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Head and Neck 1 > Motor Efferent Nuclei > Flashcards

Motor Efferent Nuclei Flashcards

1
Q

Edinger-Westphal Nucleus

A

CN III Oculomotor

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2
Q

Oculomotor Nucleus

A

CN III Oculomotor

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3
Q

Trochlear nucleus

A

CN IV Trochlear

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4
Q

Trigeminal Motor Nucleus

A

CN V Trigeminal

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5
Q

Adbucens Nucleus

A

CN VI Abucens

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6
Q

Facial Motor Nucleus

A

CN VII Facial

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7
Q

Superior Salivatory nucleus

A

CN VII Facial

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8
Q

Inferor Salivatory nucleus

A

CN IX Glossopharyngeal

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9
Q

Nucleus Ambiguus

A

CNs:
IX Glossophyngeal
X Vagus
XI: Accessory

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10
Q

Dorsal (vagal) motor nucleus

A

CN X Vagus

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11
Q

Hypoglossal nucleus

A

CN XII Hypoglossal

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12
Q

Spinal accessory nucleus

A

CN XI Accessory

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13
Q

Edinger-Westphal nucleus

A

CN III Oculomotor

  • Midbrain
  • Innervates sphincter pupillae (contstricts pupil) and ciliary muscle (accommodation)
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14
Q

Oculomotor Nucleus

A

CN III Oculomotor

  • midbrain
  • Innervates superior rectus, inferior rectus, medial rectus, inferior oblique, levator palpebrae superioris
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15
Q

Troclear nucleus

A

CN IV Abducens

  • midbrain
  • innervates superior oblique
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16
Q

Trigeminal motor nucleus

A

CN V Trigeminal

  • Pons
  • Medial to chief sensory
  • innervates the masseter, temporalis, medial pterygoid, lateral pterygoid, mylohyoid, anterior digastric, tensor tympani, tensor veli palatini (muscles of first pharyngeal arch)
17
Q

Abducens nuclei

A

CN VI Abducens

  • Pons
  • Innervates lateral rectus
18
Q

Facial Motor Nucleus

A

CN VIII Vestibulocochlear

  • Pons
  • Innervates muscles of facial expression, stylohyoid, posterior digastric, stapedius (muscles of second pharyngeal arch)
19
Q

Superior salivatory nucleus

A

CN VII Facial

  • Pons
  • Innervates lacrimal gland, nasal glands, submandibular and sublingual glands
20
Q

Inferior Salivatory nucleus

A

CN IX Glossopharyngeal

  • Pons
  • Innervates the parotid gland
21
Q

Nucleus Ambiguus

A

CNs:
IX Glossopharyngeal
X Vagus
XI Accessory

  • Medulla
  • Inervates muscles of soft palate, larynx, pharynx, upper esophagus
  • Unilateral lesion produces ipsilateral paralysis of soft palate, uvula deveate away from lesioned nerve, weakness of laryngeal muscles (hoarseness), pharyngeal weakness resulsting in difficulty swollowing
22
Q

Dorsal (vagal) motor nucleus

A

CN X Vagus

  • Medulla
  • Floor of 4th ventricle
  • Mojor Parasympathetic nucleus
  • supplies preganglionic fibers to thorax and abdominal viscera
23
Q

Hypoglossal Nucleus

A

CN XII Hypoglossal

  • Medulla
  • Innervates the genioglossus, hyoglossus, and styloglossus and intrinsic muscles of the tongue
24
Q

Spinal accessory nucleus

A

CN XI Accessory

  • Cervical Spinal Cord
  • Innervattes SCM and trapezius

Head and Neck 1 (10 decks)

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