Head & Neck Anatomy: Facial & Cervical Bones Flashcards
Only freely moveable bone of the skull, articulates at the TMJ
Mandible
__ of the mandible is the horizontal part, and the ___ is the vertical part
Body; ramus
Opening for the mental nerves and blood vessels; located near mandibular premolars
Mental Foramen
*dont confuse this radiolucency with a periapical lesion
Passage for the inferior alveolar nerve and artery; located on the internal surface of the ramus
Mandibular Foramen
Small round projection at the midline, on the inner side of the mandible. Serves as a muscle attachment
Genial tubercles
Depression on the anterior border of the ramus. Landmark for the infra alveolar (IA) block
Coronoid notch
Depression between the coronoid and condyle process. Aka sigmoid notch
Mandibular notch
Projection on the outer surface of the mandible, where the ramus joins the body of the mandible
External oblique ridge
Projection on the inner side of the mandible. Attaches the mylohyoid muscles (floor of the mouth). Aka mylohyoid line
Internal oblique ridge
Convex protrusion on the posterior side of the ramus that articulates with the TMJ
Condylar process
Thin triangular eminence on the anterior side of the ramus
Coronoid process
The maxilla forms the area of the
Upper jaw
Maxillary is paired bones fused at the ____ suture
Intermaxillary suture
Located 2cm inferior to the midpoint of the lower margin of the orbit. Landmark for the infraorbital nerve block
Infraorbital Foramen
Posterior to the maxillary central incisors, carries nasopalatine nerves and blood vessels. Landmark for the nasopalatine nerve block
Incisive Foramen
Bony protrusion on the lateral walls of the nasal cavity. The structures increase surface area for mucous membrane and olfactory nerve endings.
Inferior nasal conchae
Form the cheekbones, walls and floors of the orbits. Divided into frontal, temporal and maxillary process of this bone
Zygomatic bones
Thin and fragile plate of bone forming the anterior medial wall of the orbit; positioned laterally to the nasal bones
Lacrimal bones
Are at the junction of the lacrimal bone and the maxilla; tears drain through this duct into the inferior nasal meatus
Nasolacrimal ducts
Paired L-shaped bones that consists of horizontal and vertical plates; horizontal plates form the posterior part of hard palate; vertical plates form the lateral walls of the nasal cavity and the orbit
Palatine bones
What foramen is near the last molar; transmits greater palatine nerve and vessels
Greater palatine foramen
What foramen is behind the greater palatine foramen. Transmit lesser palatine nerve and vessels
Lesser palatine foramen
Thin, flat trapezoid-shaped single facial bone located in the midline; forms the posterior part of the nasal septum
Vomer
Small rectangular bones next to each other, fused to form the bridge of the nose
Nasal bones
Neck Bones: U-shaped or horn shaped bone floating in the neck, superior to the thyroid cartilage ; serves as an attachment for muscles and ligaments of the neck and the tongue
Hyoid bone
Neck Bones: first cervical vertebra. Articulates with the occipital condyle at the bottom of the skull
Atlas
Neck Bones: second cervical vertebra that serves as an attachment for muscles
Axis
