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Neuroscience > Nurocranium 1-2 > Flashcards

Nurocranium 1-2 Flashcards

1
Q

Cranial bones

A 
Neurocranium
• Frontal bone(1)
• Parietal bones(2)
• Occipital bone(1)
• Tenporal bones(2)
• Ethmoid bone(1)
• Sphenoid bone(1)
  Visserocranium
• Maxilla(2)
• Mandible (1)
• Vomer (1)
• Palatin bones(2)
• Lacrimal bones (2)
• Nasal bones(2)
• Inferior nasal conchae(2)
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2
Q

FRONTAL BONE

(OS FRONTALE) forms

A

 the majority of forehead
 roof of the orbit
 floor of the ant. cranial fossa

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3
Q

Parts of frontal bone

A
  1. Squamous part
  2. Orbital part
  3. Nasal part
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4
Q

OS FRONTALE articulates with

A 
Parietal
Zygomatic
Greater wing of sphenoid bone
Maxilla
Ethmoid
Lacrimal
Nasal
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5
Q 
Suture that connects 
frontal bones
Frontal bones and parietal bones
Parietal bones
Occipital bone and parietal bones
A

Metopic suture
Coronal suture
Saggital suture
Lamboidal suture

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6
Q

Ant fontanelle and post fontanelle

A

Between the parietal and frontal bones

Between the parietal and occipital bones

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7
Q

Physiologic closure time of the metopic suture is

A

over 6 years

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8
Q

External surface of Squamous part

A

•Frontal eminence (tuber)
•Superciliary arch
•Glabella
•Supraorbital margin
Supraorbital notch/foramen Frontal notch/foramen
•Zygomatic process/ temporal line & surface/ parietal margin

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9
Q

Internal surface of Squamous part

A
  • Groove for superior sagittal sinus
  • Frontal crest
  • Foramen caecum
  • cerebral ridges/ impressions of gyri
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10
Q

Orbital part Forms

A

the roof of the orbit

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11
Q

Parts of Orbital part

A 
• Orbital surface
-Fossa for lacrimal gland (lacrimal fossa)
-Trochlear spine and fovea
• Ethmoidal notch
• Sphenoidal margin
• Opening of frontal sinus
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12
Q

Nasal part Articulates with

A

nasal bones and

frontal process of the maxilla

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13
Q

Nasal part forms

A

root of the nose

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14
Q

Parts of Nasal part

A

Nasal spine
Nasion
Nasal margin

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15
Q

When ant fontanelle closes it forms

When post fontanelle closes it forms

A

Bregma

Lambda

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16
Q

Ethmoidal bone

A

The main bone forming the bony skeleton of the nasal cavity

17
Q

Ethmoidal bone Parts:

A 
• Cribriform plate
• Crista galli
• Perpendicular plate
• Ethmoidal labyrinth
➢ Anterior cells of ethmoid bone
➢ Middle cells of ethmoid bone
➢ Posterior cells of ethmoid bone
• Orbital plate
• Superior nasal concha
• Middle nasal concha
• Ethmoidal bulla
• Uncinate process
• Semilunar hiatus
18
Q

Sphenoid bone Parts:

A

1) Body
2) Greater wing
3) Lesser wing
4) Pterygoid process

19
Q

Body of sphenoid

A
  • Jugum sphenoidale
  • Sella turcica
  • Sulcus caroticus (Carotid sulcus)
  • Sulcus prechiasmaticus (Chiasmatic sulcus)
  • Carotid sulcus
20
Q

Posterior surface of sphenoid body is connected to

Inferior…………

A

connected to the basilary part of the occipital bone

connected to vomer

21
Q

Anterior surface of sphenoid body is facing to

A

the nasal cavity (aperture of sphenoidal sinus)

22
Q

Superior surface of ethmoid body has

A

sella turcica

23
Q

Lateral surfaces is the origin of

A

greater wings and the position of carotic grooves

24
Q

Sella turcica:

A 
 Tuberculum sellae
- middle clinoid process
 Hypophyseal fossa
 Dorsum sellae
- posterior clinoid process
25
Q

Lesser wing

A
  • Posterior clinoid process
  • Sphenoidal rostrum
  • Sphenoidal crest
  • Sinus of sphenoidal
  • Optic canal
  • Superior orbital fissure
26
Q

Superior orbital fissure definition and parts

A

Fissure between lesser wing and greater wing

▪ Oculomotor n.
▪ Trochlar n.
▪ Abducens n.
▪ Opthalmic n.
▪ Superior apthalmic v.
27
Q

Holes on greater wing

A

➢ Foramen rotundum ( maxillary n.V2)
➢ Foramen ovale ( Mandibular n.V3)
➢ Foramen spinosum ( middle meningeal a. and meningeal branches of mandibular n.)

28
Q

Surfaces of greater wing

A 
➢ Cerebral surface
➢ Temporal surface
➢ Infratemporal surface
➢ Maxillary surface
➢ Orbital surface (anteriorly)
29
Q

Margins of greater wings

A

➢ Zygomatic margin
➢ Frontal margin
➢ Parietal margin
➢ Squamosal margin

30
Q

Crest and spine in sphenoid

A
  • Infratemporal crest

* Spine of sphenoid

31
Q

Pterygoid process

A

➢ Lateral pterygoid plate

➢ Medial pterygoid plate

32
Q

Medial pterygoid plate

A 
▪ Pterygoid notch
▪ Pterygoid fossa
▪ Scaphoid fossa
▪ Pterygoid hamulus
▪ Pterygoid canal
33
Q

Post margin of sphenoid is ….

Ant margin of sphenoid articulate wiyh

A

Free

Frontal and ethmoid bone

Neuroscience (23 decks)

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