Muscles Flashcards
Quadriceps Femoris Group
Rectus Femoris, Vastus medialis, Vastus lateralis,Vastus intermedialis
EXTEND the knee (tibofemoral joint)
Action of ALL of the quadriceps Femoris group
Flex the hip (coxal joint)
Rectus Femoris action:
Anterior inferior Iliac spine (AIIS) (FRONT!)
Rectus Femoris Origin
Medial lip of linea aspera
Vastus Medialis Origin
Lateral lip of linea aspera,gluteal tuberosity and greater trochanter
Origin Vastus lateralis
Anterior and lateral shaft of the femur
Vastus intermedius orgin
Tibial tuberosity (via the patella and patellar ligament (back of knee)
Vastus intermedius insertion
Hamstrings include (back)
Biceps Femoris,semtendinous,semiememnranous
Flex the knee (tibofemoral joint)
Action biceps Femoris,semitendonous,semibranous
Insertion head of fibula
Biceps Femoris
Laterally rotates the flexed knee
Biceps Femoris
Medically rotates the flexed knee
Semtendinous and semibranous
Extend the hip (action)
Biceps Femoris,semitendonous and semiememnranous
Long head: ischial tuberosity
Biceps Femoris and semembranous orgin
Proximal,medial shaft of the tibia at pea ansernius tendon
Semitendonous insertion
- EXTEND the hip
- LATERALLY rotate the hip
- ABDUCT the hip
Action gluteus MAXIMUS
Coccyx edge of sacrum,posterior iliac crest,sacrotuberous and sacroiliac ligaments
Orgin gluteus Maximus
Illiotibial tract (upper fibers) and gluteal tuberosity (lower fibers)
Gluteus Maximus insertion
-ABDUCT the hip
-FLEX the hip
-MEDIALLY rotate the hip (anterior fibers)
-EXTEND the hip
- LATERALLY rotate the hip
(Posterior fibers)
Action gluteus MEDIUS
Gluteal surface of illum
Gluteus MEDIUS orgin
Lateral aspect of greater trochanter
Gluteus MEDIUS
- ABDUCT the hip
- MEDIALLY rotate the hip
- FLEX the hip
Gluteus MINIMUS
Gluteal surface of the ilium
Gluteus MINIMUS orgin
Anterior aspect of greater trochanter
Gluteus MINIMUS insertion
Adductor group
Adductor Magnus Adductor longus Adductor Brevis Pectineus Gracilis
- ABDUCT the hip
- MEDIALLY rotate the hip
Action of ALL The ADDUCTOR group
- FLEX the hip
- MEDIALLY rotate the hip
- ABDUCT the hip
Action Tensor Facsciae Latae and iliotibial tract
Iliad crest,posterior to the ASIS
Tensor fasciae Latae and iliotibial tract orgin
Iliotibial tract
Tensor fasciae Latae and illitibial tract insertion
Tilt pelvis anteriorly (back)
Psoas Major action
-FLEX the hip
With insertion fixed:
- FLEX the trunk toward the thigh
- tilt pelvis anteriorly
Illiacus action
Lesser trochanter
Iliacus insertion
Ilipsoas
Psoas Major and illiacus