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Anatomy 2 > Cranial Fossae and Cranial Nerves > Flashcards

Cranial Fossae and Cranial Nerves Flashcards

1
Q

What goes through the carotid canal?

A

Internal carotid artery

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2
Q

What goes through the foramen spinosum?

A

Middle meningeal artery

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3
Q

What is an outgrowth of the telencephalon?

A

CN I olfactory

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4
Q

Where does the olfactory mucosa go through?

A

Cribriform plate to synapse in olfactory bulb

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5
Q

Where do the olfactory tracts go to?

A

Prepiriform area of amygdala (primary olfactory cortex)

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6
Q

What is the only sensory system that is not relayed through thalamus?

A

CN I olfactory

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7
Q

What is an extension of the diencephalon?

A

CN II Optic

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8
Q

Where is the CN II optic from?

A

The retina through the optic canal, forms chiasm then optic tracts

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9
Q

What runs in the lateral wall of cavernous dural venous sinus?

A

CN III Oculomotor, CN IV Trochlear

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10
Q

Wha goes through the annular ring?

A

CN III Oculomotor and CN VI Abducent

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11
Q

Where is the CN III Oculomotor?

A

Midbrain through superior orbital fissure to orbit

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12
Q

What kind of motor control is there in the CN III Oculomotor?

A

Somatic and parasympatheitc

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13
Q

Somatic motor control is to?

A

Inferior oblique, superior rectus, inferior rectus and medial rectus, levator palpabrae

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14
Q

Parasympathetic control is to?

A

Sphincter papillae and ciliary muscle

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15
Q

What is the superior division of oculomotor?

A

Leavtor palpabrae and superior rectus

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16
Q

Where is the CN IV Trochlear?

A

Midbrain through superior orbital fissure to orbit

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17
Q

Is the CN IV Trochlear o the inside or outside of the annular ring?

A

Outside

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18
Q

What is the only cranial nerve which all fibres cross to the opposite side?

A

CN IV Trochlear

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19
Q

Where does the motor fibres of the CN IV Trochlear go to?

A

Superior Oblique

20
Q

Where does the CN V Trigeminal nerve originate from?

A

The pons, forms a ganglion and divides into 3 divisions

21
Q

What are the 3 divisions of the Trigeminal nerve?

A

Ophthalmic
Maxillary
Mandibular

22
Q

What kind of innervation does the CN V Trigeminal give?

A

Motor and Sensory

23
Q

What does the Lacrimal, Zygomatic, Lingual and Auriculotemporal allow?

A

Passage of parasympathetic fibres from other cranial nerves

24
Q

Where does the CN IV Abducent nerve originate from?

A

The pons and passes through the superior orbital fissure to reach the orbit

25
Q

What is the long extradural pathway?

A

CN VI Abducent

26
Q

Where does the CN IV Abducent pass through?

A

Cavernous dural venous sinus with internal carotid artery

27
Q

Where does the CN VII Facial nerve originate from?

A

The pons, through internal acoustic meatus into temporal bone

28
Q

What is involved in the CN VII Facial nerve?

A

Greater petrosal, stapedial and chorda tympani

29
Q

Where does the motor fibres of the CN VII leave?

A

Stylomastoid foramen

30
Q

Where does the vestibule apparatus and auditory apparatus go through?

A

Internal auditory meatus to pons/medulla oblongata

31
Q

Where does the CN IX Glossopharyngeal originate from?

A

The medulla oblongata and passes through jugular foramen

32
Q

Where does the parasympathetic control go to in the CN IX?

A

Parotid, buccal and labial glands

33
Q

Where do you get taste from?

A

Posterior 1/3rd tongue

34
Q

Where does the motor control go to in glossopharyngeal?

A

Pharyngeal plexus and stylopharyngeus

35
Q

Where does the CN X Vagus nerve originate from?

A

The medulla oblongata though the jugular foramen

36
Q

What are the distributions of the CN X Vagus nerve?

A

Cranial, cervical, thoracic and abdominal

37
Q

Where are the pressure receptors?

A

Aortic arch

38
Q

Where are the chemoreceptors?

A

In the para-aortic body

39
Q

Where does the CN XI Accessory nerve originate from?

A

The spinal cord, enter foramen magnum and join cranial root then pass through jugular foramen

40
Q

Where is the motor control in the CN XI Accessory nerve?

A

Trapezius and sternocleidomastoid

41
Q

What is considered part of the vagus nerve?

A

Cranial root

42
Q

Where does the CN XII Hypoglassal nerve originate from?

A

The medulla oblongata passes through hypoglassal canal

43
Q

What enters the root of the tongue above hyoid bone?

A

CN XII Hypoglassal

44
Q

Where does the ophthalmic branch of trigeminal enter?

A

Orbit through superior orbital fissure

45
Q

Where does the maxillary branch of trigeminal enter?

A

pterygopalatine fossa through foramen rotundum

46
Q

Where does the mandibular branch of trigeminal go through?

A

foramen oval to inferior surface of the base of the skull

Anatomy 2 (26 decks)

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