The skull consists of 85 openings and 22 bones divided into the cranial and facial bones.

I). Suture joints anchor the skull bones.     

1). coronal

2). sagittal

3). squamous

4). lambdoid

II). Cranium

The cranium is divided into 8 primary bones.

1). Frontal Bone: 

i). The anterior portion (external)

	supraorbital foramen
	frontonasal suture
	glabella
	frontal sinuses

ii). The posterior portion (internal

	superior wall of the orbit
	anterior cranial fossa

2). Parietal bone:

2 separate bones 

3). Occipital bone:

               base of the skull.

 i). external structure

	foramen magnum
	occipital condyles
	occipital protuberance

ii). internal structure

	posterior cranial fossa
	hypoglossal canal

4). Temporal:

	zygomatic process
	external auditory (acoustic) meatus
	styloid process

mastoid process

jugular foramen

carotid canal

mandibular fossae

5). Sphenoid Bone: Interior butterfly shaped bone.

sella turcica

2 sphenoid sinuses

6). Ethmoid Bone: Forms the bridge of the nose

	cribriform plate
	nasalconcha
	cristi galli

 

III). Facial Bones

The facial skeleton is made up of 14 bones

1). Maxillary Bones: paired bones that form the upper jaw and face

	alveolar processes
	alveolar arch
	palatine processes
	infraorbital foramen
	maxillary sinuses

2). Palatine Bones: back of the hard palate; projections that form part of the nasal cavities

 

3). Zygomatic Bones

zygomatic arch

4). Lacrimal Bones  

5). Nasal Bones 

6). Vomer  

7). Inferior Nasal Conchae 

 

8). Mandible

	mandibular ramus
	mandibular angle
	mandibular condyle
	coronoid process
	mandibular foramen
	mental foramen
	alveolar border

1.   Bones

	frontal
	sphenoid
	zygomatic
	maxilla
	palatine
	lacrimal
	ethmoid

2. Openings

	optic canal
	superior fissure
	inferior orbital fissure

 

V). Nasal Cavity: Constructed of bone and hyaline cartilage.

VI). Sinuses

                Paranasal sinuses are paired in each of these bones

	frontal
	sphenoid
	ethmoid
	maxillary

 

VII). Hyoid Bone

It is the only bone that does not articulate with another bone.

 

 

Smoking skull is from hotbar.com