Cranial Nerve CHART

Question 1

I

Answer 1

Cranial Nerve: Olfactory
• sensory
Origin: Cerebrum
Passage: Olfactory Foramina
Innervation:
• S.S: Sense of Smell

Question 2

II

Answer 2

Cranial Nerve: Optic
• Sensory
Origin: Cerebrum
Passage: Optic canal
Innervation:
• S.S: Vision

Question 3

III

Answer 3

Cranial Nerve: Occulomotor
• Motor
Origin: Midbrain
Passage: superior orbital fissure
Innervation:
• S.M: Eye Movement

Question 4

IV

Answer 4

Cranial Nerve: Trochlear
• Motor
Origin: Midbrain
Passage: Superior orbital fissure
Innervation:
• S.M: Eye Movement

Question 5

V

Answer 5

Cranial Nerve: Trigeminal
• Mixed
Origin: Pons
Passage: Superior orbital fissure
Innervation:
• S.M: mastication
• S.S: sensation to face

Question 6

VI

Answer 6

• Abducens
  • Motor
  Origin: Pons
  Passage: Superior orbital fissure
  Innervation:
  • S.M: Eye Movement

Question 7

VII

Answer 7

-Facial
• Mixed
Origin: Pons
Passage: Internal Acoustic Meatus
Innervation:
• S.M: Muscles of facial expression
• S.S: Anterior 2/3 tongue
• V.M: lacrimal / Salivary glands

Question 8

VIII

Answer 8

• Vestibulocohlear
  • Sensory
  Origin: Pons
  Passage: Internal Acoustic Meatus
  Innervation:
  • S.S: Hearing + Balance

Question 9

IX

Answer 9

• Glossopharyngeal
  • Mixed
  Origin: Medulla Oblongata
  Passage: Jugular Foramen
  Innervation:
  • S.M: Swallowing
  • S.S: Posterior Tongue
  • V.M: Salivary Gland
  • V.S: Blood Pressure

Question 10

X

Answer 10

• Vagus
  • Mixed
  Origin: Medulla Oblongata
  Passage: Jugular Foramen
  Innervation:
  • S.M: Muscles of pharynx / larynx (swallowing/ talking)
  • V.M: Heart / Lung / Digestive Tract
  • V.S: Internal organs thoracic / abdominal cavities

Question 11

XI

Answer 11

• Accessory
  • Motor
  Origin: Medulla Oblongata
  Passage: Jugular Foramen
  Innervation:
  • S.M: Muscles of the neck

Question 12

XII

Answer 12

• Hypoglossal
  • Motor
  Origin: Medulla Oblongata
  Passage: Jugular Foramen
  Innervation:
  • S.M: Tongue Movement