skull

skull

facial bones

cranial cavity

suture bones

frontal bone

parietal bone

temporal bone

petrous region

• thick region inside

internal auditory canal

mastoid process

styloid process

• long prong

stylomastoid foramen

carotid canal

squamous region

zygomatic process

zygomatic arch

mandibular fossa

tympanic region

hole for ear

external auditory canal

blue= occipital bone

green= foramen magnum

sphenoid bone

body of sphenoid bone

greater wing

lesser wing

sella turcica

ethmoid bone

cribriform plate

ethmoid bone

cribriform foramina

• pink= anterior cranial fossa

• green= middle cranial fossa

• purple= posterior cranial fossa

• red= cribriform plate

temporal process of zygomatic bone

lacrimal bone

• next to eye/nose

lacrimal groove

The groove itself is a depression in the bone that helps form the space for the lacrimal sac.

nasal bones

blue= 1st set on nose

purple= 2nd set inside nose and is flat

vomer

bottom of nose

palatine bone

blue= maxilla

purple= mandible

temporomandibular joint

paranasal sinuses

orbital complex

auditory ossicles

hyoid bone

What passes through the holes in the cribriform plate?

Olfactory nerve fibers (CN I).

What passes through the foramen magnum?

The spinal cord (continuing as the medulla oblongata), vertebral arteries, and spinal roots of the accessory nerves (CN XI).

Which two bones join to form the zygomatic arch?

The zygomatic bone and temporal bone.

Which two bones articulate to form the jaw joint?

The mandible and temporal bone (temporomandibular joint, or TMJ).

Which bone contains the middle ear cavity and inner ear?

The temporal bone.

Where does the eardrum sit?

At the boundary between the external acoustic meatus and the middle ear.

What sits in the sella turcica?

The pituitary gland (hypophysis).