Bones: Skull connections and special cavities Flashcards Preview

Y Anatomy I > Bones: Skull connections and special cavities > Flashcards

Flashcards in Bones: Skull connections and special cavities Deck (56)
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1

Foramen rotundum connects what to what?

Middle cranial fossa to pterrygopalatine fossa

2

Cribriform plate connects what to what?

Anterior cranial fossa to the nasal cavity

3

Anterior ethmoidal foramen connects what to what?

Connects the anterior cranial fossa to the ethmoidal air cells and orbit

4

Foramen ovale connects what to what?

Connects the middle cranial fossa to infratemporal fossa

5

Foramen spinosum connects what to what?

Middle cranial cavity to infratemporal fossa

6

Carotid canal connects what to what?

The middle cranial fossa to the external base of skull

7

Foramen lacerum connects what to what?

Middle cranial fossa to the external skull base

8

Sphenopetrosal fissure connects what to what?

Middle cranial fossa to the external skull base

9

Hiatus/canal for the greater petrosal nerve connects what to what?

Middle cranial fossa to facial canal 

- g.p. nerve arises from facial nerve at geniculate ganglion 

10

The canal and hiatus for the lesser petrosal nerve connect what to what?

Tympanic cavity to middle cranial fossa

- l. p. nerve then courses forward and exits via foramen ovale to infratemporal fossa

11

Foramen magnum connects what to what?

The posterior cranial fossa to the Vertebral canal and spinal cord

12

Internal acoustic meatus connects what to what?

posterior cranial fossa to the facial canal

13

Jugular foramen connects what to what?

Posterior cranial fossa to the external skull base

14

Hypoglossal canal connects what to what?

Posterior cranial fossa to the external surface

15

The optic canal connects what to what?

orbital cavity to the middle cranial fossa

16

The superior orbital fissure connects what to what?

The orbit to the middle cranial fossa

17

The inferior orbital fissure connects what to what?

The orbit to the pterygopalatine fossa

18

The posterior ethmoidal foramen connects what to what?

anterior cranial fossa to the posterior ethmoidal air cells to orbit

19

The nasolacrimal canal connects what to what?

Orbit to the inferior nasal meatus

20

infraorbital canal connects what to what?

orbit to the canine fossa

- starts in the orbit at the infraorbital groove and transcends the maxilla, ending on the anterior surface of maxilla at the infraorbital foramen

21

The supraorbital foramen connects what to what?

the orbit to the frontal region

22

Frontal notch connects what to what?

Orbit to the frontal region

23

Zygomaticotemporal foramen connects what to what?

The orbit (via the zygomatico-orbit foramen) to the temporal surface of the zygomatic bone

24

Zygomaticofacial foramen connects what to what?

The orbit (via the zygomatico-orbit foramen) to the lateral surface of the face

25

Sphenopalatine foramen connects what to what?

pterygopalatine fossa to the nasal cavity (COMMON nasal meatus)

26

Incisive foramen connects what to what?

The nasal cavity to the oral cavity

27

The lesser and greater palatine foramen connects what to what?

The pterygopalatine fossa to the posterior oral cavity

28

The sphenoid/greater wing has how many surfaces/facets? What are their names?

5 Facets or Surfaces

  1. Cerebral
  2. Infratemporal
  3. Temporal
  4. Orbital
  5. Pterygomaxillar or Anterior

29

External acoustic meatus connects what to what?

tympanic region of the temporal bone to the tympanic membrane

30

Cochlear canaliculus

external skull base to the inner ear

- tiny, practically invisible opening medial to carotid canal and anterior to jugular fossa