RAD 160 Skull
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How many bones make up the cranium? | show 🗑
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| show | sutures
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| Which skull suture is found between the frontal and parietal bones? | show 🗑
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| show | temporal
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| show | temporal
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| The largest and most dense bone in the face is? | show 🗑
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| show | dolichocephalic
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| Which is located in the middle ear? cochlea, bony labyrinth, tympanic membrane, EAM | show 🗑
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| Which is located in the internal ear? concha, auditory tube, tympanic membrane, semicircular canals | show 🗑
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| show | 1,2 & 3
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| Which method of examining the skull demonstrates petrous ridges in the orbits, ethmoid and frontal sinuses, and crista galli? | show 🗑
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| show | OML
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| show | 15 cephalad
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| show | OML or IOML
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| If the IOML is perpendicular to the IR for AP axial (Towne), how much should the CR be angled? | show 🗑
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| show | dorsum sellae and posterior clinoid processes
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| What is the CR angulation for demonstration of entire foramen magnum during AP axial (Towne)? | show 🗑
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| Which methods will clearly demonstrate petrous ridges, foramen magnum, dorsum sellae, and posterior clinoid processes? 1) Haas 2) Towne 3) Schuller | show 🗑
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| What is the average CR angle for PA axial (Haas) of the skull? | show 🗑
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| show | IOML
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| In what projection are mastoid processes, sphenoid sinuses and carotid canals clearly demonstrated? | show 🗑
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| What bones make up the calvarium? | show 🗑
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| The 6 areas of incomplete ossification in a newborn skull are called? | show 🗑
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| The opening into the apex of the orbit for transmission of optic nerve and opthalmic artery is? | show 🗑
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| Which foramen lie in the sphenoid bone? 1) optic foramen 2) jugular foramen 3) foramina rotundum | show 🗑
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| What are the names of the 2 large openings at the base of the anterior occipital bone for blood vessels and nerves? | show 🗑
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| show | lacrimal bone
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| Which 2 bones form the roof of the mouth? | show 🗑
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| Which parts of the patient's face touch the IR for the PA axial (Caldwell)? | show 🗑
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| show | synovial - hinge & gliding
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| Which cranial bone contains the sella turcica? | show 🗑
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| show | halfway between outer canthus and EAM
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| What is another name for the parietoacanthial projection of facial bones? | show 🗑
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| For the Waters view, the OML should be placed at what angle to the IR? | show 🗑
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| The parietoacanthial projection of facial bones is often modified so there is less angulation of the facial bones. For this modification, the OML is adjusted to what degree? | show 🗑
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| show | MML
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| show | 1,2 & 3
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| On which projections will both zygomatic arches be demonstrated? 1) tangential 2) SMV 3) AP axial | show 🗑
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| show | 15 degrees toward side being examined
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| show | 15 degrees away from side being examined
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| show | IOML
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| show | 30 degrees caudad
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| What is centered to the IR for PA projection of mandibular rami? | show 🗑
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| show | 25 cephalad
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| What is the CR angulation for axiolateral oblique of TMJs? | show 🗑
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| show | 1" posterior to outer canthus
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| show | lateral, SMV, PA axial (Caldwell)
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| Which sinuses are developed at birth and visible radiographically? | show 🗑
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| show | inferior to the floor of the maxillary sinuses
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| The largest sinus the? | show 🗑
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| Which sinus is directly below the sella turcica? | show 🗑
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| show | frontal
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| Which sinus group is within the lateral masses of labyrinths? | show 🗑
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| show | demonstrate air/fluid levels
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| For lateral paranasal sinuses, where is the CR directed? | show 🗑
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| Which projection best demonstrates frontal sinuses? | show 🗑
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| show | sphenoidal
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| For the open-mouth Waters method, the CR should exit where? | show 🗑
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| Which sinus is immediately below the sella turcica? | show 🗑
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| What should be clearly demonstrated on lateral projection of paranasal sinuses? 1) all 4 sinus groups 2) superimposed orbital roofs 3) superimposed mandibular rami | show 🗑
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| show | 3
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| What is projected below the maxillary sinuses for the Waters method? | show 🗑
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| The Waters method of the sinuses requires OML is placed how many degrees from the plane of the IR? | show 🗑
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| What projection best demonstrates the maxillary sinuses? | show 🗑
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| To demonstrate ethmoidal and sphenoidal sinuses in SMV, which must occur? 1) patient is recumbent 2) IOML parallel to IR 3) CR perpendicular to IOML and horizontal | show 🗑
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| show | 3/4" anterior to EAM
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| show | 1,2 & 3
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| show | suspended
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| show | acanthion
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| show | 15 degrees caudad
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| show | IOML
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| show | rotundum
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| What are positioning lines in reference to IR for Lateral skull? | show 🗑
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| Where is CR directed for Lateral skull? | show 🗑
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| show | nasion
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| What is positioning line in reference to IR for PA skull? | show 🗑
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| How and where is CR directed for PA axial (Caldwell) skull? | show 🗑
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| Where should the CR enter for SMV skull? | show 🗑
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| Which foramina are best demonstrated in SMV skull? | show 🗑
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| show | perpendicular to lateral surface of zygoma, entering between outer canthus & EAM
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| What are the positioning lines in reference to the IR for Parietoaanthial facial bones? | show 🗑
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| How should CR be directed for PA Axial (Caldwell) for orbital rims? | show 🗑
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| show | perpendicular to the bridge of the nose, 1/2" distal to nasion
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| show | perpendicular to IOML on MSP of throat 1" posterior to outer canthus
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| For AP axial (modified Towne) of zygomatic arches, where is the CR directed? | show 🗑
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| show | perpendicular, exiting acanthion
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| What positioning line is perpendicular to the IR for PA mandibular rami? | show 🗑
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| show | 20-25 cephalad, exiting acanthion
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| How should the head be position for the Axiolateral mandible if no area of interest is specified? | show 🗑
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| show | true lateral, rotated 30 degrees toward IR, rotated 45 degrees toward IR
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| show | 25 degrees cephalad through the area of interest
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| show | OML perpendicular to IR
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| How and where is CR directed for AP axial TMJs? | show 🗑
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| Where is the IR centered for Axiolateral oblique TMJs? | show 🗑
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| For Axiolateral oblique TMJs, how should MSP of head be positioned? | show 🗑
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| What are the positioning lines in reference to the IR for Axiolateral oblique TMJs? | show 🗑
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| How and where is CR directed for Axiolateral oblique TMJs? | show 🗑
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| show | all 4, particularly sphenoidal
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| Which sinus groups are demonstrated in the PA axial (Caldwell)? | show 🗑
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| show | lacrimal
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| What are the largest immovable facial bones? | show 🗑
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| Which bone contains the infraorbital foramen? | show 🗑
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| Which facial bones are not paired? | show 🗑
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| show | vomer
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| What is the overall largest and densest facial bone? | show 🗑
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| How many cranial and facial bones make up the orbits? | show 🗑
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| Which bones make up the floor of the cranium? | show 🗑
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| What suture is between the temporal and parietal bones? | show 🗑
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| show | lambdoidal
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| show | 47 degrees from MSP, 54 degrees, 40 degrees
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| show | frontal
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| show | ethmoid
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| show | ethmoid
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| Which bone contains the crista galli? | show 🗑
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| Which bone has two lateral masses called labyrinths? What is in them? | show 🗑
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| What bony prominences are used to measure the skull width in order to set a proper technique? | show 🗑
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| show | sphenoid
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| What are the anterior and posterior border of the sella turcica? | show 🗑
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| show | on the sphenoid bone at the top corners of the dorsum sellae
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| What are the 3 paired foramina on the greater wings of the sphenoid bone from lateral to medial? | show 🗑
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| What is another name for the internal and external occipital protuberance? | show 🗑
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| What passes through the foramen magnum? | show 🗑
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| Which bone has a styloid process? | show 🗑
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| Which bone contains the petromastoid portion? | show 🗑
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| What do the articular tubercle and mandibular fossa form? | show 🗑
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| What are the 3 auditory ossicles? | show 🗑
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