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16 Cards in this Set

  • Front
  • Back

Anterior Fontanelle in newborns

o Bulging – indicates increasedintracranial pressure


o Depressed – indicatesdehydraton


o Access for drawing CSF

Posterior Fontanelle in newborns

reference point for fetalhead during childbirth

reference point for fetalhead during childbirth

Anterolateral fontanelle

sphenoid fontanelle

Posterolateral

mastoid fontanelle

Adult skull and sutures

• Sutures: 
o Coronal: parietal + frontal bones 
o Squamous: parietal + temporalbones 
o Sagittal: R. + L. parietal 
o Lambdoid: parietal + occipitalbone 
      • Bregma: sagittal and coronalsutures 
      • Lambda: sagittal and lamboid sutu...

• Sutures:


o Coronal: parietal + frontal bones


o Squamous: parietal + temporalbones


o Sagittal: R. + L. parietal


o Lambdoid: parietal + occipitalbone


• Bregma: sagittal and coronalsutures


• Lambda: sagittal and lamboid sutures


• Pterion: frontal, parietal,temporal and sphenoid


• Asterion: temporal, parietal andoccipital

frontal bone

• Glabella: above arch of nose
• Superciliary Arches: arches above obit (2) 
• Frontal Eminence: above the arches (2) 
• Supraorbital Foramen: supraorbital VAN
• ANTERIOR CRANIAL FOSSA 
• Foramen Cecum

• Glabella: above arch of nose


• Superciliary Arches: arches above obit (2)


• Frontal Eminence: above the arches (2)


• Supraorbital Foramen: supraorbital VAN


• ANTERIOR CRANIAL FOSSA


• Foramen Cecum

occipital bone

• External Occipital Protuberance (Inion) 
• Internal Occipital Protuberance 
• Superior and Inferior Nuchal Lines 
• Posterior Cranial Fossa 
• Occipital Condyles 
• Foramen magnum 
• Grooves for Dural Venous Sinus 
• Hypoglossal ...

• External Occipital Protuberance (Inion)


• Internal Occipital Protuberance


• Superior and Inferior Nuchal Lines


• Posterior Cranial Fossa


• Occipital Condyles


• Foramen magnum


• Grooves for Dural Venous Sinus


• Hypoglossal Canal: CN XII


• Condylar Canal: occipital emissary v.


• Jugular Foramen: shared with temporal

temporal bone

• Styloid Process 
• Mastoid Process 
• Glenoid Fossa 
• Digastric groove 
• External Acoustic Meatus 
• Stylomastoid Foramen: Facial N.,Stylomastoid A. 
• Petrotympanic Fissure: chordatympani n., anterior tympanic br.of maxillary a.

• Styloid Process


• Mastoid Process


• Glenoid Fossa


• Digastric groove


• External Acoustic Meatus


• Stylomastoid Foramen: Facial N.,Stylomastoid A.


• Petrotympanic Fissure: chordatympani n., anterior tympanic br.of maxillary a.

temporal bone cont

• Mastoid Canaliculus: auricular n. (X)


• Tympanic Canaliculus: tympanic n. (IX)


• Jugular Foramen: CN IX, X, XI, inferiorpetrosal sinus


o Shared with occipital bone


• Carotid Canal: Internal Carotid A., InternalCarotid Plexus


• Foramen Lacerum: covered by cartilage


o Shared with sphenoid bone


• Internal Acoustic Meatus: CN VII, VIII,labyrinthine a.


• Hiatus for Lesser + Greater Petrosal N.

sphenoid bone

• Central Body: sella turcica


• Greater Wings: infratemporalcrest


• Lesser Wings: forms part offloor of anterior cranial fossa


• Pterygoid Processes:


o Medial + lateral plate


o Hamulus (medial plate)


o Pterygoid Fossa


o Scaphoid Fossa

sphenoid bone and foramen

• Contains 5 important openings:


(1) Optic Canal: CN II


(2) Superior Orbital Fissure: CN III, V1, IV, superior + inferioropthalamic v.


(3) Foramen Rotundum: CN V2


(4) Foramen Ovale: CN V3 , Accessory meningeal a., lesserpetrosal n.


(5) Foramen Spinosum: middle meningeal a., recurrentmeningeal n.

ethmoid bone

• Choana: posterior region of nasalseptum 
• Cribiform plate 
• Crista Galli 
• Superior and middle concha 
• Ethmoidal Foramina

• Choana: posterior region of nasalseptum


• Cribiform plate


• Crista Galli


• Superior and middle concha


• Ethmoidal Foramina

Mandible

• Structure:


o Coronoid Process, Condyle, Mand. Notch


o Rami, Body, Angle


o Alevolar Process


o Mental Protuberance


o Lingula


o Superior/Inferior Genial Tubercles


o Mylohyoid line + groove




• Mandibular Foramen: InferiorAlveolar VAN


• Mental Foramen: Mental VAN

Maxilla

• Inferior Orbital Fissure: infraorbital VAN,zygomatic n., inferior opthalamic c. 
• Infraorbital Foramen: infraorbital VAN 
• Incisive Foramen: nasopalatine n. andsphenopalatine a. 
• Greater Palatine Canal: descendingpalatine VAN 
     o...

• Inferior Orbital Fissure: infraorbital VAN,zygomatic n., inferior opthalamic c.


• Infraorbital Foramen: infraorbital VAN


• Incisive Foramen: nasopalatine n. andsphenopalatine a.


• Greater Palatine Canal: descendingpalatine VAN


o Formed with palatine bone


• Inferior and Middle Alveolar Canals


• Max Sinus


• Note: Hard palate = maxilla + palatinebones

Zygomatic, Nasal, Vomer,Lacrimal, Inferior Nasal Concha

• Zygomatic Bones 
• Nasal Bones (Paired): 
     o Nasion: where nasal bones meet facial 
• Lacrimal Bones: 
     o Lacrimal Fossa: contains lacrimal sac 
• Vomer: 
     o Nasal Septum = perpendicular plate +vomer + ethmoid cartilage 
• ...

• Zygomatic Bones


• Nasal Bones (Paired):


o Nasion: where nasal bones meet facial


• Lacrimal Bones:


o Lacrimal Fossa: contains lacrimal sac


• Vomer:


o Nasal Septum = perpendicular plate +vomer + ethmoid cartilage


• Inferior Nasal Concha (Paired):


o Largest of the 3 concha

Orbit and Nasal Cavity

• Bones of Orbit:


o Roof: lesser wing of sphenoid, frontal bone


o Lateral: zygomatic, frontal, greater wing ofsphenoid


o Medial: sphenoid body, ethmoid, lacrimal,maxilla


o Floor: palatine, maxilla, zygomatic bone




• Bones of Nasal Cavity:


o Frontal, nasal, lacrimal, ethmoid, inferiornasal concha, sphenoid, palatine, maxilla