©SIRJOEL EXAM SOLUTIONS
10/7/2024 11:03AM
USAHS Anatomy LE Test Questions With
Correct Answers
What is Q angle (patellofemoral angle) - answer✔The angle between the quadriceps muscle
(primarily the rectus femoris muscle) and the patella tendon
Male/female differences in Q angle - answer✔The angle tends to be greater in females because
the pelvis is generally wider in women
Normal Q angle - answer✔Knee extension ranges from 13-19 degrees in normal individuals
Genuvarum - answer✔Bowlegged/ problem in which the distal segments are positioned more
medially than normal
Genuvalgum - answer✔knock knees/ problem in which the distal segments are positioned more
laterally than normal. Knees tend to touch while ankles are apart.
Genurecurvatum - answer✔Back knees/ hyperextension, ROM goes beyond 0 degrees extension
During an open chain knee extension what kind of rotation takes place in tibia in relation to
femur? For example, the tibia rotates laterally on the femur. During open chain knee extension,
Femur does not rotate on tibia, but tibia rotates on femur. On the other hand, during closed chain
reaction, the femur rotates on tibial condyle - answer✔Open chain- the knee has a concave on
convex relationship where the concave tibial condyles glide posteriorly with flexion and
anteriorly with extension, while the distal end of the tibia moves in the same direction
Closed chain- the knee has a convex on concave relationship, but is reversed when non weight
bearing
When you come up from sit to standing, what happens at the end of knee extension (now this is
the closed chain reaction). At the end of knee extension, the femur spins (medially or laterally) to
lock into place for optimal standing stability - answer✔When going from sit to stand, the femur
must glide posteriorly on the tibia as it rolls into extension
, ©SIRJOEL EXAM SOLUTIONS
10/7/2024 11:03AM
At the end of knee extension, the femur spins/rotates medially on the tibia
What is the patellofemoral pain syndrome? What are the common causes of the syndrome, some
examples include: - answer✔Patellafemoral pain syndrom: a common problem causing diffuse
anterior knee pain and around the knee cap
Common causes- overuse, improper use of sports equipment, misalignment of patella, muscle
imbalance, and tightness in anatomical structures
Generally considered the result of a variety of alignment factors
Femoral triangle fig 7-11 - answer✔Bordered by the inguinal ligament superiorly, the sartorius
laterally, and adductor longus medially
The femoral artery, vein, nerve, numerous lymph nodes, and terminal portion of great saphenous
vein lie within the triangle
Pectineus and iliopsoas muscle form the floor of the triangle
External iliac artery ------> - answer✔which becomes femoral artery--->
which becomes popliteal artery--->
which becomes anterior/posterior tibial artery--->
which becomes dorsalis pedis artery
Popliteal space and structures - answer✔Popliteal space- the area behind the knee and it contains
important nerves (tibial and common fibularis) and blood vessels (popliteal artery and vein)
Bound superiorly on the medial side by medial hamstrings and lateral hamstrings
Walking up and down stairs and knee flexion requirements - answer✔Visualize 80-110 degrees
(20 degree range)
Femoral nerve vs obturator nerve vs sciatic nerve and the muscle groups that are supplied by
these nerves - answer✔Femoral nerve- 4 quadriceps, iliopsoas, sartorius, pectineus
10/7/2024 11:03AM
USAHS Anatomy LE Test Questions With
Correct Answers
What is Q angle (patellofemoral angle) - answer✔The angle between the quadriceps muscle
(primarily the rectus femoris muscle) and the patella tendon
Male/female differences in Q angle - answer✔The angle tends to be greater in females because
the pelvis is generally wider in women
Normal Q angle - answer✔Knee extension ranges from 13-19 degrees in normal individuals
Genuvarum - answer✔Bowlegged/ problem in which the distal segments are positioned more
medially than normal
Genuvalgum - answer✔knock knees/ problem in which the distal segments are positioned more
laterally than normal. Knees tend to touch while ankles are apart.
Genurecurvatum - answer✔Back knees/ hyperextension, ROM goes beyond 0 degrees extension
During an open chain knee extension what kind of rotation takes place in tibia in relation to
femur? For example, the tibia rotates laterally on the femur. During open chain knee extension,
Femur does not rotate on tibia, but tibia rotates on femur. On the other hand, during closed chain
reaction, the femur rotates on tibial condyle - answer✔Open chain- the knee has a concave on
convex relationship where the concave tibial condyles glide posteriorly with flexion and
anteriorly with extension, while the distal end of the tibia moves in the same direction
Closed chain- the knee has a convex on concave relationship, but is reversed when non weight
bearing
When you come up from sit to standing, what happens at the end of knee extension (now this is
the closed chain reaction). At the end of knee extension, the femur spins (medially or laterally) to
lock into place for optimal standing stability - answer✔When going from sit to stand, the femur
must glide posteriorly on the tibia as it rolls into extension
, ©SIRJOEL EXAM SOLUTIONS
10/7/2024 11:03AM
At the end of knee extension, the femur spins/rotates medially on the tibia
What is the patellofemoral pain syndrome? What are the common causes of the syndrome, some
examples include: - answer✔Patellafemoral pain syndrom: a common problem causing diffuse
anterior knee pain and around the knee cap
Common causes- overuse, improper use of sports equipment, misalignment of patella, muscle
imbalance, and tightness in anatomical structures
Generally considered the result of a variety of alignment factors
Femoral triangle fig 7-11 - answer✔Bordered by the inguinal ligament superiorly, the sartorius
laterally, and adductor longus medially
The femoral artery, vein, nerve, numerous lymph nodes, and terminal portion of great saphenous
vein lie within the triangle
Pectineus and iliopsoas muscle form the floor of the triangle
External iliac artery ------> - answer✔which becomes femoral artery--->
which becomes popliteal artery--->
which becomes anterior/posterior tibial artery--->
which becomes dorsalis pedis artery
Popliteal space and structures - answer✔Popliteal space- the area behind the knee and it contains
important nerves (tibial and common fibularis) and blood vessels (popliteal artery and vein)
Bound superiorly on the medial side by medial hamstrings and lateral hamstrings
Walking up and down stairs and knee flexion requirements - answer✔Visualize 80-110 degrees
(20 degree range)
Femoral nerve vs obturator nerve vs sciatic nerve and the muscle groups that are supplied by
these nerves - answer✔Femoral nerve- 4 quadriceps, iliopsoas, sartorius, pectineus
