Lower Limb Flashcards
What are the 6 muscles of medial compartment of the tight?
Gracilis, 3 adductor muscles, obturator externus and pectineus.
What nerves innervate the medial compartment of the tight?
Obturator nerve, femoral nerve (pectineus) and sciatic nerve (hamstring part of adductor magnus)
Pectineus innervation and action?
Femoral nerve, adduction and flexion (hip joint).
Adductor Magnus innervation?
Obturator nerve L2-4( adductor part) and tibial branch of sciatic nerve (hamstring part) L4-S3.
What muscles of the medial compartment of tight adducttion and flexion at hip/knee joint?
Gracilis (knee joint) and pectineus (hip joint).
What muscles of the medial compartment of tight adduct and medially rotate?
Adductor longus, brevis and Magnus.
What muscle of the medial compartment of thigh gives lateral rotation
Obturator externus
Pectineus origin and insertion
Pectineus line of the superior pubic ramus to lesse trochanter and Linea aspera (posterior surface of femur).
Gracilis is the most medial and superficial of the medial compartment, origin and insertion?
Anterior surface of the body of the pubis to proximal tibia
Adductor longus origin and insertion
Anterior surface of the body of the pubis (alongside Gracilis) to linea aspera. It is the most anterior adductor
Adductor brevis origin and insertion
Body of the pubis to linea aspera
Adductor Magnus origin and insertion
Inferior surface of inferior pubic ramus to posterior surface of femur, linea aspera (adductor part) and ischial tuberosity to adductor tubercle (hamstring part).
Obturator externus origin and insertion
External surface of the obturator membrane and adjacent bone to inter trochanteric fossa.
What structures does the obturator nerve innervates?
Muscles of medial compartment of tight- adductors, Gracilis, obturator externus and skin on medial aspect of the tight.
Femoral triangle contents
Lymphatic structures, femoral artery, profunda femoris artery, femoral vein, profunda femoris vein and femoral nerve.
What are the boundaries of the femoral triangle
Inguinal ligament, medial border of adductor longus (medial border), medial border of sartorius (lateral border).
Floor of femoral triangle
PECTINEUS, ADDUCTOR LONGUS and ileopsoas (?)
Behind what muscle do femoral vein and artery descend?
Sartorius (and vastus med?)
Between which muscles femoral artery and vein descend after sartorius?
Behind vastus muscles and on the surface of adductor longus muscle.
What structures pass through the adductor hiatus?
Femoral vein and artery.
What are the muscles of the anterior compartment of the tight? (7)
Psoas major, Illiacus, 3xVastus muscles (intermedium’s medialis and lateralis), recuts femoris, sartorius.
What nerve innervates the muscles of the anterior compartment of tight?
Femoral nerve and anterior rami L1-3 spinal nerves (psoas major)
What 2 muscles of the anterior compartment of tight flex the hip?
Psoas major and illiacus (also recuts femoris and sartorius)
What muscles of the anterior tigh compartment are knee extensors ?
Vastus medialis, intermedium’s and lateralis (and also recuts femoris)
Recuts femoris action
Hip flexion and knee extension
Sartorius action
Hip flexion, knee FLEXION, lateral rotation of hip
Psoas major origin and insertion
TRANSVERSE PROCESSES, VERTEBRAL BODIES OF THE LUMBAR VERTEBRAE, LATERAL ASPECT OF INTERVERTEBRAL DISCS to lesser trochanter of the femur
Iliacus muscle origin and insertion
Inner aspect of the wing of the ilium to lesser trochanter of the femur.
Where does the Iliopsoas travel?
Pass over the superior ramus of the pubic bone, underneath pubic ligament, travel in inguinal canal then inferiorly and backwards to the insertion.
Rectus femoris origin and insertion.
Anterior-inferior iliac spine and ridge above acetabulum to tibial tuberosity (quadriceps tendon)
Recuts femoris action and innervation
Femoral nerve, flexion of hip and extension of knee
Sartorius origin and insertion
Anterior superior iliac spine to medial side of tibia.
Most superficial muscle of the thigh, travels in spiral fashion
Vastus intermedium’s origin and insertion? (Deepest of vastus muscles)
Anterior and lateral parts of proximal femur to tibial tuberosity (via quadriceps tendon)
Vastus medialis origin and insertion
Medial side of linea aspera in the posterior femur and below the lesser trochanter to tibial tuberosity (via quadriceps tendon)
Vastus lateralis origin and insertion
Lateral side of linea aspera and just below greater trochanter to tibial tuberosity (via quadriceps tendon)