bone marking (skull)
external occipital crest
It is a ridge along the midline, beginning at theexternal occipital protuberance and descending to the foramen magnum
external occipital protuberance
The inion is the most prominent projection of the protuberance which is located at the posterior (lower rear) part of the human skull.
jugular foramen
located behind the carotid canal and is formed in front by the petrous portion of the temporal bone, and behind by the occipital bone; it is generally larger on the right than on the left side
formen spinosum
located in the posteromedial part of greater wing of sphenoid bone posterolateral to foramen ovale
middle nasal concha
medial surface of the labyrinth of ethmoid consists of a thin lamella, which descends from the under surface of the cribriform plate
crista gali
median ridge of bone that projects from the cribriform plate of the ethmoid bone
infraorbital foramen
opening in the maxillary bone of the skull located below the infraorbital margin of the orbit
manibular foremen
opening on the internal surface of the ramus of the mandible
zygomatic process
projection of the temporal bone that forms part of the zygoma.
styloid process
projects down and forward from the inferior surface of the temporal bone
pterion
region where the frontal, parietal, temporal, and sphenoid join together. It is located on the side of the skull, just behind the temple.
formen rotundum
runs downwards and laterally in an oblique path and joins the middle cranial fossa with the pterygopalatine fossa
cribriform plate
sieve-like structure between the anterior cranial fossa and the nasal cavity. It is a part of ethmoid bone
formen ovale
situated in the posterior part of the sphenoid bone, posterolateral to the foramen rotundum.
supraorbital foramen
small groove at superior and medial margin of the orbit in the frontal bone
superior nasal concha
superior meatus of the nose; back part of the medial surface of the labyrinth of ethmoid
formen magnum
the hole in the base of the skull through which the spinal cord passes
Alveolar process
thickened ridge of bone that contains the tooth sockets
formen lacerum
triangular hole in the base of the skull located between the sphenoid, apex of petrous temporal and basilar part of occipital.
external acoustic meatus
tube running from the outer ear to the middle ear, The adult human ear canal
mental formen
two openings located on the anterior surface of the mandible
mastoid process
conical prominence of the temporal bone behind the ear
ooccipital condyle
each of two rounded knobs on the occipital bone that form a joint with the first cervical vertebra.
perpendicular plate
ethmoid bone (vertical plate) is a thin, flattened lamina, polygonal in form, which descends from the under surface of the cribriform plate
inferior nuchal line
external surface of the occipital bone: The lower line, often faintly marked, is named also known as the lowest nuchal line
superior nuchal line
external surface of the occipital bone: The upper line, often faintly marked, is named also known as the highest nuchal line
sella turcica
a depression in the sphenoid bone, containing the pituitary gland
hard palate
bony front part of the palate
supercillary arch
bony ridge located above the eye sockets
