Basic Intraoral Anatomyof the Head, Neck, and Face

Question 1

Floor of Nasal Cavity

Answer 1

Wall of dense cortical bone that forms the floor of the nasal cavity. (Appears radiopaque on maxillary incisor)

Question 2

Superior Foramina of the Incisive Canal

Answer 2

Two tiny openings in bone located on the floor of the nasal cavity, join to form the incisive canal. (Appears radiolucent on maxillary incisor periapical)

Question 3

Alveolar Ridge

Answer 3

Bony ridge that contains alveoli (tooth sockets). (Appears radiopaque)

Question 4

Alveolar Process

Answer 4

Upper aspect of the body of the mandible. (Appears radiopaque)

Question 5

Mental Ridge

Answer 5

Chin.

Question 6

Mental Foramen

Answer 6

Small opening in bone (circle, dot) on the external mandible throughout which blood vessels and nerves supplying the lower lip pass, appears as a small area (RADIOLUCENT) area on the mandibular premolar.

Question 7

Internal Oblique Ridge

Answer 7

Down and forward from the ramus to the third molar region or to the mylohyoid ridge. (Appears as a radiopaque band that may run parallel on the external oblique ridge on the mandibular.)

Question 8

Maxillary Tuberosity

Answer 8

Round prominence of bone on the alveolar ridge through which blood vessels and nerves enter the Maxilla. (Appears radiopaque on maxillary molar periapical.)

Question 9

Zygomatic Process of the Maxilla

Answer 9

Process of the temporal bone that attaches to the cheek bone to form the zygomatic arch outer portion of the cheek prominence. (Appears radiopaque)

Question 10

Coronoid Process

Answer 10

Thin prominence of the bone projecting from the anterior ramus. (Appears radiopaque triangle below the maxillary tuberosity of maxillary molar.

Question 11

Zygoma

Answer 11

Cheek bone. (Appears radiopaque bands on maxillary posterior)

Question 12

Nasal Septum

Answer 12

Cartilage dividing the right and left nasal fossa. (Appears radiopaque)

Question 13

Anterior Nasal Spine

Answer 13

Triangle projection from the floor of the nasal fossa.

Question 14

Lateral Fossa/Canine Fossa

Answer 14

Slightly concave area in bone located below and between the maxillary lateral incisors and the maxillary canine. (Appears radiolucent)

Question 15

Mental Fossa

Answer 15

Depressed area of bone on the external surface of the mandible. (Appears radiolucent above metal ridge)

Question 16

Inferior Nasal Conchae

Answer 16

Thin scrolled bony extensions of the nasal fossa wall. (Appears radiopaque on maxillary incisor)

Question 17

Nasal Fossa

Answer 17

Large open compartment of the bone located above the maxilla, divided by nasal septum.

Question 18

Humulus/Humular Process

Answer 18

Small hook shaped portion of bone extending from the sphenoid bone down and located behind the maxillary tuberosity region. (Appears radiopaque)

Question 19

Incisive Foramen

Answer 19

Located at the midline of the anterior hard palate-behind central incisors.

Question 20

Lingual Foramen

Answer 20

Small opening located in the midline of the internal aspect of the mandible. (Appears as a small radiolucent dot in the center of the radiopaque)

Question 21

Mylohyoid Ridge

Answer 21

Bony linear projection found on inner surface of mandible extending downward from the ramus and ending near the apices of the mandibular molars.

Question 22

Submandibular Fossa

Answer 22

Depression in the bone and on lingual side of the mandible.

Question 23

Maxilla

Answer 23

Two bones that form the upper jaw. The upper teeth are located in the alveolar process on the maxilla. (Appears radiopaque)

Question 24

Inner and Outer Table

Answer 24

Inner and outer layers of the skull that protects the brain.

Question 25

Ramus

Answer 25

Two vertical portions of the mandible which are perpendicular to the body of the mandible, (Appears radiopaque)

Question 26

Body

Answer 26

Curved horizontal part of the mandible that extends from one ramus to another. (Appears radiopaque)

Question 27

Mandible

Answer 27

Single bone which makes up the lower jaw and made of the ramus, the body, and alveolar process of the mandible. (Appears radiopaque)

Question 28

Frontal Bone

Answer 28

Forehead

Question 29

Zygoma

Answer 29

Cheek bones

Question 30

Orbit

Answer 30

Eye cavity

Question 31

Mandibular Canal

Answer 31

Canal within the mandible that contains the inferior alveolar nerve, inferior alveolar artery and inferior alveolar vein.

Question 32

Maxillary Sinus

Answer 32

One of the four paranasal sinuses located near the nose. Located below cheeks, above the teeth.

Question 33

The TMJ connects the _______ to the _______ _______ on the side of the head.

Answer 33

Mandible, to the temporal bone.