JR101FINAL EXAM EXAM LATEST UPDATE 2025 ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT VERIFIED ANSWERS |100%GUARANTEED PASS!!!
The LCL originates at the _________ and inserts on the _____________. - CORRECT ANSWER-
The anterior cruciate ligament in the knee - CORRECT ANSWER-originates on the lateral femoral
condyle and inserts on the anterior surface of the tibial plateau
The medial femoral condyle is _________ and ___________ curved than the lateral condyle. -
CORRECT ANSWER-larger, more
The posterior cruciate ligament is responsible for: - CORRECT ANSWER-restraint to posterior
tibial translation with respect to femur
When we discuss "bone changes in form and function due to mechanical stresses and the force
of muscular tension places on it" we are discussing: - CORRECT ANSWER-Wolff's Law
Anatomical position denotes the patient standing, with
____________________________________________________. - CORRECT ANSWER-arms
extended at the sides/palms facing forward, toes slightly downward
The main blood supply to the lower leg is _______________________. - CORRECT ANSWER-
popliteal artery
How many articulations exist within the knee joint (excluding the fibula)? - CORRECT ANSWER-
three
T/F: the primary function of the quadriceps muscle group is to flex the knee - CORRECT
ANSWER-false
,The flexible connective tissue found on joint surfaces which allows joint surfaces to slide against
one another is called: - CORRECT ANSWER-cartilage
The mechanical axis of the lower extremity is determined by drawing a straight line from: -
CORRECT ANSWER-the center of the femoral head to the center of the ankle joint
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 describes as "active" motion. - CORRECT
ANSWER-false
T/F: the only base plate with which Triathlon TS insert can be used is the cemented universal
base plate. - CORRECT ANSWER-true
T/F: the Tritanium foam thickness on the underside of the Triathlon Tritanium base plate is
1.75mm thick. - CORRECT ANSWER-false
When we refer to the "functional axes" of the knee, we reference the combination of rotations
around what two axes? - CORRECT ANSWER-the transepicondylar axis of the femur combined
with the longitudinal axis of the tibia
T/F: the triathlon TS femoral augments can be used with a triathlon primary PS cemented
femoral component - CORRECT ANSWER-true
As the knee joint moves throughout the functional arc, the motion is controlled by ligaments as
well as the muscles. This motion is categorized as being..... - CORRECT ANSWER-active
If one views the posterior condyles of the knee in sagittal plane through the functional flexion
axis (TEA), the condyles appear ______________ from 10 degrees to 120 degrees. - CORRECT
ANSWER-circular
, T/F: the tibial tubercle is not part of the extensor mechanism. - CORRECT ANSWER-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: - CORRECT
ANSWER-moment arm
The posterior condylar line is: - CORRECT ANSWER-marks the outer surface boundaries of the
posterior distal femoral condyles in flexion
T/F: regardless of tray size; the peg diameter on all Triathlon Tritanium base plates is 7mm .
However the peg lengths range in length from 7mm to 12mm depending on the size of the base
plate. - CORRECT ANSWER-true
T/F: during the screw home arc of motion in the knee, the tibia will internally rotate with
reference to the femur as the knee extends. - CORRECT ANSWER-false
The distal femur and proximal tibia create the __________ of the knee joint. - CORRECT
ANSWER-extension gap
Where is Whitesides line drawn from? - CORRECT ANSWER-a line drawn from the deepest part
of the trochlear groove posteriorly to the center of the intercondylar notch
T/F: with reference to Triathlons femoral component/tibial insert compatibility, TS CEMENTED
femoral component can be used with a PS tibial insert. - CORRECT ANSWER-true
The flexion-extension axis closely corresponds to the insertion points what two ligamentous soft
tissue structures in the knee joint? - CORRECT ANSWER-the MCL and LCL
QUESTIONS AND CORRECT VERIFIED ANSWERS |100%GUARANTEED PASS!!!
The LCL originates at the _________ and inserts on the _____________. - CORRECT ANSWER-
The anterior cruciate ligament in the knee - CORRECT ANSWER-originates on the lateral femoral
condyle and inserts on the anterior surface of the tibial plateau
The medial femoral condyle is _________ and ___________ curved than the lateral condyle. -
CORRECT ANSWER-larger, more
The posterior cruciate ligament is responsible for: - CORRECT ANSWER-restraint to posterior
tibial translation with respect to femur
When we discuss "bone changes in form and function due to mechanical stresses and the force
of muscular tension places on it" we are discussing: - CORRECT ANSWER-Wolff's Law
Anatomical position denotes the patient standing, with
____________________________________________________. - CORRECT ANSWER-arms
extended at the sides/palms facing forward, toes slightly downward
The main blood supply to the lower leg is _______________________. - CORRECT ANSWER-
popliteal artery
How many articulations exist within the knee joint (excluding the fibula)? - CORRECT ANSWER-
three
T/F: the primary function of the quadriceps muscle group is to flex the knee - CORRECT
ANSWER-false
,The flexible connective tissue found on joint surfaces which allows joint surfaces to slide against
one another is called: - CORRECT ANSWER-cartilage
The mechanical axis of the lower extremity is determined by drawing a straight line from: -
CORRECT ANSWER-the center of the femoral head to the center of the ankle joint
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 describes as "active" motion. - CORRECT
ANSWER-false
T/F: the only base plate with which Triathlon TS insert can be used is the cemented universal
base plate. - CORRECT ANSWER-true
T/F: the Tritanium foam thickness on the underside of the Triathlon Tritanium base plate is
1.75mm thick. - CORRECT ANSWER-false
When we refer to the "functional axes" of the knee, we reference the combination of rotations
around what two axes? - CORRECT ANSWER-the transepicondylar axis of the femur combined
with the longitudinal axis of the tibia
T/F: the triathlon TS femoral augments can be used with a triathlon primary PS cemented
femoral component - CORRECT ANSWER-true
As the knee joint moves throughout the functional arc, the motion is controlled by ligaments as
well as the muscles. This motion is categorized as being..... - CORRECT ANSWER-active
If one views the posterior condyles of the knee in sagittal plane through the functional flexion
axis (TEA), the condyles appear ______________ from 10 degrees to 120 degrees. - CORRECT
ANSWER-circular
, T/F: the tibial tubercle is not part of the extensor mechanism. - CORRECT ANSWER-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: - CORRECT
ANSWER-moment arm
The posterior condylar line is: - CORRECT ANSWER-marks the outer surface boundaries of the
posterior distal femoral condyles in flexion
T/F: regardless of tray size; the peg diameter on all Triathlon Tritanium base plates is 7mm .
However the peg lengths range in length from 7mm to 12mm depending on the size of the base
plate. - CORRECT ANSWER-true
T/F: during the screw home arc of motion in the knee, the tibia will internally rotate with
reference to the femur as the knee extends. - CORRECT ANSWER-false
The distal femur and proximal tibia create the __________ of the knee joint. - CORRECT
ANSWER-extension gap
Where is Whitesides line drawn from? - CORRECT ANSWER-a line drawn from the deepest part
of the trochlear groove posteriorly to the center of the intercondylar notch
T/F: with reference to Triathlons femoral component/tibial insert compatibility, TS CEMENTED
femoral component can be used with a PS tibial insert. - CORRECT ANSWER-true
The flexion-extension axis closely corresponds to the insertion points what two ligamentous soft
tissue structures in the knee joint? - CORRECT ANSWER-the MCL and LCL
