Mandible

Question 1

Corpus

Answer 1

The body, this is the thick boney part of the mandible that anchors the teeth. It’s very hard, dense and resistant ti destruction.

Question 2

Ascending Ramus

Answer 2

This is considerably thinner than the body. This vertical part of the mandible rises above the level of the teeth and articulates with the cranial base.

Question 3

Mandibular Condyle

Answer 3

The large, rounded, articular prominence on the posterosuperior corner of the ramus. It articulates with the temporomandibular joint.

Question 4

Condylar Neck

Answer 4

This is the area just anteroinferior to the condyle.

Question 5

Mandibular Notch

Answer 5

This is the notch between the condylar and the coronoid process.

Question 6

Coronoid Process

Answer 6

Coronoid process of the ramus is thin and triangular, varying widely in shape and robusticity. Its anterior boarder is thickened and convex, and its posterior edge is concave and thinner.

Question 7

Oblique Line

Answer 7

This is a weak eminence that passes from the root of the ramus to the area at the rear of the mental foramen.

Question 8

Alveolar Margin

Answer 8

This margin on the corpus contains the alveoli for the tooth roots except where these have been reabsorbed following tooth loss.

Question 9

Extramolar Sulcus

Answer 9

This is the gutter between the root of the anterior edge of the ramus and the lateral alveolar margin of the last molar.

Question 10

Mandibular Foramen

Answer 10

This enters the bone obliquely, centred in the medial surface of the ramus. It’s on the posterior of the ramus.

Question 11

Gonial or Mandibular Angle

Answer 11

This is the rounded posteroinferior corner of the mandible.

Question 12

Mandibular Symphysis

Answer 12

This technically refers only to the midline surfaces of unfused left and right mandibular halves in individuals less than 1 year of age. Although it is generally used to refer to the anterior region of the mandible between the canines.

Question 13

Mental Protubulance

Answer 13

This is the triangular eminence or boney chin, at the base of the corpus in the anterior symphyseal region.

Question 14

Mental Foramen

Answer 14

This is the large, sometimes multiple foramen located on the lateral corpus surface, near mid corpus, below the premolar region.

Question 15

Mental Spines

Answer 15

These lie near the inferior margin of the inner (posterior) surface of the anterior corpus and they are variable in prominence.

Question 16

Digastric Fossae

Answer 16

These are a pair of roughened depressions on the posteroinferior aspect of the corpus adjacent to the midline.