RHS Anatomical structures

Cortical bone

Highly Radiopaque

Resists passage of x-ray beam

Inferior border of MN

Cancellous bone

Radiopaque (trabecule)

Radiolucent (bone marrow)

Soft, spongy

Coronoid process of mandible

Radiopaque

MX posterior image

Triangle

Marked prominence or projection of bone

External oblique ridge

Radiopaque

MN posterior image

Line

Linear prominence or projection of bone

Nasal spine

Radiopaque

MX anterior image

Sharp, thorn like projection

Mental tubercules

Radiopaque

MN anterior image

Small bump or nodule of bone

Maxillary tuberosity

Slightly Radiopaque

MX posterior image

Rounded prominence of bone

Mandibular canal

Radiopaque (outside) Radiolucent (inside)

MN posterior image

A tubelike passageway through bone that contains nerves and blood vessels

Mental foramen

Radiolucent

MN premolar/ molar image

An opening or hole

Submandibular fossa

Radiopaque

MN posterior image, below Mandibular canal

A broad, shallow, scooped-out or depressed area of bone

Maxillary sinus

Radiopaque (outside lines) Radiolucent (space)

MX posterior image

A hollow space, cavity or recess in bone

Nasal Septum

Radiopaque

MX anterior image

Bony wall or partition that divides two spaces or cavity

Median palatine suture

Radiolucent

MX anterior image (inside of the incisive foramen)

Immovable joint that represents a line of union between adjoining bones of the skull