PAS 407- Block 2 UPDATED ACTUAL Questions and CORRECT Answers
Gluteus maximus insertion gluteal tuberosity and ITB
forceful extension, lateral rotation of thigh (sit-to-stand,
Gluteus maximus action
climbing stairs)
Gluteus maximus innervation and vascular supply inferior gluteal nerve and superior/inferior gluteal vessels
Gluteus medius insertion posterior aspect of greater trochanter
Gluteus medius action abduction, medial rotation of hip
Gluteus medius innervation and vascular supply innervated by superior gluteal vessels/nerve
Gluteus minimus insertion inserts on anterior aspect of greater trochanter
Gluteus minimus action abduction, medial rotation of hip
Gluteus minimus innervated and vascular supply superior gluteal vessels/nerve
pulls the fascia of the anterior compartment taught, as-
Tensor fascia lata action and innervation
sisting with flexion of thigh; superior gluteal artery/nerve
inserts on greater trochanter; superior gluteal neurovas-
Piriformis insertion cular bundle projects above; inferior gluteal neurovascular
bundle and sciatic nerve projects below.
inserts on trochanteric fossa; innervated by nerve to obtu-
Obturator internus insertion and innervation
rator internus
originates off ischial spine/tuberosity to insert on obtura-
Superior/Inferior Gemellis inserts
tor internus muscle
Superior innervated by nerve to obturator internus; Infe-
Superior/Inferior Gemellis innervation
rior innervated by nerve to quadratus femoris
inserts of quadrate tubercle between greater, lesser
Quadratus Femoris insertion and innervation
trochanters; innervated by nerve to quadratus femoris
Deep muscular compartment of gluteal region ACTION
Principally involved in lateral rotation and stabilization of
(piriformis, obturator internus, superior/inferior gemellis,
hip joint
quadratus femoris)
, Rectus femoris action Hip flexion, knee extension
originates off gluteal tuberosity, lateral lip of linea aspera
Vastus lateralis origin and insertion
Inserts on patella
Vastus medialis origin and insertion originates off medial lip of linea aspera, attaches to patella
specific reference to most inferior part of vastus medialis--
line of. pull of the quadriceps pulls patella laterally, this
Vastus medialis obliquus (VMO)
is countered by VMO fibers; weak VMO is associated with
poor patellar tracking and lateral dislocation
originates off anterior surface of femur; lies deep to rectus
Vastus intermedius origin
femoris belly
originates off anterior superior iliac spine, curves medially
sartorius origin
to cross posterior to knee joint
inserts on anteromedial aspect of the tibia at the pes
sartorius insertion
anserinus
"cross-legged muscle", flexes, abducts, laterally rotates
Sartorius action
hip, flexes the knee
Iliopsoas action principle flexor of the thigh
dual innervation from femoral and obturator nerves; "Hy-
Pectineus innervation
brid" muscle of anterior/medial compartments
Pectineus action adducts, flexes, medially rotates hip
Innervation/Vascular supply of muscles of anterior com-
femoral nerve and femoral/profunda artery
partment of thigh
Obturator externus action lateral rotator, stabilizer of thigh
Innervation/action of Medial compartment of thigh innervated by obturator nerve; hip adductors
2 regions
Adductor magnus action Adductor portion-innervation/action of medial compart-
ment
2/6
Gluteus maximus insertion gluteal tuberosity and ITB
forceful extension, lateral rotation of thigh (sit-to-stand,
Gluteus maximus action
climbing stairs)
Gluteus maximus innervation and vascular supply inferior gluteal nerve and superior/inferior gluteal vessels
Gluteus medius insertion posterior aspect of greater trochanter
Gluteus medius action abduction, medial rotation of hip
Gluteus medius innervation and vascular supply innervated by superior gluteal vessels/nerve
Gluteus minimus insertion inserts on anterior aspect of greater trochanter
Gluteus minimus action abduction, medial rotation of hip
Gluteus minimus innervated and vascular supply superior gluteal vessels/nerve
pulls the fascia of the anterior compartment taught, as-
Tensor fascia lata action and innervation
sisting with flexion of thigh; superior gluteal artery/nerve
inserts on greater trochanter; superior gluteal neurovas-
Piriformis insertion cular bundle projects above; inferior gluteal neurovascular
bundle and sciatic nerve projects below.
inserts on trochanteric fossa; innervated by nerve to obtu-
Obturator internus insertion and innervation
rator internus
originates off ischial spine/tuberosity to insert on obtura-
Superior/Inferior Gemellis inserts
tor internus muscle
Superior innervated by nerve to obturator internus; Infe-
Superior/Inferior Gemellis innervation
rior innervated by nerve to quadratus femoris
inserts of quadrate tubercle between greater, lesser
Quadratus Femoris insertion and innervation
trochanters; innervated by nerve to quadratus femoris
Deep muscular compartment of gluteal region ACTION
Principally involved in lateral rotation and stabilization of
(piriformis, obturator internus, superior/inferior gemellis,
hip joint
quadratus femoris)
, Rectus femoris action Hip flexion, knee extension
originates off gluteal tuberosity, lateral lip of linea aspera
Vastus lateralis origin and insertion
Inserts on patella
Vastus medialis origin and insertion originates off medial lip of linea aspera, attaches to patella
specific reference to most inferior part of vastus medialis--
line of. pull of the quadriceps pulls patella laterally, this
Vastus medialis obliquus (VMO)
is countered by VMO fibers; weak VMO is associated with
poor patellar tracking and lateral dislocation
originates off anterior surface of femur; lies deep to rectus
Vastus intermedius origin
femoris belly
originates off anterior superior iliac spine, curves medially
sartorius origin
to cross posterior to knee joint
inserts on anteromedial aspect of the tibia at the pes
sartorius insertion
anserinus
"cross-legged muscle", flexes, abducts, laterally rotates
Sartorius action
hip, flexes the knee
Iliopsoas action principle flexor of the thigh
dual innervation from femoral and obturator nerves; "Hy-
Pectineus innervation
brid" muscle of anterior/medial compartments
Pectineus action adducts, flexes, medially rotates hip
Innervation/Vascular supply of muscles of anterior com-
femoral nerve and femoral/profunda artery
partment of thigh
Obturator externus action lateral rotator, stabilizer of thigh
Innervation/action of Medial compartment of thigh innervated by obturator nerve; hip adductors
2 regions
Adductor magnus action Adductor portion-innervation/action of medial compart-
ment
2/6
