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Cranial Nerves

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Mind Map on Cranial Nerves, created by lucy.hammond1 on 19/04/2014.
lucy.hammond1
Mind Map by lucy.hammond1, updated more than 1 year ago
lucy.hammond1
Created by lucy.hammond1 about 10 years ago
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Resource summary

Cranial Nerves
  1. I
    1. Olfactory
      1. Special sense
        1. Cribriform plate
          1. Tract in brain
            1. Olfactory bulb
          2. II
            1. Optic
              1. Special sense
                1. Optic canal
                  1. Tract in brain
                    1. Retina
                  2. III
                    1. Oculomotor
                      1. Carries parasympathetic
                        1. cilary ganglion
                          1. Iris constrictor
                        2. Special motor
                          1. Superior branch
                            1. Superior rectus
                              1. Levator palpebrae superioris
                              2. Inferior branch
                                1. Medial rectus
                                  1. Inferior rectus
                                    1. Inferior oblique
                                  2. Orbital fissure
                                    1. Leaves at midbrain
                                  3. IV
                                    1. Trochlear
                                      1. Special motor
                                        1. Superior oblique
                                          1. Depression and elevation
                                            1. Extortion and intortion
                                          2. Orbital fissure
                                            1. Rostral pons
                                              1. Only to leave from dorsal surface
                                          3. V
                                            1. Trigeminal
                                              1. Mixed
                                                1. i Opthalmic
                                                  1. Orbital fissure
                                                  2. ii Maxillary
                                                    1. Foramen Rotundum
                                                    2. iii Mandibular
                                                      1. Only one to contain motor
                                                        1. Foramen ovale
                                                        2. Enters at lateral ventral pons
                                                          1. First Pharyngeal arch
                                                        3. VI
                                                          1. Abducens
                                                            1. Special motor
                                                              1. Lateral Rectus
                                                                1. Abduction
                                                              2. Enters at brainstem
                                                                1. Orbital fissure
                                                              3. VII
                                                                1. Facial
                                                                  1. Carries parasympathetic secretormotor
                                                                    1. Salivary glands
                                                                      1. Lacrimal gland
                                                                      2. Second pharyngeal arch
                                                                        1. Mixed
                                                                          1. Special sense
                                                                            1. Anterior part of tongue
                                                                            2. Motor
                                                                              1. Facial muscles
                                                                            3. Enters between pons and medulla
                                                                              1. Internal acoustic meatus
                                                                            4. VIII
                                                                              1. Vestibulocochlear
                                                                                1. Special sense
                                                                                  1. Vestibular
                                                                                    1. Balance
                                                                                    2. Cochlear
                                                                                      1. Hearing
                                                                                      2. Enters lateral to facial neve
                                                                                        1. Internal acoustic meatus
                                                                                      3. IX
                                                                                        1. Glossopharyngeal
                                                                                          1. Carries parasympathetic
                                                                                            1. Third pharyngeal arch
                                                                                              1. Mixed
                                                                                                1. Motor
                                                                                                  1. Pharynx
                                                                                                    1. Stylopharyngeus
                                                                                                  2. Sensory
                                                                                                    1. Special and general
                                                                                                      1. Posterior third of tongue and pharynx
                                                                                                  3. Enters rostral to to CN8
                                                                                                    1. Jugular foramen
                                                                                                  4. X
                                                                                                    1. Vagus
                                                                                                      1. Carries parasympathetic
                                                                                                        1. Thorax
                                                                                                          1. Upper abdomen
                                                                                                          2. 4th and 6th pharyngeal arches
                                                                                                            1. Mixed
                                                                                                              1. Enters caudal to CN9
                                                                                                                1. Jugular foramen
                                                                                                              2. XI
                                                                                                                1. Accessory
                                                                                                                  1. Cranial accessory
                                                                                                                    1. Vagus
                                                                                                                      1. Supplies head structures in vagus area
                                                                                                                      2. Enters at lateral medulla
                                                                                                                      3. Spinal accessory
                                                                                                                        1. Supplies craniocervical muscles
                                                                                                                          1. Sternocleidomastoid
                                                                                                                            1. Trapezius
                                                                                                                            2. Enters at C1-C5
                                                                                                                            3. Jugular foramen
                                                                                                                          2. XII
                                                                                                                            1. Hypoglosal
                                                                                                                              1. Motor
                                                                                                                                1. Tongue
                                                                                                                                  1. All intrinsic
                                                                                                                                    1. Most extrinsic
                                                                                                                                  2. Emerges from ventrolateral medulla
                                                                                                                                    1. Hypoglossal foramen
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