Cranial Nerves

Question 1

Acronym for Cranial Nerves

Answer 1

Oh Oh Oh To Touch And Feel Very Good Vagina Accesses Heave

Question 2

Acronym for Cranial Nerve Function Types

Answer 2

Some Say Marry Money But My Brother Says Big Brains Matter Most

Question 3

What are the 12 Cranial Nerves?

Answer 3

Olfactory, Optic, Oculomotor, Trochlear, Trigeminal Abducens , Facial, Vestibulocochlear, Glossopharyngeal , Vagus, Accessory, Hypoglossal

Question 4

What are the Cranial Nerve Function Types?

Answer 4

Sensory Sensory Motor Motor Both Motor Both Sensory Both Both Motor Motor

Question 5

Cranial Nerve 1

Answer 5

Olfactory
F: Smell (Sensory)
O: Roof of Nasal Cavity
Hole: Olfactory Foramen of Cribiform Plate of Ethmoid Bone

Question 6

Cranial Nerve II

Answer 6

Optic
F: Vision (Sensory)
Origin: Retina
Hole: Optic Canal (skull hole) to Optic Chiasm

Question 7

Cranial Nerve III

Answer 7

Oculomotor (Motor)
F: Eyeball movement, eyelid opening, control of pupil diameter, curvature of lens (help with focus) (4 of 6 muscles)
Origin: Midbrain
Hole: Superior Orbital Fissure

Question 8

Cranial Nerve IV

Answer 8

Trochlear (Motor)
F: Lateral Movement of Eyeball (Superior Oblique Muscle of Eye)
Origin: Midbrain
Hole: Superior Orbital Fissure
Smallest Cranial Nerve

Question 9

Cranial Nerve V

Answer 9

Trigeminal (Both)
F: Chewing (Mastication), Opening & Closing Jaw, Facial Sensation (Both)
Origin: Midbrain, Pons, Medulla Oblongata, & Spinal Cord
Hole: Ophalmic branch (smallest) = Superior Orbital Fissure, Maxillary Branch = Foramen Rotunda, & Mandibular Branch (largest) = Foramen O
Largest Cranial Nerve

Question 10

Cranial Nerve VI

Answer 10

Abducens (Motor)
F: Move Eyeball (Motor) only Lateral Abduction of Eyeball
Origin: Pons
Hole: Superior Orbital Fissure

Question 11

Cranial Nerve VII

Answer 11

Facial (Both)
F: Facial Expressions, secretion of saliva & tears, taste (anterior tongue)
Origin: Primarily in Pons (motor axons) & Taste Buds (sensory axons)
Hole: Internal Acoustic Meatus & Stylomastoid Foramen
Bells Palsy
Considered major motor nerve of head

Question 12

Cranial Nerve VIII

Answer 12

Vestibulocochlear (Sensory)
F: Hearing & Equilibrium
Origin: Pons & Medulla Oblongata
Hole: Internal Acoustic Meatus
Vestibular branch (Equilibrium) & Cochlear Branch (Hearing)

Question 13

Cranial Nerve IX

Answer 13

Glossophayngeal (Both)
F: Saliva Secretion, Swallowing & Speech, Taste (posterior tongue), Monitors BP, O2, & CO2 levels in blood, Touch/Pain/Thermal sensations in ear & upper pharynx, & Proprioception
Origin: Medulla Obolongata
Hole: Jugular Foramen

Question 14

Cranial Nerve X

Answer 14

Vagus (Both)
F: Swallowing, coughing, parasympathetic control of GI tract, heart, & respiratory. Visceral sensations, Proprioception, thermal sensations in ear
Origin: Medulla Oblongata
Hole: Jugular Foramen
Vagus= Vagrant or wander because so widely distributed
Main Parasympathetic cranial nerve

Question 15

Cranial Nerve XI

Answer 15

Accessory (Motor)
F: Movement of head & shoulders (Motor)
Origin: Cranial Part= Medulla Oblongata & Spinal Part= Cervical Spinal Cord
Hole: Cranial Part= Jugular Foramen & Spinal Part= Foramen Magnum

Question 16

Cranial Nerve XII

Answer 16

Hypoglossal (Motor)
F: Movement of tongue during speech & swallowing
Origin: Medulla Oblongata
Hole: Hypoglossal Canal

Question 17

What are the 3 Cranial Nerves responsible for eye movement?

Answer 17

Oculomotor (III)
Trochlear (IV)
Abducens (VI)

Question 18

What 3 cranial nerves have nuclei in the Pons & function?

Answer 18

1) Trigeminal (V)- Receive sensory impulses for face & provide motor impulses for chewing.
2) Abducens (VI) - Provide motor impulses for eyeball movement
Facial (VII)- Receive sensory impulses for taste & provide motor impulses for saliva & tear secretion and contraction of facial muscles
3) Vestibulocochlear (VIII) - Receive sensory impulses & provide motor impulses for balance and equilibrium.

Question 19

Which 5 cranial nerves have nuclei in the Medulla Oblongata & function?

Answer 19

1) Vestibulocochlear (VIII)- Receive sensory impulses & provide motor impulses for balance and equilibrium.
2) Glossopharyngeal (XI)- Relay sensory & provide motor impulses related to taste, swallowing, & salivation.
3) Vagus (X)- Receive sensory & provide motor impulses to pharynx, larynx, & thoracic/abdominal viscera.
4) Accessory (XI)
5) Hypoglossal (XII)- Provide motor impulses for tongue movements during speech & swallowing.

Question 20

What 2 cranial nerves have nuclei in the Midbrain & function?

Answer 20

1) Oculomotor (III)- Provide motor impulses that control eye movements
2) Trochlear (VI)- Provide motor impulses that control eye movements

Question 21

What are the 5 similar functions of cranial nerves IX & XI

Answer 21

1) Taste
2) Propriception
3) Thermal Sensations from skin of ear
4) Swallowing
5) Monitors BP, O2, & CO2 levels in blood

Question 22

What are the 7 differences in functions of cranial nerves IX & X?

Answer 22

1) Taste (IX = posterior 1/3 of tongue & X= from epiglottis)
2) Saliva Secretion (IX)
3) Vocalization & Coughing (X)
4) Constriction of Respiratory Passageways (X)
5) Decreases Heart Rate (X)
6) Thoracic & Abdominal organ sensations (X)
7) Motility & Excretion of digestive canal organs (X)