Cranial Bones-Anatomy
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| show | Frontal Squama; Forehead; Vault
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| The horizontal portion of the frontal bone forms what? | show 🗑
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| On both sides of the superior portion of the frontal squama is a rounded elevation called __________ __________. | show 🗑
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| The arched ridges of the frontal squama that correspond to the position of the eyebrows is called the ______________ arches. | show 🗑
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| show | Supraorbital Margins; Supraorbital Foramen
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| The smooth elevation between both Superciliary arches is the ___________. | show 🗑
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| show | Frontosphenoidal suture
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| The frontal squama articulates with the nasal bones at the ______________ suture. | show 🗑
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| What is the midpoint of the frontonasal suture? | show 🗑
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| The frontal bone articulates with which cranial bones? | show 🗑
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| What separates the orbital plates of the horizontal portion of the frontal bone? | show 🗑
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| show | Cribiform plate
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| show | Nasal Spine
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| What does the posterior portion of the orbital plate of the frontal bone articulate with? | show 🗑
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| The small cube shaped bone that forms part of the cranial floor: | show 🗑
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| The 2 light, spongy lateral masses of the ethmoid are called the ____________. | show 🗑
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| The Horizontal portion of the ethmoid received into the ethmoid notch of the frontal bone is the ___________ ______. | show 🗑
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| The cribiform plate of the ethmoid has many foramina for the transmission of what? | show 🗑
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| show | Crista Galli
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| What does the Crista Galli serve as an attachment for? | show 🗑
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| What is the falx cerebri? | show 🗑
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| The vertical portion of the ethmoid is called what? | show 🗑
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| The perpendicular plate of the ethmoid along with the nasal spine of the frontal bone forms the superior portion of the bony _________ of the nose. | show 🗑
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| show | Ethmoidal sinuses or air cells
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| The air cells or ethmoidal sinuses on both lateral masses of the ethmoid bone are divided into how many groups? What are they? | show 🗑
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| show | Orbits; Nasal
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| Projecting inferiorly from each medial labyrinth wall of the ethmoid are 2 thin, scroll-shaped processes called what? | show 🗑
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| show | Frontal and Sphenoid Cranial bones
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| The 2 parietal bones are what shape? | show 🗑
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| show | Sagittal Suture
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| The prominent bulge on each parietal bone at the central-superior portion where the width of the head should be measured is called the ____________ ___________. | show 🗑
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| show | The opposite Parietal, Temporal, Occipital, Frontal and Sphenoid bones
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| show | Sphenoid
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| show | Base of the cranium, anterior to the temporal bones and basilar part of the occipital bone
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| The part of the sphenoid bone that projects inferior from both sides of the body of the bone is called what? | show 🗑
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| The body of the sphenoid bone contains 2 ____________ which are incompletely separated by a median septum. | show 🗑
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| The anterior surface of the body of the Sphenoid bone forms the posterior bony wall of what? | show 🗑
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| What is the deep depression on the superior surface of the sphenoid and what does it protect? | show 🗑
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| show | In the midsagittal plane of the cranium 3/4 inches anterior and 3/4 inches superior to the EAM.
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| The Sella Turcica is bound anteriorly by the ______________ ___________ and posteriorly by the ___________ ____________. | show 🗑
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| show | Anterior Clinoid process for the tuberculum and Posterior Clinoid process for the Dorsum
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| show | Clivus
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| The Clivus supports what? | show 🗑
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| show | Carotid Sulcus; Carotid Artery and Cavernous Sinus
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| show | The Optic Groove
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| The lesser wings of the sphenoid form the posteromedial portion of the roofs of the ___________, the posterior portion of the anterior _____________ fossa and the upper margin of the ___________ ____________ fissures and optic canals. | show 🗑
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| show | Anterior Clinoid proceses
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| The 3 openings on the greater wings of the sphenoid for the passage of nerves and blood vessels which are subject to radiologic investigation are: | show 🗑
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| The processes that arise from the lateral portions of the inferior surface of the body of the sphenoid and the medial inferior surface of the lesser wings are called: | show 🗑
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| The Pterygoid processes consists of 2 plates of bone called __________ __________ which are fused at the superoanterior parts: | show 🗑
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| show | Pterygoid Hamulus
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| show | Medial laminae of the Ptyeroid process due to the Pterygoid Hamulus
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| show | Nasal Cavity.
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| show | All 7 other cranial bones.
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| show | Squama, 2 Occipital Condyles, & the Basilar portion
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| What passes through the Foramen Magnum? | show 🗑
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| What prominent process on the Occipital bone lies midway between the summit of the bone and the foramen magnum? | show 🗑
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| show | Inion
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| show | Internal Occipital Protuberance
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| The Occipital Condyles articulate with what? | show 🗑
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| What is the articulation between the Occipital condyles and the Atlas of the C-Spine termed? | show 🗑
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| show | Occipitoatlantal Joints
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| show | Anterior ends of the Occipital Condyles
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| show | Jugular Foramen; Jugular Vein for blood drainage from the brain and 3 cranial nerves.
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| The basilar portion of the occipital bone joins the body of the sphenoid bone at the ___________ _________ of the sphenoid. This junction is called the __________. | show 🗑
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| show | 2 Parietal, 2 Temporal, the Sphenoid and C-1 (Atlas)
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| Each Temporal bone consists of a ___________ portion, a ____________ portion, a _____________ process, a ____________ process and a ______________ portion that contains the organs of __________ and ________. | show 🗑
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| show | Zygomatic; Zygomatic arch
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| The rounded eminence on the inferior portion of the zygomatic process of the temporal bone is the _____________ ___________ forms the anterior portion of the _______________ fossa that receives the condyle of the mandible. | show 🗑
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| show | Temporomandibular Joint (TMJ)
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| show | Tympanic Portion
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| show | Styloid Process
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| The 1st air cell of the mastoid portion of the temporal bone situated at the upper anterior portion is called the __________ ___________. | show 🗑
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| show | Petrous Portion; Petrous Pyramid
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| The Petrous Pyramid projects medially and anteriorly between the ______________ and the ________________. The apex of the petrous pyramid articulates with the body of the __________ bone. | show 🗑
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| show | The Carotid canal on the inferior portion of the Petrous Pyramid
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| show | Petrous Ridge; Top of the Ear Attachment (TEA)
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| The temporal bone articulates with which bones? | show 🗑
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| show | Frontal, Ethmoid, Sphenoid
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| Which cranial bone helps to complete the zygomatic arch? | show 🗑
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| show | Hearing and balance
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| show | Tympanic; Tympanic; Ossicles
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| The passage in the middle ear that communicates with the nasopharynx and equalizes air pressure in the middle ear is the _____________ __________. | show 🗑
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| show | Inner ear
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| What bone contains the maxillary sinus? | show 🗑
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| show | Mandible
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| show | Hyoid
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| The petrous pyramid projects anteriorly and medially at an angle of ________ degrees for the typical skull called a _________________ skull. | show 🗑
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| Which skull type is short from front to back, wide for side to side and shallow from vertex to base? What is the angle of the petrous pyramid? | show 🗑
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| show | Dolichocephalic; 40 degrees
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| show | Maxilla and Palatine
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| show | Synovial, Hinge-gliding
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| The smallest bones of the skull which contains the _____________ foramen for passage for tear ducts: | show 🗑
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| Near the petrous apex is a foramen through which the internal carotid artery passes is the __________ __________. | show 🗑
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| show | Spinosum, Ovale, Rotundum
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| The opening in the sphenoid bone that allows for passage of the optic nerve and opthalmic artery is the ___________ __________. | show 🗑
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| The anterior part of the occipital bone contains a deep notch that forms part of an important large opening in the skull that allows blood to drain via the internal jugular vein and passage of 3 cranial nerves: | show 🗑
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| show | 3 Cranial; 4 Facial
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| The superior aspect of the sphenoid bone holds the _________ gland. | show 🗑
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| The bones that make up the cranial floor: | show 🗑
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| show | 8
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| How many bones in the skull? | show 🗑
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| What suture lies between the Parietal and Occipital bones? | show 🗑
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| The point where the coronal and sagittal sutures meet: | show 🗑
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| show | Squamosal
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| The point where the Parietal bone, Squamosal suture and the greater wing of the Sphenoid bone: | show 🗑
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| The Asterion is the junction of what? | show 🗑
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| show | Sagittal and Lamdoidal suture
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