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SP2017 Anatomy Exam#2 > Foramina of the Skull and Structures Transmitted > Flashcards

Foramina of the Skull and Structures Transmitted Flashcards

1
Q

Cribiform plate

A

CNI (olfactory) nerve fibers

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2
Q

Foramen cecum

A

Emissary vein from nasal cavity to superior sagittal sinus

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3
Q

Anterior ethmoidal foramen

A

anterior ethmoidal nerve, artery and vein

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4
Q

Posterior ethmoidal foramen

A

posterior ethmoidal nerve, artery, and vein

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5
Q

Sphenopalatine foramen

A

Sphenopalatine artery and vein
(posterior lateral nasal branches and posterior septal branches)
Nasopalatine nerve (from V2)
Posterior lateral nasal nerves (from V2)

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6
Q

Optic canal

A

CNII
Opthalmic artery
Symp. fibers from internal carotid plexus

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7
Q

Superior Orbital Fissure

A 
CN III (occulomotor
CN IV (trochlear)
CNV1 (Maxillary of Trigeminal)
CNVI (abducens)
Superior opthalmic vein
Larimal artery
Symp fibers from internal carotid plexus
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8
Q

Inferior Orbital fissure

A

Infraorbital nerve (from V2)
Infraorbital artery and vein
Zygomatic nerve (from V2)
—>Zygomaticotemporal nerve, artery and vein
—>Zygomaticofacial nerve, artery and vein

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9
Q

Supraorbital foramen or notch

A

Supraorbital artery, nerve and vein

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10
Q

Infraorbital foramen of notch

A

Infraorbital nerve, artery and vein

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11
Q

Zygomaticotemporal foramen

A

Zygomaticotemporal nerve (from V2) emerges from here onto temple

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12
Q

Zygomaticofacial foramen

A

Zygomaticofacial nerve (from V2) emerges from here onto the face

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13
Q

Alveolar canal

A

Posterior Superior Alveolar nerve (from V2)

Posterior Superior alveolar artery and vein

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14
Q

Foramen Rotundum

A

CNV2 (Maxillary)

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15
Q

Foramen Ovale

A

CNV3 (Mandibular)

Acessory meningeal artery

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16
Q

Internal Acoustic Meatus

A

CNVII (facial)
CNVIII (vestibulocochlear)
Labryinthine (internal auditory) artery

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17
Q

External Acoustic Meatus

A

Tympanic membrane (blocks entrance to middle ear cavity)

18
Q

Groove for pharyngotympanic (auditory) tube

A

Cartilaginous portion of auditory (eustachian) tube (post/med to foramen ovale)

19
Q

Stylomastoid foramen

A

CVII (facial nerve)

20
Q

Facial canal (opens into stylomastoid foramen)

A

CNVII (facial nerve)

21
Q

Petrotympanic fissure

A

chorda tympani nerve (from CNVII)

anterior tympanic artery and v.

22
Q

Hiatus for greater petrosal n.

A

Greater petrosal (from CNVII)

23
Q

Hiatus for lesser petrosal n.

A

Lesser petrosal n. (from CNIX)

24
Q

Jugular foramen

A

CNIX
CNX
CNXI
IJV

25
Q

Hypoglossal canal

26
Q

Carotid canal

A
  • ICA

- Sympathetic carotid plexus of nerves from internal carotid nerve

27
Q

Foramen lacerum

A
  • fibrocartilage

- ICA runs above it to enter cranial vault

28
Q

Pterygomaxillary fissure

A

terminal branches of maxillary a. and v.

29
Q

Pterygopalatine fossa

A

pterygopalatine ganglion
CNV2 (maxillary)
Branches of max. a. and v.

30
Q

Pterygoid canal

A
  • Nerve of pterygoid canal (vidian) formed by deep and greater petrosal
  • pterygoid branch of max a.
31
Q

Pharyngeal canal

A
  • pharyngeal n. (from CNV2)

- Pharyngeal brs. of maxillary a. and v.

32
Q

Palatine canal

A 
-Greater palatine (from V2)
Lesser palatine (from V2)
Descending palatine a. and v.
-->greater palatine a. and v.
-->lesser palatine a. and v.
33
Q

Greater palatine foramen

A

Greater palatine nerve, a. and v.

Lesser palatine a. and v.

34
Q

Lesser palatine foramen

A

lesser palatine nerve

35
Q

Incisive foramen

A

Nasopalatine nerve
Brs. of sphenopalatine a. and v.
Brs. of greater palatine a. and v. (anastomose w. sphenopalatine br.)

36
Q

Foramen spinosum

A

middle meningeal a.

meningeal branch of V3

37
Q

Foramen magnum

A

Spinal cord and meninges
Ascending rootlets of CNXI
Vertebral aa.
Ant and Post spinal aa.

38
Q

Condyloid canal

A

Emissary v, from superficial vv. of skull to sigmoid sinus

39
Q

Mandibular foramen

A

IAN (from V3), a. and v.

40
Q

Mental foramen

A

Mental nerve from V3

SP2017 Anatomy Exam#2 (14 decks)

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