Bones and Features of the Skull

Bones and Features of the Skull

See Fundamentals of Anatomy and Physiology , Martini, 9th Ed, pp. 200-216 and The Anatomy Coloring Book, Kapit and Elson 3rd, pp. 24-26.

Illustrate two views of the skull:

  1. The floor of the cranium. (Martini’s 9th, p. 203). (Note the eight bones which form the floor: frontal, ethmoid, sphenoid, two temporals, two parietals and the occipital)
  2. The right-front side (3/4 view)

Label all bones with their listed features. Use the illustrations in Martini to aid in locating the bones and their features.

Here is an index page to many skull bone pictures not included on this page.
Here are overall views of the skull:


Front view

skull_front_PB012149

Skull Front labeled


Floor of Cranium

cranial_floor_PB012150up

Cranial Floor Labeled


Floor of cranium close up

cranial_floor_close_PB012151adj
Floor of cranium close up

Base of Skull

skull_from_belowPB012152up


Orbits and Nasal Cavity

orbits_nasal_cav_PA230100


Side View of Skull

skull_R_PA230105


Skull Right Quarter View

skull_quarter_view_PA230104

Skull Quarter View Labeled


Labeled Inferior View

Skull_inferior_lbd


Disarticulated Bones of the Skull

Craniel Bones


frontal_front_PA281025

Frontal (Contributes to orbit)

supraorbital foramen
glabella
supraorbital (superciliary) ridge
Sutures in the calvarium
coronal
sagittal


sphenoid_top_PA281039
SPHENOID (Contributes to orbit)

greater wings
lesser wings
optic foramina
superior orbital fissure (CN III, IV, V 1, VI)


ethmoid_PA281050

ETHMOID (Contributes to orbit) middle nasal concha

Here are alternative views of the ethmoid:
inferior view
superior view
Here is a (spooky) view up the nose showing the perpendicular plate, the cribriform plate and the middle nasal concha.


FACIAL BONES:

temporal_R_lateral_PA281027
TEMPORAL

squamous portion:
zygomatic process


zygomatic_PA281034
ZYGOMATIC (Contributes to orbit)


orbit_close_PA281067

Lacrimal (Contributes to orbit)


palatine_PA281052
Palatine (Contributes to orbit)

orbital surface


maxilla_R_lateral_PA281037
Maxilla (Contributes to orbit)

frontal process (to frontal bone)
zygomatic process
infraorbital foramen
alveolar margin
maxillary sinus
anterior nasal spine


mandible_lateral_PA281031

MANDIBLE

mandibular angle
mandibular notch
coronoid process
mandibular condyle
alveolar margin
mandibular foramen
mental foramen


vomer_PA281054
Vomer

 


inferior_conchae_PA281059
Inferior Nasal Conchae

Also known as the turbinate
This view is into the nasal cavity, the two lateral curved bones are the inferior nasal conchae.


nasal_PA281056
Nasal


Disarticulated Bones of the Cranial Floor

frontal_insidePA281026
Frontal


parietal_inside_PA281044

Parietal

venous sinuses


temporal_L_medial_PA281048

Temporal

squamous portion
petrous portion
internal acoustic meatus (CN VIII)
carotid canal
Jugular foramen (CN IX, X, XI)
(between temporal & occipital)


ethmoid_PA281049
Ethmoid

crista galli (attaches to dura mater)
cribriform plate (CN I)


sphenoid_top_PA281043
Sphenoid

sella turcica
greater wings
lesser wings
optic foramina (CN II)
foramen rotundum (anterior, CN V 2 )
foramen ovale (lateral, CN V3 )


occipital_PA281029
Occipital

foramen magnum
basioccipital
hypoglossal canal (CN XII)

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