JR 101 UPDATED LATEST ANSWERS AND
QUESTIONS SET A+
✔✔t/f: since the knee joint requires little assistance from the muscles as it moves
through the screw home arc of motion, the resultant motion is described as "active
motion" - ✔✔false
✔✔as the knee joint moves throughout the functional arc, the motion is controlled by
ligaments as well as muscles. this motion is categorized as being - ✔✔active
✔✔t/f: as the knee flexes throughout the functional arc of motion as we walk, and the
tibia is lifted off the ground, the femur externally rotates with reference to the tibia -
✔✔true
✔✔if one views the posterior condyles of the knee in the sagittal plane through the
functional flexion axis (TEA) the condylar appear (blank) from 10 degrees to 120
degrees - ✔✔circular
✔✔is the deep flexion arc of motion active or passive - ✔✔passive
✔✔the most important biomechanical function of the patella is to improve -
✔✔quadricep efficiency
✔✔t/f: the patella decreases the lever arm of the extensor mechanism - ✔✔false
✔✔t/f: the tibia tubercle is not part of the extensor mechanism - ✔✔false
✔✔in the human knee joint, the distance (in the sagittal plane) between the quadriceps
force in the knee joint and the flexion extension axis of the knee can be referred to as
being a: - ✔✔moment arm
✔✔t/f: triathlon CS tibial inserts are available in six thicknesses; they match the six
thicknesses option that are available for the CR tibial insert - ✔✔false
,✔✔when referring to a CS tibial liner in the Triathlon knee system, the letter C-S stands
for "cruciate sacrificing" - ✔✔false
✔✔t/F: triathlon TS tibial inserts offer three more thickness options than the PS design
does - ✔✔true
✔✔t/F:triathlon offers cemented CR+PS femoral components. there is also a
cementless CR PA components but there is not cemenltess PS femoral component -
✔✔false
✔✔t/f: on any triathlon PS femoral component, the outer width of the PS box is 20.8mm
- ✔✔true
✔✔on any triathlon PS femoral component. the PS box height is 20.5mm - ✔✔true
✔✔on any triathlon PS femoral component, the PS box inner width is 16.2mm - ✔✔true
✔✔t/f: triathlon TS femoral augments can be used with a triathlon primary ps cemented
femoral component - ✔✔true
✔✔t/F: triathlon tibial augments are size specific and come in left medial/right lateral or
right medial/left lateral configurations and can only be used with the universal baseplate
- ✔✔true
✔✔t/f: with respect to triathlon's femoral component/tibial insert baseplate compatibility,
the size matching is one up, one down. a size #5 femur can be matched with an
appropriate size 4,5,6 insert/baseplate - ✔✔true
✔✔t/f: the only baseplate with which the triathlon TS insert can be used is the cemented
universal baseplate - ✔✔true
✔✔t/f: with reference to triathlon's femoral component/tibial insert compatibility, a
cemented PS component can be used with a TS insert (with universal baseplate) -
✔✔true
✔✔t/f: on triathlon primary CR/PS femoral components, the anterior dimension
increases less than or equal to 3.0mm from size #1 through and including #7 - ✔✔true
✔✔t/F: the triathlon primary cemented baseplate/universal, baseplate/low profile,
baseplate has an overall thickness of 3.2mm - ✔✔true
, ✔✔t/f: the triathlon primary cemented baseplate/universal, baseplate/low profile,
baseplate have an inner baseplate thickness of 2.4mm - ✔✔false
✔✔t/F: the cement mantle under the triathlon primary cemented baseplate universal
baseplate low profile baseplate is 1.3mm - ✔✔true
✔✔the posterior condylar line: - ✔✔marks the outer surface boundaries of the posterior
distal femoral condyles in flexion
✔✔t/f: the anatomic axes in the lower extremity are represented by two mutually
exclusive lines: - ✔✔true
✔✔t/F: the setting time of simplex P bone cement can vary with the ambient
temperature in the operating room which, by definition does not include the temperature
of the utensils, mixing and delivery equipment and the cement itself - ✔✔false
✔✔which of the muscles listed below is not a gluteal muscle? - ✔✔gluteus magnus
✔✔the skeletal combination of a right hip bone and a left hip bone forms an anatomical
structure referred to as the: - ✔✔pelvic girdle
✔✔t/F: although its fumes are not pleasant to inhale, the monomer utilized in making
simplex P bone cement is expressly engineered to be non-flammable - ✔✔false
✔✔iliotibial band originates from the iliac crest of the hip bone and inserts onto the: -
✔✔lateral condyle of the tibia (on the gerdy's tubercle)
✔✔t/f: when preparing a dose of simplex p bone cement for surgical use, the liquid
monomer component should be the initial ingredient placed in the mixing receptacle -
✔✔false
✔✔how many product offerings (individual brands) are available in the simplex P family
of bone cements - ✔✔5
✔✔T/F Simplex Bone Cement monomer and polymer/co-polymer powder (regardless of
brand) are packaged in two sterile components; a sterile plastic pouch for the liquid
monomer and a sterile glass ampule for the polymer/co-polymer powder since the
powder is so sensitive to heat and light. - ✔✔false
✔✔a large foramen that is created in the skeleton when the ischial and pubic rami are
joined is called the: - ✔✔obturator foramen
QUESTIONS SET A+
✔✔t/f: since the knee joint requires little assistance from the muscles as it moves
through the screw home arc of motion, the resultant motion is described as "active
motion" - ✔✔false
✔✔as the knee joint moves throughout the functional arc, the motion is controlled by
ligaments as well as muscles. this motion is categorized as being - ✔✔active
✔✔t/f: as the knee flexes throughout the functional arc of motion as we walk, and the
tibia is lifted off the ground, the femur externally rotates with reference to the tibia -
✔✔true
✔✔if one views the posterior condyles of the knee in the sagittal plane through the
functional flexion axis (TEA) the condylar appear (blank) from 10 degrees to 120
degrees - ✔✔circular
✔✔is the deep flexion arc of motion active or passive - ✔✔passive
✔✔the most important biomechanical function of the patella is to improve -
✔✔quadricep efficiency
✔✔t/f: the patella decreases the lever arm of the extensor mechanism - ✔✔false
✔✔t/f: the tibia tubercle is not part of the extensor mechanism - ✔✔false
✔✔in the human knee joint, the distance (in the sagittal plane) between the quadriceps
force in the knee joint and the flexion extension axis of the knee can be referred to as
being a: - ✔✔moment arm
✔✔t/f: triathlon CS tibial inserts are available in six thicknesses; they match the six
thicknesses option that are available for the CR tibial insert - ✔✔false
,✔✔when referring to a CS tibial liner in the Triathlon knee system, the letter C-S stands
for "cruciate sacrificing" - ✔✔false
✔✔t/F: triathlon TS tibial inserts offer three more thickness options than the PS design
does - ✔✔true
✔✔t/F:triathlon offers cemented CR+PS femoral components. there is also a
cementless CR PA components but there is not cemenltess PS femoral component -
✔✔false
✔✔t/f: on any triathlon PS femoral component, the outer width of the PS box is 20.8mm
- ✔✔true
✔✔on any triathlon PS femoral component. the PS box height is 20.5mm - ✔✔true
✔✔on any triathlon PS femoral component, the PS box inner width is 16.2mm - ✔✔true
✔✔t/f: triathlon TS femoral augments can be used with a triathlon primary ps cemented
femoral component - ✔✔true
✔✔t/F: triathlon tibial augments are size specific and come in left medial/right lateral or
right medial/left lateral configurations and can only be used with the universal baseplate
- ✔✔true
✔✔t/f: with respect to triathlon's femoral component/tibial insert baseplate compatibility,
the size matching is one up, one down. a size #5 femur can be matched with an
appropriate size 4,5,6 insert/baseplate - ✔✔true
✔✔t/f: the only baseplate with which the triathlon TS insert can be used is the cemented
universal baseplate - ✔✔true
✔✔t/f: with reference to triathlon's femoral component/tibial insert compatibility, a
cemented PS component can be used with a TS insert (with universal baseplate) -
✔✔true
✔✔t/f: on triathlon primary CR/PS femoral components, the anterior dimension
increases less than or equal to 3.0mm from size #1 through and including #7 - ✔✔true
✔✔t/F: the triathlon primary cemented baseplate/universal, baseplate/low profile,
baseplate has an overall thickness of 3.2mm - ✔✔true
, ✔✔t/f: the triathlon primary cemented baseplate/universal, baseplate/low profile,
baseplate have an inner baseplate thickness of 2.4mm - ✔✔false
✔✔t/F: the cement mantle under the triathlon primary cemented baseplate universal
baseplate low profile baseplate is 1.3mm - ✔✔true
✔✔the posterior condylar line: - ✔✔marks the outer surface boundaries of the posterior
distal femoral condyles in flexion
✔✔t/f: the anatomic axes in the lower extremity are represented by two mutually
exclusive lines: - ✔✔true
✔✔t/F: the setting time of simplex P bone cement can vary with the ambient
temperature in the operating room which, by definition does not include the temperature
of the utensils, mixing and delivery equipment and the cement itself - ✔✔false
✔✔which of the muscles listed below is not a gluteal muscle? - ✔✔gluteus magnus
✔✔the skeletal combination of a right hip bone and a left hip bone forms an anatomical
structure referred to as the: - ✔✔pelvic girdle
✔✔t/F: although its fumes are not pleasant to inhale, the monomer utilized in making
simplex P bone cement is expressly engineered to be non-flammable - ✔✔false
✔✔iliotibial band originates from the iliac crest of the hip bone and inserts onto the: -
✔✔lateral condyle of the tibia (on the gerdy's tubercle)
✔✔t/f: when preparing a dose of simplex p bone cement for surgical use, the liquid
monomer component should be the initial ingredient placed in the mixing receptacle -
✔✔false
✔✔how many product offerings (individual brands) are available in the simplex P family
of bone cements - ✔✔5
✔✔T/F Simplex Bone Cement monomer and polymer/co-polymer powder (regardless of
brand) are packaged in two sterile components; a sterile plastic pouch for the liquid
monomer and a sterile glass ampule for the polymer/co-polymer powder since the
powder is so sensitive to heat and light. - ✔✔false
✔✔a large foramen that is created in the skeleton when the ischial and pubic rami are
joined is called the: - ✔✔obturator foramen
