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ANATOMY SEM3 > A5 > Flashcards

A5 Flashcards

1
Q

What are the three trigeminal nuclei?

A

Chief - Touch and Pressure

Mesencephalic - proprioception

Spinal - Pain and Temperature

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2
Q

What is the function and route of CN I?

A

Smell

Nasal mucosa > cribiform plate of ethmoid bone > olfactory bulb > primary olfactory cortex

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3
Q

What is the function and route of CN II?

A

Vision

Retina > optic canal > chiasm > optic tract > LGN > optic radiation > visual cortex

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4
Q

What is the function and route of CN III?

A

Motor for LPS, IO, SR, IR and MR

Ventral midbrain > diaphragmatic sellae > cavernous sinus > superior orbital fissure

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5
Q

What is the function and route of CN IV?

A

motor for SO

Dorsal midbrain > tentorium cerebelli > cavernous sinus > superior orbital fissure

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6
Q

What is the function and route of CN V?

A

Sensory to face and tongue; and motor to muscles of mastication

Pons > middle cranial fossa > three branches exist at: V1 - SO fissure; V2 - IO fissure; V3 - foramen ovale

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7
Q

What is the function and route of CN VI?

A

Motor to LR

Pontinomedullary junction > dura mater > cavernous Sinus > SO Fissure

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8
Q

What is the function and route of CN VII?

A

Motor to facial expression and sensory for taste in ant. 2/3 of tongue

Pons-medullary junction > posterior cranial fossa > internal auditory meatus > stylomastoid foramen

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9
Q

What are the branches of the Facial nerve?

A

Temporal

Zygomatic

Bucal

Mandibular

Cervical

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10
Q

What is the function and route of CN VIII?

A

Auditory and equilibrium

Pons-Medullary junction > posterior cranial fossa > internal auditory meatus > split into vestibular and cochlear nerves

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11
Q

What is the function and route of CN IX?

A

Swallowing reflex, sensory to post. 1/3 tongue, gag reflex, parotid gland

Lateral aspect of medulla > posterior cranial fossa > jugular foramen

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12
Q

What is the function and route of CN X?

A

Structures of head, neck, thorax and abdomen

Lateral aspect of medulla > posterior cranial fossa > jugular foramen > carotid sheath of the neck >abdomen at oesophageal hiatus of diaphragm

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13
Q

What is the function and route of CN XI?

A

Sternocleidomastoid and trapezius muscles

Upper 6 segments of spinal cord > foramen magnum to unite with cranial root > posterior cranial fossa > jugular foramen

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14
Q

What is the function and route of CN XII?

A

Motor to muscles of the tongue

Medulla between pyramid and olives > posterior cranial fossa > hypoglossal canal > passes through mylohyoid and hypoglossus muscle > lateral to genioglossus muscle

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ANATOMY SEM3 (14 decks)

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