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OPP Lect 23

QuestionAnswer
Cranial Vault Vs. Cranial Base development Vault: develops from membranous bone. Base: develops from cartilaginous bone.
Unpaired bones of the vault 1.Occiput. 2.Sphenoid.
Paired bones of the vault 1.Frontal (meptopic suture). 2.Parietals. 3.Temporals.
What all does the cranial vault consist of? 1.frontal bone. 2.Parietal bones. 3.squamous portion of the occipital bone. 4.Greater wing of the sphenoid bone. 5.Temporal bones.
What motions will occur between the unpaired/midline bones of the vault? Flexion & extension.
What motions will occur between the paired bones of the vault? Internal & External rotation.
Flexion of midline bones cuases what in paired bones? External Rotation.
Extension of midline bones causes what in paired bones? Internal Rotation.
What does the occiput articulate with? 1.Atlas (at condyles). 2.Sphenoid (synchondrosis). 3.Parietal bones (lambdoidal suture). 4.Temporal bones (occipitomastoid suture).
What does the sphenoid bone articulate with? 1.Occiput (SBS). 2.Temporal bones (petrous part). 3.Ethmoid (anteriorly). 4.Palatine bones (Inferiorly). 5.Frontal bone. 6.Vomer (inferiorly).
which wings of the sphenoid articulate with the frontal bone? BOTH
Dysfunction patterns of Occiput 1.Injury to O-A joint. 2.Trauma to Occiput. 3.muscle dysfunction of suboccipital muscles. 4.Sutural restrictions with temporal and parietal bones.
Dysfunction patterns of sphenoid 1.Linkage to CN I-VI. 2.Endocrine problems. 3.Trauma with forceps delivery.
What does the Frontal bone articulate with? 1.Parietals. 2.Ethmoid. 3.Both wings of sphenoid. 4.Lacrimal & nasal bones. 5.Zygomatic bone. 6.Maxillary bone.
What has inferior attachments to the frontal bone bilaterally? Falx Cerebri. **Attaches at Fronto-ethmoidal articulation
When do the frontal sinuses form? ~6y/o
Movement of frontal bone 1.Flexion: Down, opening at bregma. 2.Extension: Up, closing and becoming flatter.
Overlaping order of the 4 bones articulating at the Pterion Deep to superficial: 1.Frontal. 2.parietal. 3.sphenoid. 4.temporal. **wedging the frontal bone inside others will restrict spehnoid and thus SBS.
Treatment for Frontal bone SD Frontal Lift: mobilizes the frontal bone, freeing up the flax cerebri. **Helps free up sutures, frontal sinus congestion, and frontal headaches.
What bones do the parietal bones articulate with? 1.Contralateral parietal bone. 2.Sphenoid. 3.Temporal. 4.Occipital. 5.Frontal.
What bone encloses the anterior and posterior divisions of the middle meningeal artery? Parietal bones
What bone covers the motor cortex? Parietal bones **located in parietal lobes.
Parietal bones motion 1.Internal rotation (w/ ext): Opens up in the center at sagital suture, inferior portion moves inward. 2.External rotation (Flexion): fold down about sagital suture, inferior portion moves outward.
Treatment for parietal bone SD Parietal Lift: helps with hypertensive headaches, impulsive/aggressive children, idiopathic epilepsy, enhances drainage from superior sagittal sinuses.
What bones do the Temporal bones articulate with? 1.Sphenoid (at petrous part). 2.Occipital (occipitalmastoid suture). 3.Parietal (superiorly). 4.Zygoma. 5.Mandible.
Temporal bones motion 1.Internal rotation (w/ extension): mastoid processes move outward. 2.External rotation (w/ flexion): mastoid processes move outward.
What bone should be checked in a patient with torticollis? TEMPORAL BONE. **SCM attaches to mastoid process.
Temporal bone axis of rotation is parallel to the ________? Ext Aud. Canal
What is the most common dysfunction seen with temporal bone SD? Vertigo
SD of what bone causes strabismus? TEMPORAL (extraocular CN are in contact with temporal bone).
Other common temporal SDs 1.Dyslexia. 2.TMJ. 3.Eustachian tube. 4.CNVII and CNVIII.
Treatment for temporal SD Temporal balancing through decompression
Created by: WeeG