Facial bones of the skull

Question 1

1) Zygomatic Bone (aka cheekbone)

Answer 1

• paired bone; forms much of the lateral wall of the orbit and the lateral-inferior margins of the anterior orbital opening

Question 2

2) Nasal Bone

Answer 2

• paired bone; small bones that articulate (join) with each other anteriorly to form the bony base (bridge) of the nose; often damaged when the nose is broken

Question 3

3) Lacrimal Bone

Answer 3

• paired bone; small, rectangular bone that forms the medial wall of the orbit.

Question 4

4) Maxilla Bone

Answer 4

• paired bone; forms the upper jaw, much of the hard palate, the medial floor of the orbit, and the lateral base of the nose

Question 5

5) Vomer Bone

Answer 5

• single bone; forms the lower portion of the nasal septum

Question 6

6)Palatine Bone

Answer 6

• paired bone; irregularly shaped bones that contribute small areas to the lateral walls of the nasal cavity and the medial wall of each orbit

Question 7

7) Mandible Bone

Answer 7

• single bone; forms the lower jaw and is the only moveable facial bone of the skull; at the time of birth consists of paired right and left bones that fuse together

Question 8

8) Mental Foramen

Answer 8

• on the mandible; a paired opening located on the anterior surface of the mandible; passage for a sensory nerve that supplies the chin

Question 9

9) Coronoid Process

Answer 9

• on the mandible; the anterior (flattenned) projection of the mandibular ramus

Question 10

11) Mandibular Condyle

Answer 10

• on the mandible; the posterior projection of the mandibular ramus; articulates (joins) with the mandibular fossa of the temporal bone forming the temporomandibular joint that allows for opening and closing of the mouth