click below
click below
Normal Size Small Size show me how
skull anatomy 1
skull anatomy set 1 for comp
| Question | Answer |
|---|---|
| What passes through the foramen magnum? | inferior medulla oblongata |
| How do the occipital condyles sit and articulate? | they slope anteriorly to articulate with the atlas |
| Major anatomy of the temporal bones: | squamous and tympanic portions, styloid process, zygomatic process, mastoid process. |
| What form the TMJ? | the mandibular fossa and the condyle of the mandible |
| The zygomatic process of the temporal bone articulates with this to form the: | the temporal process of the zygomatic bone to form the zygomatic arch |
| Lambda | junction of the lambdoidal and sagittal sutures |
| Vertex | highest point of the head |
| Inion | EOP – external occipital protuberance |
| What shape is the cranium? | oval, wider posteriorly |
| Glabella | the smooth elevation between the superciliarry arches (between the eyebrows) |
| The frontonasal suture is where? | at the junction of the frontal squama and nasal bones |
| Nasion | midpoint of the frontonasal suture (bridge of the nose) |
| Orbital plates | the horizontal portion of the frontal bone that forms the orbital roofs |
| Cribiform plate | the horizontal portion of the ethmoid |
| Crista galli | a thick conical process that projects superiorly from the anterior midline of the ethmoid bone |
| Perpendicular plate | vertical portion of the ethmoid bone forming the superior bony septum |
| Dorsum sellae | posterior boundry of the sella turcica |
| Tuberculum sellae | anterior boundary of the sella turcica |
| Posterior clinoid process | project anteriorly from the dorsum sellae |
| Anterior clinoid process | project posteriorly from the dorsum sellae |
| Petrous portion is found on what bone? | temporal |
| Petrous portion | petrous pyramids, thickest densest bone in the cranium |
| Petrous ridge | the upper border of the petrous portion |