RAD 105 EXAM 2 2025

How many bones are in the skull - Correct Answer-22 How many cranial bones - Correct Answer-8 how many facial bones - Correct Answer-14 what are the cranial bones - Correct Answer-frontal parietal occipital temporal ethmoid sphenoid narrow space between the inner and outer plates and contains the cancellous spongy bone - Correct Answer-diploe a smooth raised prominence between the eyebrows above the bridge of the nose - Correct Answer-glabella large opening at the base of the skull where the spinal cord passes - Correct Answer foramen magnum central depression on the body of the sphenoid. Means "turkish saddle" - Correct Answer-sella turcica what is known as the back of the saddle - Correct Answer-dorsum sellae what are the 3 pairs of foramina - Correct Answer-rotundum ovale spinosum what are the 3 bones on the rim of each orbit - Correct Answer-frontal maxilla zygoma what are the 3 cranial bones that help form each orbital cavity - Correct Answer-frontal ethmoid sphenoid what are the 4 facial bones that help form each orbital cavity - Correct Answer-zygoma maxilla RAD105 RAD105 lacrimal palatine what are the 3 openings in each posterior orbit that provide passage of cranial nerves - Correct Answer-optic foramen superior orbital fissure inferior orbital fissure when do sutures completely ossify - Correct Answer-mid to late 20s which bone has the sella tucica (saddle) - Correct Answer-sphenoid bone where is the sella turcica located in reference to the dorsum? - Correct Answer-anterior there are _____ pairs and _____ single cranial bones - Correct Answer-2 pairs and 4 single in the PA Axial Caldwell skull, the petrous ridges are projected where? - Correct Answer-in the lower 1/3 of the orbits what is the CR for the PA Axial Caldwell skull - Correct Answer-directed 15 degrees caudad through the nasion the anatomy demonstrated for what routine includes: entire cranium visualized & superimposed sella turcica anterior & posterior clinoid processes & dorsum sellae - Correct Answer-lateral skull what is the CR for Lateral Skull - Correct Answer-perpendicular and directed 2inches superior to EAM the anatomy demonstrated for what view includes: occipital bone, petrous pyramids, foramen magnum, and posterior clinoids visualized in the shadow of foramen magnum - Correct Answer-AP Axial Towne the anatomy demonstrated for what view includes: all four paranasal sinus groups are shown - Correct Answer-lateral sinus what is the CR for Facial Bones Waters - Correct Answer-perpendicular directed to exit acanthion what view is the evaluation criteria: correct neck extension demonstrated petrous ridges just inferior to maxillary sinuses - Correct Answer-Parietocanthial Facial Bones (waters) what is the CR for Lateral Facial Bones - Correct Answer-perpendicular & directed half way between outer canthus and EAM RAD105 RAD105 what is the CR for PA Axial Facial (Caldwell) - Correct Answer-angled 15 degrees caudad to exit at nasion what is the part position for PA Axial Facial (Caldwell) - Correct Answer-OML perpendicular to IR what is the collimation for Lateral Nasal Bone - Correct Answer-4x4 what is the CR for Lateral Nasal Bone - Correct Answer-perpendicular and directed 1/2 inch inferior to nasion what is the part position to PA Mandible - Correct Answer-OML perpendicular to IR what is the CR for Axiolateral OBL Mandible - Correct Answer-angled 25 degrees & directed to elevated mandibular angle what view's evaluation criteria involves the ramus & body demonstrated with no superimposition and non of the cervical spine by the ramus - Correct Answer-Axiolateral OBL Mandible the anatomy demonstrated for what view involves the rami, condylar and coronoid processes, body and mentum of mandible nearest to IR - Correct Answer-Axiolateral OBL mandible what is another name for Axiolateral Open/closed TMJ view - Correct Answer-Schuller method what is the part position for a closed TMJ (schuller method) - Correct Answer-head true lat what is the CR for a TMJ Schuller Method view - Correct Answer-angles 25-30 degree caudad & directed 1/2" anterior & 2" superior to EAM what is the part center to IR for TMJ Schuller Method - Correct Answer-IOML perpendicular to front edge of IR for a Submentovertex (SMV) view, what is the cassette size - Correct Answer-8 x 10 CW B what is the CR for Submentovertex (SMV) - Correct Answer-perpendicular to IR & midway between zygomatic arches directed 1 -1/2" inferior to mandibular symphysis the anatomy demonstrated in what view shows bilateral zygomatic arches free from superimposition - Correct Answer-Submentovertex (SMV) RAD105 RAD105 what is the cassette size for Oblique Inferiorsuperior (Tangential) view - Correct Answer-8 x 10 LW B what is the part position for Oblique Inferiorsuperior (Tangential) view - Correct Answer IOML is parellel to IR what is the part center to IR for Oblique Inferiorsuperior (Tangential) view - Correct Answer-rotate head 15 degrees toward side to be examined & tilt chin 15 degrees toward side of interest what is the cassette size for Parieto orbital oblique (Rhese) view - Correct Answer-8 x 10 CW B what view is the part position zygoma, nose, and chin touching table to align MSP 53 degree to IR - Correct Answer-Orbital oblique (Rhese) what is the part center to IR for Orbital oblique (Rhese) - Correct Answer-AML perpendicular to IR what is the CR for Orbital oblique (Rhese) - Correct Answer-perpendicular and directed 1" superior and 1" posterior of TEA for the evaluation criteria for Orbital Oblique, the optic foramen projected into the ________ outer quadrant of the orbit - Correct Answer-lower which cranial bones have pairs - Correct Answer-parietal and temporal what sinus is the largest - Correct Answer-maxillary what sinus develops last - Correct Answer-ethmoid the mandible angle is called - Correct Answer-gonion what is the largest immovable bone in the face - Correct Answer-maxilla this suture separates the two parietal bones in the midline - Correct Answer-sagittal what houses the organs of hearing and equilibrium - Correct Answer-petrous portion pyramid shaped portion is the thickest and densest bone of the cranium - Correct Answer-petrous portion widest portion of the entire skull - Correct Answer-Parietal tubercles (eminences) the ethmoid notch is located on what bone - Correct Answer-frontal RAD105 RAD105 the floor base of the skull consist of - Correct Answer-sphenoid, ethmoid and R/L temporal the calvarium skull cap consist of - Correct Answer-frontal, occipital, and R/L parietal this bone is centrally located and forms the anchor for all cranial bones - Correct Answer-sphenoid form anterior portion of the roof of the mouth known as the hard bony palate - Correct Answer-palatine process centrally located forms the anchor for all eight cranial bones - Correct Answer-sphenoid bone smooth raised prominence between the eyebrows and important radiographic positioning landmark - Correct Answer-glabella the sutures (joints) of the adult cranium - Correct Answer-coronal sagittal lambdoidal squamosal the junctions of the adult cranium - Correct Answer-bregma lambda pterion (R/L) asterions (R/L) what cranium suture separates the two parietal bones from occipital bone. The back suture - Correct Answer-lambdoidal suture what cranium suture separates the parietal bones from their respective temporal bones. the side suture - Correct Answer-squamosal suture what cranium junction is the anterior end of the sagittal suture - Correct Answer-bregma junction the anterior fontanel does not completely close until what age - Correct Answer-18 months age what fontanel is largest at birth - Correct Answer-anterior fontanel the temporal bones are divided into 3 primary portions - Correct Answer-squamo