bone practical (cranium) Flashcards
What is the frontal bone?
Forehead bone
What is the supraorbital foramen?
Name this foramen
What is the frontal sinus?
Cavity within the frontal bone
What is the coronal suture?
The suture between the parietal and frontal bones of the skull
What is the occipital bone?
Back of head/base of skull
What is the foramen magnum?
A large opening at the base of the skull through which the brain connects to the spinal cord
What are the occipital condyles?
Rounded projections lateral to the foramen magnum that articulate with the first cervical vertebra (atlas)
What is the lambdoidal suture?
Suture that separates parietal bones from occipital bone
What is the ethmoid bone?
Forms part of the posterior portion of the nose, the orbit, and the floor of the cranium
What is the cribriform plate?
The horizontal plate of the ethmoid bone separating the cranial cavity from the nasal cavity
What is the perpendicular plate?
Forms superior part of nasal septum
What is the crista galli?
Name this bony landmark
What is the middle nasal concha?
The middle thin, spongy, bony plate with curved margins, part of the ethmoidal labyrinth, projecting from the lateral wall of the nasal cavity and separating the superior meatus from the middle meatus
What is the sphenoid bone?
Bone that joins all of the bones of the cranium together
What is the sella turcica?
Depression in the sphenoid bone where the pituitary gland is located
What are the sphenoidal sinuses?
Deep to sella turcica
What is the temporal bone?
Bone that forms parts of the side of the skull and floor of the cranial cavity
What is the external auditory meatus?
Ear canal
What is the zygomatic process?
Name this part of the temporal bone
What is the mastoid process?
Round projection on the temporal bone behind the ear
What is the styloid process?
Pole-like process extending downward from the temporal bone on each side of the skull
What is the mandibular fossa?
The depression in the temporal bone into which the condyle of the mandible fits
What is the squamosal suture?
Between parietal bone and temporal bone on side of the skull, bordered in back by occipital bone
What is the parietal bone?
Either of two skull bones between the frontal and occipital bones and forming the top and sides of the cranium
What is the sagittal suture?
Between parietal bones
What is the vomer bone?
Forms the inferior portion of the nasal septum
What are the inferior nasal conchae?
The lowermost scroll-shaped bones on the sidewalls of the nasal cavity
What is the nasal bone?
Forms the bridge of the nose
What is the lacrimal bone?
Small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts
What is the palatine bone?
Lateral to palatine process
What is the zygomatic bone?
Cheek bone
What is the temporal process?
Name this part of the zygomatic bone
What are maxillae?
The two fused bones forming the upper jaw
What are the infraorbital foramina?
Openings in the maxilla that transmits blood vessels and nerves
What is the palatine process?
Forms the roof of the mouth
What is the maxillary sinus?
Sinus on either side of the nasal cavity below the eyes
What is the mandible?
Lower jaw bone
What are the mental foramina?
Openings in chin for nerves and blood vessels
What is the mandibular condyle?
Articulation point of the mandible with the mandibular fossa of the temporal bone
What part of the bone is highlighted?
Coronoid process of mandible
