Lec. 4 Skull Bones Flashcards
What are the cranial bones of the skull?
- Frontal bone
- Parietal bones
- Temporal bones
- Occipital bone
- Sphenoid bone
- Ethnoid bone
What are the Paranasal sinuses?
Frontal sinus
Sphenoid sinus
Ethmoid sinuses
Maxillary sinus
What is the supraorbital margin
Ridge that separates the forehead and the superior part of the orbit
What’s a supraorbital foramen?
Passage way for blood/nerves
What are the landmarks for the frontal bone
- surpraorbital margin
- supraorbital foramen
Landmarks of the Temporal bone
Styloid process Mastoid process Stylomastoid foramen Carotid foramen Jugular foramen Zygomatic process Mandibular fossa External/internal auditory meatus
Landmarks of the occipital bone
External occipital protuberance Superior nuchal line Inferior nuchal line Occipital condyles Foramen magnum
Landmarks of the sphenoid bone
*articulates with every cranial bone
- Bat like
Sphenoid sinus (part of body of bone)
Sella turcica (house the pituitary gland)
Greater wings
Lesser wings
Pterygoid processes (leg like)
Optic foramen
Superior orbital fissure
Foramen ovale
Foramen rotundum
Ethmoid bone landmarks
Cribriform plate Olfactory foramina Crista galli Perpendicular plate Lateral mass Ethmoidal sinuses Superior nasal concha (2) Middle nasal concha (2)
What are the facial bones
Nasal bones (2) Lacrimal bones (2) Zygomatic bones (2) Maxilla (2) Palatine bones (2) Vomer Inferior nasal concha (2) Mandible
What cranial bone is the olfactory foramina associated with
Ethmoid bone
What cranial bone is the optic foramen associated with
Sphenoid bone
What cranial bone is the superior orbital tissue associated with
Sphenoid bone
What cranial bone is the foramen ovale associated with
Sphenoid
What cranial bone is the foramen rotundum associated with
Sphenoid
What cranial bone is the internal auditory meatus associated with
Temporal bone
What cranial bone is the stylomastoid foramen associated with
Temporal bone
What cranial bone is the jugular foramen associated with
Temporal bone
What cranial bone is the carotid foramen associated with
Temporal bone
What cranial bone is the foramen magnum associated with
Occipital bone
What is the hyoid bone
- located in the anterior neck
- doesn’t articulate w/ any other bone
- attachment sites for muscles
- assists with tongue movements & swallowing
