HSS 387 Exam 3 Questions With
Complete Solutions
pubic symphysis - ANSWER joint of the pelvic girdle that functions in anterior fusion of
the two pelvic bones; classified as amphiarthroidal joint
sacroiliac joint - ANSWER joint of the pelvic girdle that functions in posterior fusion of
the sacrum and two pelvic bones; classified as a diarthoridal joint
acetabular femoral joint - ANSWER joint of the hip that is formed by the femoral head
inserting into the acetabular socket of the pelvis; it is a multi-axial, enarthroidal joint
iliofemoral ligament - ANSWER prevents hyperextension
pubofemoral ligament - ANSWER limits excessive extension and abduction
teres ligament - ANSWER attaches from deep in the acetabulum to a depression in the
femoral head; slightly limits adduction
ischiofemoral ligament - ANSWER extends from the ischium to the trochanteric fossa of
the femur; limits internal rotation
anterior pelvic rotation - ANSWER accomplished by hip flexion and/or lumbar extension
posterior pelvic rotation - ANSWER accomplished by hip extension and/or lumbar flexion
right lateral pelvic rotation - ANSWER accomplished by right hip abduction, left hip
adduction, and/or left lateral lumbar flexion
left lateral pelvic rotation - ANSWER accomplished by left hip abduction, right hip
adduction, and/or right lumbar lateral flexion
right transverse pelvic rotation - ANSWER accomplished by left hip external rotation,
right hip internal rotation, and/or left lumbar rotation
left transverse pelvic rotation - ANSWER accomplished by right hip external rotation, left
hip internal rotation, and/or right lumbar rotation
action of the iliacus muscle (anterior muscle) - ANSWER -hip flexion
-hip external rotation
-anterior pelvic rotation
-transverse pelvic rotation
, rectus femoris actions (anterior muscle) - ANSWER -hip flexion
-anterior pelvic rotation
-knee extension
Sartorius action (anterior muscle) - ANSWER -hip flexion
-hip abduction
-anterior pelvic rotation
-external rotation of the thigh
-knee flexion
-knee internal rotation (weak)
psoas major and minor action (anterior muscle) - ANSWER -hip flexion
-hip external rotation
-anterior pelvic rotation
-transverse pelvic rotation
-lateral pelvic rotation
-spine flexion
pectineus action (medial muscle) - ANSWER -hip flexion
-hip adduction
-hip external rotation
adductor brevis action (medial muscle) - ANSWER -hip flexion
-hip adduction
-hip external rotation
adductor longus action (medial muscle) - ANSWER -hip adduction
-hip flexion
adductor magnus action (medial muscle) - ANSWER -hip extension
-hip adduction
-hip external rotation
bi-articulate muscles - ANSWER -rectus femoris
Complete Solutions
pubic symphysis - ANSWER joint of the pelvic girdle that functions in anterior fusion of
the two pelvic bones; classified as amphiarthroidal joint
sacroiliac joint - ANSWER joint of the pelvic girdle that functions in posterior fusion of
the sacrum and two pelvic bones; classified as a diarthoridal joint
acetabular femoral joint - ANSWER joint of the hip that is formed by the femoral head
inserting into the acetabular socket of the pelvis; it is a multi-axial, enarthroidal joint
iliofemoral ligament - ANSWER prevents hyperextension
pubofemoral ligament - ANSWER limits excessive extension and abduction
teres ligament - ANSWER attaches from deep in the acetabulum to a depression in the
femoral head; slightly limits adduction
ischiofemoral ligament - ANSWER extends from the ischium to the trochanteric fossa of
the femur; limits internal rotation
anterior pelvic rotation - ANSWER accomplished by hip flexion and/or lumbar extension
posterior pelvic rotation - ANSWER accomplished by hip extension and/or lumbar flexion
right lateral pelvic rotation - ANSWER accomplished by right hip abduction, left hip
adduction, and/or left lateral lumbar flexion
left lateral pelvic rotation - ANSWER accomplished by left hip abduction, right hip
adduction, and/or right lumbar lateral flexion
right transverse pelvic rotation - ANSWER accomplished by left hip external rotation,
right hip internal rotation, and/or left lumbar rotation
left transverse pelvic rotation - ANSWER accomplished by right hip external rotation, left
hip internal rotation, and/or right lumbar rotation
action of the iliacus muscle (anterior muscle) - ANSWER -hip flexion
-hip external rotation
-anterior pelvic rotation
-transverse pelvic rotation
, rectus femoris actions (anterior muscle) - ANSWER -hip flexion
-anterior pelvic rotation
-knee extension
Sartorius action (anterior muscle) - ANSWER -hip flexion
-hip abduction
-anterior pelvic rotation
-external rotation of the thigh
-knee flexion
-knee internal rotation (weak)
psoas major and minor action (anterior muscle) - ANSWER -hip flexion
-hip external rotation
-anterior pelvic rotation
-transverse pelvic rotation
-lateral pelvic rotation
-spine flexion
pectineus action (medial muscle) - ANSWER -hip flexion
-hip adduction
-hip external rotation
adductor brevis action (medial muscle) - ANSWER -hip flexion
-hip adduction
-hip external rotation
adductor longus action (medial muscle) - ANSWER -hip adduction
-hip flexion
adductor magnus action (medial muscle) - ANSWER -hip extension
-hip adduction
-hip external rotation
bi-articulate muscles - ANSWER -rectus femoris
