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