USING SUPERIOR OBLIQUE
    • CRANIAL NERVE IV: TROCHLEAR
      • SUPERIOR ORBITAL FISSURE
        • WITH
        • OPHTHALMIC NERVE
        • OPHTHALMIC VEIN
        • OCULOMOTOR NERVE
        • ABDUCENS NERVE
    • CRANIAL NERVE IV: TROCHLEAR
      • SUPERIOR OBLIQUE MUSCLE
    • CRANIAL NERVE V: TRIGEMINAL
      • ORIGIN:
        • PONS
          • (VENTRAL SURFACE)
      • FUNCTION:
        • V1- OPHTHALMIC:
          • SENSORY: UPPER FACE
        • V2- MAXILLARY:
          • SENSORY: MIDFACE
        • V3- MANDIBULAR:
          • MOTOR: MUSCLES OF MASTICATION
          • SENSORY: LOWER FACE
    • CRANIAL NERVE V: TRIGEMINAL
      • FORAMINAE:
        • V1- OPHTHALMIC:
          • SUPERIOR ORBITAL FISSURE
        • V2- MAXILLARY:
          • FORAMEN ROTUNDUM
        • V3- MANDIBULAR:
          • FORAMEN OVALE
    • CRANIAL NERVE V: TRIGEMINAL
    • CRANIAL NERVE V: TRIGEMINAL
    • CRANIAL NERVE V: TRIGEMINAL
    • CRANIAL NERVE V3: MANDIBULAR
      • MUSCLES OF MASTICATION:
      • TEMPORALIS
      • MASSETER
      • MEDIAL PTERYGOID
      • LATERAL PTERYGOID
    • CRANIAL NERVE VI: ABDUCENS
      • ORIGIN:
        • PONS
          • LOWER MARGIN
      • FUNCTION:
        • MOTOR: EYE MOVEMENTS USING LATERAL RECTUS
    • CRANIAL NERVE VI: ABDUCENS
      • PARALYSIS OF LATERAL RECTUS
    • EXTRAOCULAR MUSCLES
    • NERVE SUPPLY TO THE EXTRAOCULAR MUSCLES: OCULOMOTOR N TROCHLEAR N ABDUCENS N
    • CRANIAL NERVE VII: FACIAL
      • ORIGIN:
        • PONS (LOWER MARGIN)
      • FUNCTION:
        • MOTOR: MUSCLES OF FACIAL EXPRESSION
        • SENSORY: TASTE IN THE ANTERIOR 2/3 OF THE TONGUE (CHORDAE TYMPANI)
        • PARASYMPATHETIC: LACRIMAL & SALIVARY (SUBMANDIBULAR & SUBLINGUAL) GLANDS
    • CRANIAL NERVE VII: FACIAL
      • TERMINAL BRANCHES
      • TEMPORAL
      • ZYGOMATIC
      • BUCCAL
      • MANDIBULAR
      • CERVICAL
    • CRANIAL NERVE VII: FACIAL MUSCLES OF FACIAL EXPRESSIONS
    • CRANIAL NERVE VII: FACIAL MUSCLES OF FACIAL EXPRESSIONS
    • CRANIAL NERVE VII: FACIAL FACIAL NERVE PARALYSIS
    • CRANIAL NERVE VII: FACIAL
      • CHORDA TYMPANI BRANCH
      • TASTE TO THE ANTERIOR TONGUE
    • CRANIAL NERVE I: FACIAL CHORDA TYMPANI
    • CRANIAL NERVE VII: FACIAL TASTE SENSATION TO THE ANTERIOR 2/3 OF THE TONGUE
    • NERVE SUPPLY TO THE SUBMANDIBULAR AND SUBLINGUAL GLANDS
    • DISTRIBUTION OF FACIAL NERVE
    • CRANIAL NERVE VIII: VESTIBULOCOCHLEAR
      • ORIGIN:
        • GROOVE BETWEEN PONS & MEDULLA OBLONGATA
      • FUNCTION:
        • VESTIBULAR (SENSORY): EQUILIBRIUM
        • COCHLEAR (SENSORY): HEARING
    • CRANIAL NERVE VIII: VESTIBULOCOCHLEAR
      • INTERNAL AUDITORY MEATUS
        • WITH FACIAL NERVE
      • DIVISIONS:
        • VESTIBULAR: EQUILIBRIUM
        • COCHLEAR: HEARING
    • VESTIBULO-COCHLEAR NERVE
    • VESTIBULAR NERVE: STATIC EQUILIBRIUM
    • VESTIBULAR NERVE: DYNAMIC EQUILIBRIUM
    • CRANIAL NERVE IX: GLOSSOPHARYNGEAL
      • ORIGIN:
        • MEDULLA OBLONGATA
      • FUNCTION:
        • MOTOR: STYLOPHARYNGEUS
        • SENSORY:
          • TASTE & ORDINARY SENSATION OF POSTERIOR 1/3 OF TONGUE
          • ORDINARY SENSATION OF PHARYNX, CAROTID SINUS & CAROTID BODY
        • PARASYMPATHETIC: PAROTID GLAND
    • CRANIAL NERVE IX: GLOSSOPHARYNGEAL
      • ORIGIN:
        • MEDULLA OBLONGATA
      • FUNCTION:
        • MOTOR: STYLOPHARYNGEUS
        • SENSORY:
          • TASTE & ORDINARY SENSATION OF POSTERIOR 1/3 OF TONGUE
          • ORDINARY SENSATION OF PHARYNX, CAROTID SINUS & CAROTID BODY
        • PARASYMPATHETIC: PAROTID GLAND
    • CRANIAL NERVE IX: GLOSSOPHARYNGEAL
      • ORIGIN:
        • MEDULLA OBLONGATA
      • FUNCTION:
        • MOTOR: STYLOPHARYNGEUS
        • SENSORY:
          • TASTE & ORDINARY SENSATION OF POSTERIOR 1/3 OF TONGUE
          • ORDINARY SENSATION OF PHARYNX, CAROTID SINUS & CAROTID BODY
        • PARASYMPATHETIC: PAROTID GLAND
    • CRANIAL NERVE X: VAGUS
      • ORIGIN:
        • MEDULLA OBLONGATA
      • FUNCTION:
        • MOTOR: PHARYNX & LARYNX
        • SENSORY:
          • EXTERNAL AUDITORY MEATUS
          • PHARYNX
          • LARYNX
          • AORTIC SINUS
          • THORACIC VISCERAE
          • ABDOMINAL VISCERAE
        • PARASYMPATHETIC: THORACIC & ABDOMINAL VISCERAE
    • CRANIAL NERVE X: VAGUS
    • CRANIAL NERVE X: VAGUS
      • ORIGIN:
        • MEDULLA OBLONGATA
      • FUNCTION:
        • MOTOR: PHARYNX & LARYNX
        • SENSORY:
          • EXTERNAL AUDITORY MEATUS
          • PHARYNX
          • LARYNX
          • AORTIC SINUS
          • THORACIC VISCERAE
          • ABDOMINAL VISCERAE
        • PARASYMPATHETIC: THORACIC & ABDOMINAL VISCERAE
    • CRANIAL NERVE XI: ACCESSORY
      • ORIGIN:
        • MEDULLA OBLONGATA
        • UPPER 5 CERVICAL SPINAL NERVES
      • FUNCTION:
        • MOTOR:
        • TRAPEZIUS
        • STERNOCLEIDOMASTOID
        • MUSCLES OF PHARYNX
        • MUSCLES OF LARYNX
    • ROOTS OF THE SPINAL ACCESSORY NERVE
    • SPINAL ACCESSORY NERVE
    • SPINAL ACCESSORY NERVE
    • CRANIAL NERVES IN THE JUGULAR FORAMEN
      • CN IX:
        • GLOSSOPHARYNGEAL
      • CN X:
        • VAGUS
      • CN XI:
        • SPINAL ACCESSORY
    • CRANIAL NERVES IN THE JUGULAR FORAMEN
      • CN IX:
        • GLOSSOPHARYNGEAL
      • CN X:
        • VAGUS
      • CN XI:
        • SPINAL ACCESSORY
    • CRANIAL NERVE XII: HYPOGLOSSAL
      • ORIGIN:
        • MEDULLA OBLONGATA
          • ANTERIOR LATERAL SULCUS BETWEEN OLIVE & PYRAMID
      • FUNCTION:
        • MOTOR: MUSCLES OF THE TONGUE
    • CRANIAL NERVE XII: HYPOGLOSSAL
      • HYPOGLOSSAL CANAL
    • CRANIAL NERVE XII: HYPOGLOSSAL
    • THE TWELVE CRANIAL NERVES
    • CRANIAL NERVES
      • CRANIAL FOSSAE
      • FORAMINAE
    • CRANIAL NERVES
    • CRANIAL NERVES
    • CRANIAL NERVES
    • CRANIAL NERVES