Skull

Question 1

Neurocranium

Answer 1

Frontal bone
Ethmoid bone
Sphenoid bone
2 parietal bones
2 temporal bones

Coronal suture between frontal and parietal bone

Sagitta suture separates 2 parietal bones

Lamboidal suture separates occipital and parietal bones

Question 2

Cranial base

Answer 2

Anterior Fossa - front portion:

Orbital plate
Groove for superior Sagitta sinus

Middle fossa - both sides with oval holes
Above Oval hole is oval foramen
Below hole is spinosum foramen

Posterior cranial fossa

Question 3

Viscerocranium - face

Answer 3

2 nasal bones
2 lacrimal bones
2 inferior nasal conchae
2 maxillae
2 palatine
2 zygomatic
1 vomer
Mandibula - connected by temperomandibular joint

Orbits (eye sockets) and nasal cavity

Question 4

Lateral view of skull

Answer 4

Temporal region on side divided into 2 parts by zygomatic arch:
- temporal fossa
- infratemporal fossa

Pterion suture - suture where the frontal temporal, parietal and wing of sphenoid meet.

Nasolacrimal duct - tears into nasal cavity
Ramus of mandible- branch groove down the side of mandible

Coronoid process- inner hook of mandible
Mandibular condyle - outer hook of mandible where mandible is attached to face

Question 5

Posterior of skull

Answer 5

Occipital bone
External occipital protuberance - lump

Superior nuchal line - long horizontal line through protuberance.

Inferior nuchal line below superior

Occipital condyles.