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70 Cards in this Set
- Front
- Back
How many cranial bones are there?
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8
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How many facial bones are there?
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14
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What are the calvarium bones?
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Frontal
Right & left parietal Occipital |
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What are the cranial floor bones?
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Right & left temporal
Sphenoid Ethmoid |
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What bone forms the superior part of each orbit?
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Frontal bone
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What are the two parts of the frontal bone?
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Squamous (vertical) portion
Orbital (horizontal) portion |
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What is the glabella?
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Smooth raised prominence between eyebrows
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What is the supraorbital groove?
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Groove above each eyebrow
Corresponts with the floor of the anterior fossa |
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What is the supraorbital margin?
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Superior rim of each orbit
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What is the supraorbital notch?
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Foramen in the SOM that allows the passage of the supraorbital nerve
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Where is the frontal tuberosity?
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On each side of the squamous portion of the frontal bone.
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What separates the orbital plates?
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Ethmoidal notch
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What bones articulate with the frontal bone?
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Left and Right parietal bones
Ethmoid bone Sphenoid bone |
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What bones do the parietal bones articulate with?
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Frontal bone
Occipital bone Temporal bone Sphenoid bone Opposite parietal bone |
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The rounded portion of the occipital bone is called the:
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Squamous portion
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What is the large opening at the base of the occipital bone called?
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Foramen magnum
Spinal cord passes through it |
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What do the occipital condyles do?
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Articulate with the atlas
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What bones articulate with the occipital bone?
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Right & left parietal bones
Right & left temporal bones Sphenoid Atlas |
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What is the styloid process?
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Slender bony projection of the temporal bone projection posteriorly to the mandible, but anterior to the exterior auditory meatus
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What are the 3 primary parts of the temporal bone?
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Squamous portion - upper part, forms part of the skull
Mastoid portion - posterior to EAM, air cells Petrous portion - houses organs of hearing & ballance |
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What landmark represents the highest level of the facial bone mass?
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Orbital plates
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The widest portion of the cranium is found at the level of the:
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Parietal tubercles
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What is the name of the joint formed between lateral condylar process of the skull and the superior articular process of C1?
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Atlanto-occipital joint
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What cranial bone articulates with all other cranial bones?
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Sphenoid
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The slight depression above each eyebrow is called the:
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Supraorbital groove
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The left mastoid fontanel become what structure in the adult?
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Left asterion
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How many fontanels are in the infant
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6
Anterior Posterior Left & right sphenoid Left & right mastoid |
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What external landmark corresponds with the petrous ridge?
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Top of the ear attachment (TEA)
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The pituitary gland (hypophysis) is protected by which cranial bone?
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Sphenoid
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The cribiform plate is found in which cranial bone?
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Ethmoid
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Which suture separates the parietal from the occipital bone?
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Lamboidal
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Which suture separates the parietal from the temporal bone?
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Squamosal
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What structure in the adult corresponds to the anterior fontanel in the neonate?
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Bregma
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Small irregular bones found in the sutures are called:
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Wormian bones
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The ethmoid notch is part of which bone?
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Frontal
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Which fontanel is the last to close in the child?
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Anterior
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Which of the following is NOT a facial bone?
A. Middle nasal conchae B. Vomer C. Lacrimal bone D. Mandible |
Middle nasal conchae
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What is the largest immovable bone of the face?
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Maxilla
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Name the 4 processes of the maxilla:
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Frontal
Zygomatic Palatine Alveolar |
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What tissue landmark is found at the base of the anterior nasal spine?
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Acanthion
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What is the name of the frontal point of the nasofrontal suture?
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Nasion
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Which facial bones form the posterior aspect of the hard palate?
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Palatine bones
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Which two facial bones articulate with the maxilla?
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Frontal
Ethmoid |
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Which of the following does NOT articulate with the zygomatic bone?
A. Temporal B. Maxilla C. Frontal D. Sphenoid |
Sphenoid
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Which facial bone is associated with the tear ducts?
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Lacrimal
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Another name for the nasal conchae is the:
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Nasal turbinates
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(T/F)
The majority of the nose is made up of the nasal bones? |
False
Most is cartilage |
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A deviated nasal septum is most likely to occur at the junction of:
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Nasal cartilage and vomer
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The drainage pathway for the paranasal sinuses is called:
A. Uncinate process B. Ostiomeatal complex C. Paranasal meatus D. Lateral masses |
Ostiomeatal complex
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The small cartilagenous flap covering the ear opening is called the:
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Tragus
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What line is used in positioning to ensure that the skull is in a true lateral position?
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Interpupillary line
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The lateral junction of the eyelid is called the:
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Outer canthus
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What landmark corresponds to the highest level of the facial bone mass?
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Supraorbital groove
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What is the aurcular point?
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Center point of the EAM
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What is the name of the line connecting the midlateral orbital margin and the EAM?
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OML
(Orbitomeatal line) |
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What is the name of the fracture that commonly presents as an air-fluid level in the sphenoid sinus?
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Basal skull fracture
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What type of tumor may produce erosion of the sella turcica
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Pituitary adenoma
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What disease is also known as osteitis deformans
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Paget's disease
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What bone tumor originates in the bone marrow?
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Multiple myeloma
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What is another name of a 'ping-pong' fracture?
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Depressed skull fracture
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Which cranial bone is best demonstrated with an AP axial (Towne method) projection of the skull?
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Occipital
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Which clinical indication may require an increase in manual exposure factors?
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Paget's disease
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Which imaging modality is most commonly performed to evaluate patients with Alzeheimer's disease?
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NM
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Which imaging modality is most commonly performed to evaluate a neonate with possible intracranial hemorrhage?
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US
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When using the Towne method, which positioning line should be perpendicular to the image receptor?
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OML
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A properly positioned Towne method projection should place the dorsum sellae into the middel aspect of the:
A. Orbits B. Clivus C. Foramen Magnum D. Anterior arch of C1 |
Foramen magnum
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A lack of symmetry of the petrous ridges indicates which of the following problems with an AP axial projection?
A. Tilt B. Central ray angle C. Flexion or extension D. Rotation |
Rotation
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What evidence on the Towne method projection indicates whether the correct CR angle and correct head flexion were used?
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Dorsum sellae and posterior clinoids should be projected into the foramen magnum
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What CR angle should be used for the PA axial (Haas method) projection?
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25 degrees cephalad
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Where will the petrous ridges be projected with a Caldwell projection?
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Lower one-third of the orbits
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