Skull Bones

What bone forms the forehead and upper part of the eye sockets?

Frontal bone

What sinus is located within the frontal bone above the eyes?

Frontal sinus

Which bone forms the sides and roof of the cranium?

Parietal bone

Which suture joins the two parietal bones together?

Sagittal suture

Which suture connects the parietal bones to the frontal bone?

Coronal suture

Which bone forms the back and base of the skull?

Occipital bone

What rounded projections articulate with the first cervical vertebra (atlas)?

Occipital condyles

What bump is located on the back of the skull?

External occipital protuberance

Which suture connects the occipital bone with the parietal bones?

Lambdoid suture

What large opening in the occipital bone allows the spinal cord to pass through?

Foramen magnum

Which bone forms the sides of the skull around the ear region?

Temporal bone

Which suture joins the temporal bone and the parietal bone?

Squamous suture

What projection of the temporal bone connects to the zygomatic bone to form the cheek arch?

Zygomatic process

What depression in the temporal bone articulates with the mandible?

Mandibular fossa

What opening in the temporal bone leads to the ear canal?

External acoustic meatus

What round projection is located behind the ear for muscle attachment?

Mastoid process

What bone forms the cheekbones?

Zygomatic bone

What bone forms the bridge of the nose?

Nasal bone

What bone forms the posterior part of the hard palate?

Palatine bone

What small bone in the medial wall of the orbit contains the tear duct opening?

Lacrimal bone

What bone forms the upper jaw and holds the upper teeth?

Maxilla bone

What bone forms the lower jaw and is the only movable skull bone?

Mandible bone

What openings in the mandible allow nerves and blood vessels to pass through the chin?

Mental foramen

What pointed projection on the mandible is for muscle attachment?

Coronoid process

What bone forms the lower part of the nasal septum?

Vomer bone

What bone is shaped like a butterfly and spans the base of the skull?

Sphenoid bone

What depression in the sphenoid bone holds the pituitary gland?

Sella turcica

What air-filled cavities are found within the sphenoid bone?

Sphenoid sinus

What bone forms part of the nasal cavity and the medial wall of the orbits?

Ethmoid bone

What part of the ethmoid bone has tiny holes for olfactory nerves to pass through?

Cribriform plate

What vertical projection of the ethmoid bone anchors the brain’s covering membranes (meninges)?

Crista galli

What part of the ethmoid bone forms the upper part of the nasal septum?

Perpendicular plate