Osteology part 2

Question 1

what artery does the pterion overlie

Answer 1

middle meningeal artery

Question 2

Three craniometric points

Answer 2

1. orbitomeatal plane (correct anatomical position brain)
2. Pterion (fusion sphenoid, temporal, parietal and frontal)
3. Glabella (eyebrow) Inion (ext. occipital prot.) (infant head dimensions)

Question 3

Zygomatic arch

Answer 3

Ant: temporal process zygomatic bone
Post: zygomatic process temporal bone

Question 4

3 sutures

Answer 4

1. Frontal
2. Sagittal
3. Lambdoid
4. Squamous?

Question 5

Lamda

Answer 5

coronal suture plus lambdoid suture

Question 6

vertex

Answer 6

squiggly sagittal suture

most superior aspect skull

Question 7

dorsum sellae

Answer 7

houses pit. gland
square shaped process sphenoid

directly beneath ds: basilar part of occipital bone (clivus)

Question 8

bregma

Answer 8

coronal suture

sagittal suture

Question 9

Cribriform plate

Answer 9

of ethmoid bone, near nose on diagram

ROOF OF NASAL CAVITY

Question 10

Sella turtica

Answer 10

Tuberculum sellae
Hypophyseal fossa
Posterior clinoid process
Dorsum sellae

Question 11

Crescent of 4 foramina

Answer 11

1. superior orbital fissure
2. Foramen rotundum
3. Foramen ovale
4. Foramen spinosum

Question 12

Incisive fossa

Answer 12

Nasopalatine nerves

Question 13

Horizontal plate palatine bone

Answer 13

Posterior mouth looking underneath at external surface

Question 14

Pterygoid process

Answer 14

projection from sphenoid

medial and lateral plates, looks like wings of a farfalla

Question 15

Nodding head joint

Answer 15

Atlantooccipital joint

Question 16

Shaking head to say no

Answer 16

Atlantoaxial joint

Question 17

Dens/odontoid process

Answer 17

The odontoid process, or dens, is a superior projecting bony element from the second cervical vertebrae (C2, or the axis). The first cervical vertebrae (atlas) rotates around the odontoid process to provide the largest single component of lateral rotation of the cervical spine

Question 18

Basilar fracture

Answer 18

Countercoup fracture (opposite to side of impact)