bones of the skull

The skull consists of two main parts, what are these parts?

The neurocranium and the viscerocranium

What does each main part of the skull do?

neurocranium - keeps and protects the brain and sensory organs - ears and eyes

Viscerocranium - surrounds the upper part of the respiratory and digestive tract

The neurocranium is futher divided into two main parts, what are these parts?

The Calvaria (or cranial vault) - upper part of the neurocranium, covers the cranial cavity containing the brain

The cranial base

There are three main sutures of the calvaria name them and state where they are

Sagittal suture - between the paired parietal bones

Coronal suture - between the frontal and parietal bones

Lambdoid suture - between the parietal and occipital bones

how many bones make up the neurocranium and what are they?

The occipital bone - unpaired

The parietal bones - paired

The frontal bone - unpaired

Ethmoid bone - unpaired

Sphenoid bone - unpaired

Temporal bones - paired

The viscerocranium consists of many bones that form the facial skeleton, how many bones and name them

14 bones

Mandible - unpaired

Maxilla (maxilae) - paired

Palatine - paired

Nasal - paired

Zygomatic - paired

Lacrimal - paired

Inferior nasal concha - paired

Vomer - unpaired

Label the anterior cranial fossa

Label the parts of the middle cranial fossa

Label the parts of the posterior cranial fossa

The jaws are the teeth bearing bones, they consist of 3 bones what are the bones?

The mandible - unpaired bone forming the lower jaw

Maxillary bones - paired, forming the upper part of the jaw

Which bone of the viscerocranium forms the major part? (About 25%)

The jaws

What type of bone is the maxillae?

An irregular shaped bone

What does the maxillae support?

The superior teeth

What structures does the maxillae form?

The nasal cavity, orbital cavity, hard palate

What does the maxillae contain?

Maxillary sinus

The maxillae forms the skeleton of which facial feature?

The anterior cheek