2.1 Anatomy of the Skull and Cranial Nerves Flashcards

1
Q

CRANIAL NERVE COMPARTMENTS
sensory motor or mixed/both

rhyme?

A

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

  1. Olfactory - SENSORY
  2. Optic - SENSORY
  3. Oculomotor - MOTOR
  4. Trochlear - MOTOR
  5. Trigeminal - BOTH (mixed)
  6. Abducent - MOTOR
  7. Facial - BOTH (mixed)
  8. Vestibulocochlear - SENSORY
  9. Glossopharyngeal - BOTH (mixed)
  10. Vagus - BOTH (mixed)
  11. Accessory - MOTOR
  12. Hypoglossal – MOTOR
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2
Q

CRANIAL BASE is the FLOOR of the NEUROCRANIUM which SUPPORTS the BRAIN and is DIVIDED into CRANIAL FOSSAS

what STRUCTURE is in the ANTERIOR CRANIAL FOSSA

A

CRIBRIFORM PLATE

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3
Q

what FORAMEN are in the MIDDLE CRANIAL FOSSA

A

FORAMEN ROTUNDUM
FORAMEN OVALE
FORAMEN SPINOSUM (small)
FORAMEN LACERUM (lacerated, torn like shape)

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4
Q

which other STRUCTURES are found in the MIDDLE CRANIAL FOSSA

A

OPTIC CANAL
SUPERIOR ORBITAL FISSURE
CAROTID CANAL

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5
Q

which FORAMEN are found in the POSTERIOR CRANIAL FOSSA

A

FORAMEN MAGNUM
JUGULAR FORAMEN

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6
Q

which other STRUCTURES are found in the POSTERIOR CRANIAL FOSSA

A

INTERNAL ACOUSTIC MEATUS
HYPOGLOSSAL CANAL

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7
Q

CRIBRIFORM PLATE is found where

A

ANTERIOR CRANIAL FOSSA

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8
Q

CRIBRIFORM PLATE is part of which BONE

A

ETHMOID BONE

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9
Q

ROLE of CRIBRIFORM PLATE

A

SUPPORTS OLFACTORY BULB and allows OLFACTORY NERVES (I) to PICK UP sense of SMELL in the OLFACTORY REGION of the NASAL CAVITY

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10
Q

OPTIC CANAL is found where

A

MIDDLE CRANIAL FOSSA

MEDIAL to the SUPERIOR ORBITAL FISSURE

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11
Q

OPTIC CANAL ROLE

A

OPTIC NERVE (II) travels POSTERIOR from EYEBALL through the optic canal before the Optic Chiasma

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12
Q

OPTIC CANAL is where in relation to the SUPERIOR ORBITAL FISSURE

A

MEDIAL

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13
Q

where is the SUPERIOR ORBITAL FISSURE found

A

MIDDLE CRANIAL FOSSA - ANTERIORLY

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14
Q

which NERVES PASS THROUGH the SUPERIOR ORBITAL FISSURE (Middle Cranial Fossa)

A
  • OCULOMOTOR (III)
  • TROCHLEAR (IV)
  • ABDUCENS (VI)
  • OPTHALMIC BRANCH of TRIGEMINAL (V)
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15
Q

where is the FORAMEN ROTUNDUM found

A

MIDDLE CRANIAL FOSSA

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16
Q

which NERVE PASSES THROUGH the FORAMEN ROTUNDUM (middle cranial fossa)

A

MAXILLARY BRANCH of the TRIGEMINAL NERVE (V)

17
Q

FORAMEN OVALE of skull is found where

A

MIDDLE CRANIAL FOSSA

18
Q

which NERVE passes through the FORAMEN OVALE (middle cranial fossa)

A

MANDIBULAR BRANCH of the TRIGEMINAL NERVE (V)

19
Q

INTERNAL ACOUSTIC MEATUS is found where

A

POSTERIOR CRANIAL FOSSA - ANTERIORLY

20
Q

which NERVES PASS THROUGH the INTERNAL ACOUSTIC MEATUS

A

FACIAL NERVE (VII)

VESTIBULOCOCHLEAR NERVE (VIII)

21
Q

JUGULAR FORAMEN is found where

A

POSTERIOR CRANIAL FOSSA

22
Q

which NERVES PASS THROUGH the JUGULAR FORAMEN (posterior cranial fossa)

A

GLOSSOPHARYNGEAL (IX)
VAGUS (X)
ACCESSORY (XI)

23
Q

HYPOGLOSSAL CANAL found where and what passes through

A

POSTERIOR CRANIAL FOSSA

  • HYPOGLOSSAL NERVE ROOTLETS pass through
24
Q

FORAMEN MAGNUM found where

A

POSTERIOR CRANIAL FOSSA

25
what PASS THROUGH the FORAMEN MAGNUM
MEDULLA OBLONGATA SPINAL PORTION of ACCESSORY NERVE
26
OPTHALMIC BRANCH of TRIGEMINAL NERVE passes through which foramen and fossa
SUPERIOR ORBITAL FISSURE of the MIDDLE CRANIAL FOSSA
27
MAXILLARY BRANCH of TRIGEMINAL NERVE passes through which foramen and fossa
FORAMEN ROTUNDUM of the MIDDLE CRANIAL FOSSA
28
MANDIBULAR BRANCH of TRIGEMINAL NERVE passes through which foramen and fossa
FORAMEN OVALE of the MIDDLE CRANIAL FOSSA
29
GLOSSOPHARYNGEAL, VAGUS & ACCESSORY NERVES (9,10,11) pass through the...
JUGULAR FORAMEN of the POSTERIOR CRANIAL FOSSA (but spinal portion of the accessory nerve passes through foramen magnum)
30
MEDULLA OBLONGATA passes through the...
FORAMEN MAGNUM of the POSTERIOR CRANIAL FOSSA
31
VESTIBULOCOCHLEAR NERVE (8) passes through the..
INTERNAL ACOUSTIC MEATUS of the POSTERIOR CRANIAL FOSSA
32
OCCULOMOTOR, TROCHLEAR, ABDUCENS and OPTHALMIC BRANCH of TRIGEMINAL (4,5,6) pass through the...
SUPERIOR ORBITAL FISSURE of the MIDDLE CRANIAL FOSSA
33
FACIAL NERVE (7) passes through the..
INTERNAL ACOUSTIC MEATUS of the POSTERIOR CRANIAL FOSSA
34
OLFACTORY NERVES (1) pierce through what..
CRIBRIFORM PLATE of the ANTERIOR CRANIAL FOSSA