Bones of the head

Question 1

Lowest part of the back of the base of the cranium, forming the cradle of the brain.
-Articulates with the parietal bone at the lambdoidal suture and the temporal bone at the squamosal suture

Answer 1

Occipital bone

Question 2

An opening in the occipital bone through which the spinal cord, spina arteries, and nerves pass

Answer 2

Foramen magnum

Question 3

Bones that create teh superior portion of the sides and back of the cranium as well as the posterior 2/3 of the roof of the cranium.
-Articulates with the occipital bone at the labdoidal suture, frontal bone at the coronal suture, and the opposite side with the sagittal suture
-__Vertex of the head__
-Widest part of the cranium

Answer 3

Parietal bones
-__highest part of the parietal bone__

Question 4

Comprises the inferior portion of the sides and base of the cranium.
-Located inferior to the parietal bones and anterior to the occipital bone
-Articulates with parietal bone at the squamosal suture, occipital bone at the labdoidal suture, and the greater wing of the sphenoid bone

Answer 4

Temporal bone

Question 5

Features of the temporal bone
1. Thin superior part of the temporal bone
2. Opening of the ear passage in front of the mastoid process
3. A long thin arched process extending anteriorly from the squama to the zygomatic bone. Determines the widest part of the face
4. Rounded projection of the interior portion of the temporal bone just medial to the lobe of the ear
5. Small oval depression or socket on the underside of the temporal bone

Answer 5

1. Squama
2. External auditory meatus
3. Zygomatic arch
4. Mastoid process
5. Mandibular fossa

Question 6

The anterior 1/3 of the cranium forming the forehead and the part of the eye sockets and the most anterior of the cranial floor
-Makes up the vertical plane of the forehead and the horizontal plane of the crown
-Articulates with the parietal bones at the coronal suture

Answer 6

Frontal bone

Question 7

Features of the frontal bone
1. Rounded prominence on either side of the median line and a little inferior to the center of the frontal bone. A warm area of the face
2. The superior rim of the eye socket
3. The inferior part of the forehead just superior to the medial ends of the eyebrows
4. An elevation between the superciliary arches on the inferior part of the frontal bone immediately above the root of the nose

Answer 7

1. Frontal eminence
2. Supraorbital margin
3. Superciliary arches
4. Glabella

Question 8

These bones lie directly inferior to the glabella. Form the bridge of the nose and the dome over the superior portion of the nasal cavity
-Articulate with each other and the frontal bone to form the root of the nose

Answer 8

Nasal bones

Question 9

Orifice in the face bounded by the margins of the nasal bones and the maxilla

Answer 9

Nasal cavity

Question 10

Diamond shaped bones that form the cheekbones.
-Located on the frontal and lateral planes of the face
-Form part of the inferior and lateral surfaces of the orbital cavity
-Articulates with the zygomatic process of the temporal bone
-Widest part of the face measured from midpoint to midpoint

Answer 10

Zygomatic bones

Question 11

Bones of the upper jaw.
-Skeletal base for most of the superior portion of the face, anterior portion of the mouth, sides and floor of the nasal cavity, and the floor of the eye orbits
-Articulate with each other, forming the nasal spine, a small bony process at the base of the nose

Answer 11

Maxilla

Question 12

Features of the maxilla
1. Sharp bony projection located medially at the inferior margin of the nasal cavity
2. Bony ridge found on the inferior surface of the maxilla and the superior surface of the mandible which contains the sockets for the teeth
3. The ascending part of the upper jaw which gradually protrudes as it rises to meet the frontal bone

Answer 12

1. Nasal spine of the maxilla
2. Alveolar process
3. Frontal process of the maxilla

Question 13

Horseshoe shaped bone forming the lower jaw, it consists of the body and ramus

Answer 13

Mandible

Question 14

Features of the mandible
1. Triangular projection on the inferior of the anterior mandible
2. Bony ridge found on the inferior maxilla and the superior surface of the mandible which contains sockets for the teeth
3. Thin flat process projecting from the anterior portion of the upper ramus
4. Round prominence that articulates with the temporal bone

Answer 14

1. Body - mental eminence
2. Body - alveolar process
3. Ramus - coronoid process
4. Ramus - mandibular condyle