WHERE AM I?
HOME » HUMAN ANATOMY » REGIONAL ANATOMY » HEAD AND NECK » SKULL AS A WHOLE » FLOOR OF CRANIAL CAVITY » FLOOR OF CRANIAL CAVITY - ANATOMICAL FEATURES

FLOOR OF CRANIAL CAVITY - ANATOMICAL FEATURES

• anterior cranial fossa
  

• frontal bone
  

• frontal sinus
  

• frontal crest
  

• attachment for falx cerebri

• groove for superior sagittal sinus
• orbital plate
• grooves for anterior meningeal vessels
• depressions for brain convolutions
• grooves for middle meningeal vessels
  

• frontoethmoidal suture
• foramen cecum
  

• ethmoid bone, cribriform plate of

• crista galli
  

• attachment for falx cerebri
  

• olfactory grooves
• foramina for olfactory nerves to upper part of nasal septum
• foramina for olfactory nerves to roof of nasal cavity
• foramina for olfactory nerves to superior nasal concha
• slit for nasociliary nerve
• groove for nasociliary nerve
• anterior ethmoidal foramen
• posterior ethmoidal foramen

• sphenoethmoidal suture
• sphenofrontal suture
  

• sphenoid bone

• body, anterior part = jugum sphenoidale
  

• ethmoidal spine
• groove for olfactory lobe
• chiasmatic groove, anterior margin
• optic foramen, upper margin
  

• lesser wing

• posterior border

• middle cranial fossa
  

• middle part

• sphenoid bone

• body
• lesser wing
  

• body of sphenoid bone

• chiasmatic groove, anterior margin
• optic foramen
• anterior clinoid process
• attachment for tentorium cerebelli
• sella turcica
• carotid groove
• notch for abducent nerve
• foramen lacerum
  

• sella turcica

• tuberculum sellae
• middle clinoid process
• hypophyseal fossa
• dorsum sellae
• posterior clinoid process
• attachment for tentorium cerebelli
  

• carotid groove

• ±carotico-clinoid foramen
• lingula
  

• lesser wing of sphenoid bone

• posterior margin

• lateral part

• superior orbital fissure

• sphenoid bone

• great wing

• great wing of sphenoid bone

• foramen rotundum
• scaphoid fossa
• ±foramen Vesalii
• foramen ovale
• foramen spinosum
• groove for anterior branch of middle meningeal vessels
  

• foramen lacerum
• sphenopetrosal suture
• sphenosquamosal suture
  

• temporal bone

• petrous part
• squamous part
  

• anterior surface of petrous part of temporal bone

• depression for semilunar ganglion
• orifice for carotid canal
• groove for greater superficial petrosal nerve and petrosal branch of middle meningeal artery
• hiatus of facial canal
• groove for lesser superficial petrosal nerve
• arcuate eminence
• tegmen tympani
  

• superior angle of petrous part of temporal bone

• squamous part of temporal bone

• depressions for brain convolutions
• groove for posterior branches of middle meningeal vessels

• sphenoparietal suture

• pterion

• squamosal suture

• parietal bone

• sphenoidal angle

• posterior cranial fossa
  

• sphenoid bone

• body

• dorsum sellae
• clivus
  

• occipital bone

• basilar part
• foramen magnum
  

• lateral part

• tubercle for alar ligament
• hypoglossal canal = anterior condyloid foramen
  

• jugular process of lateral part of occipital bone

• groove for transverse sinus
• ±condyloid canal = posterior condyloid foramen
  

• squamous parts

• internal occipital crest
• attachment for falx cerebelli
• groove for occipital sinus
• inferior occipital fossa
• groove for transverse sinus
  

• petro-occipital fissure

• groove for inferior petrosal sinus

• jugular foramen
• occipitomastoid suture
  

• temporal  bone

• petrous part

• apex
• superior angle
• posterior surface
  

• superior angle of petrous part of temporal bone

• notch for trigeminal nerve = depression for semilunar ganglion
• groove for superior petrosal sinus
• attachment for tentorium cerebelli
  

• posterior surface of petrous part of temporal bone

• internal acoustic meatus
• depression for subarcuate fossa
• slit for vestibular aqueduct
  

• mastoid part

• groove for transverse sinus
• ±mastoid foramen
  

• parietomastoid suture

• parietal bone

• mastoid angle

• groove for transverse sinus