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ECOS IV Midterm > OCMM Intro > Flashcards

OCMM Intro Flashcards

1
Q

What are the 5 features of PRM?

A
  1. The inherent motility of the brain and SC
  2. Fluctuation of CSF
  3. Mobility of the intracranial and intraspinal membranes
  4. The articular mobility of the cranial bones
  5. The mobility of the sacrum b/w the ilia that is interdependent with the motion of the SBS
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2
Q

What exits the foramen cecum?

A

Vein to superior sagittal sinus

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3
Q

What exits the anterior ethmoidal foramen?

A

Anterior ehtmoidal A, V and N

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4
Q

What exits the foramina of the ciribiform plate?

A

Olfactory nerve bundles

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5
Q

What exits the posterior ethmoidal foramen?

A

Posterior ehtmoidal A, V and N

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6
Q

What exits the optic canal?

A

Optic N and opthalmic A

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7
Q

What exits the superior orbital fissure?

A

Oculomotor N, trochlear N, opthalmic N, abducens N, superior othalmic vein

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8
Q

What exits the foramen rotundum?

A

Maxillary N

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9
Q

What exits the foramen ovale?

A

Mandibular N, accessory meningeal A, lesser petrosal N

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10
Q

What exits the foramen spinosum?

A

Middle menigieal A and V, meningeal branch of mandibular N

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11
Q

What exits the foramen lacerum?

A

Interior carotid A and inferior carotid N plexus

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12
Q

What exits the inferior acoustic meatus?

A

Facial N (VII), vestibulocochlear N, labyrinthine A

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13
Q

What exits the jugular foramen?

A

Inferior petrosal sinus, glossopharyngeal N, vagus N, accessory N, sigmoid sinus, posterior meningeal A

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14
Q

What exits the hypoglossal canal?

A

Hypoglossal N (XII)

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15
Q

What exits the foramen magnum?

A

Medulla, meninges, vertebral A, spinal roots of accessory nerves

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16
Q

What is the SBS?

A

The basisphenoid and the basiocciput join by a synchondrosis

17
Q

What is a synchondrosis?

A

Relatively rigid hyaline cartilagenous junction similar to cartilage like the sterno-manubrial joint

18
Q

How do the midline bones move?

A

Move in flexion/extension; most rotate about a tranverse axis in a anterior/posterior direction

19
Q

In which direction do paired bones move?

A

In internal/external rotation; have variable axes and are always labeled external/internal rotation

20
Q

What bones make up the cranial vault?

A

Frontal, parietals, squamous temporals, squamous occiput, greater wing of sphenoid

21
Q

What are the facial bones?

A

Inferior nasal concha, lacrimal, maxilla, nasal, palatine, zygoma, frontal

22
Q

Which parts of the cranial vault rotate externally?

A

Frontals, parietals and temporals

23
Q

Which facial bones rotate externally?

A

Maxilla, palatines, zygomae

24
Q

In which direction does the sagittal articulation of the parietal bone move during flexion/external rotation?

A

Moves inferiorly

25
Q

In which direction does the temporal articulation of the parietal bone move during flexion/external rotation?

A

Moves laterally; cranium widens laterally

26
Q

In which direction does the sagittal articulation of the parietal bone move during extension/internal rotation?

A

Moves superiorly

27
Q

In which direction does the temporal articulation of the parietal bone move during extension/internal rotation?

A

Moves medially; cranium narrows laterally

28
Q

What direction does the frontal bone move during external rotation (during SBS flexion)?

A

Lateral portion moves anterior/lateral and slightly inferior, glabella moves posteriorly

29
Q

What direction does the frontal bone move in internal rotation (during SBS extension)?

A

Lateral side moves posterior/medual and slightly superior, glabella moves anteriorly

30
Q

What axis is present on the frontal bone?

A

Metopic has hing like action; horizontal plane motion through vertical axis; axis from center of orbital roof thru frontal eminence

31
Q

Describe flexion of the ethmoid

A

The perpendicular plate is rotated by the sphenoid about its transverse axis; this swings the crista galli superiorly and posteriorly

32
Q

Describe extension of the ethmoid

A

The perpendicular plate is rotated by the sphenoid about its transverse axis; this swings the cristal galli inferiorly and anteriorly

33
Q

What is the motion of the vomer?

A

Drives the palatines and maxillaries, follows sphenoid like the beak of a winged bird, depresses the hard palate with SBS flexion, flexion (wide flat palate), extensin (narrow tall palate)

34
Q

Which way does the posterior part of the vomer move?

A

Depresses the palatines, flattening the roof of the mouth

35
Q

Which way does the anterior part of the vomer move?

A

Descends to externally rotate the premaxillae

ECOS IV Midterm (6 decks)

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