Muscles: Pelvis, Thigh Flashcards
Name the muscle and its origin and insertion
Quadriceps: Rectus Femoris
Origin: Anterior Inferior Iliac Spine
Insertion: Tibial tuberosity via patellar tendon
Name the muscle and its actions
Quadriceps: Rectus Femoris
Actions:
Extend knee (tibiofemoral joint)
Flex hip (coxal joint)
Name the muscle and its origin and insertion
Quadriceps: Vastus Medialis
Origin: medial lip of linea aspera
Insertion: Tibial tuberosity via patellar tendon
Name the muscle and its actions
Quadriceps: Vastus Medialis
Actions:
Extend knee (Tibiofemoral jt)
Name the muscle and its origin and insertion
Quadriceps: Vastus Lateralis
Origin: Lateral lip of linea aspera, gluteal tuberosity, greater trochanter
Insertion: Tibial tuberosity via patellar tendon
Name the muscle and its actions
Quadriceps: Vastus lateralis
Actions: Extend knee (tibiofemoral jt)
Name the muscle and its origin and insertion
Quadriceps: Vastus Intermedius
Origin: Anterior and lateral shaft of the femur
Insertion: Tibial tuberosity via patellar tendon
Name the muscle and its actions
Quadriceps: Vastus intermedius
Actions: Extend knee (tibiofemoral joint)
Name the muscle and its origin and insertion
Hamstrings: Biceps Femoris
Top Green: Long head
Bottom Green: Short head
Origin
Long head: Ischial tuberosity
Short head: Lateral lip of linea aspera
Insertion: Head of the fibula
Name the muscle and its actions
Hamstrings: Biceps femoris
Actions:
Flex the knee (Tibiofemoral jt)
Laterally rotate flexed knee (T/F jt)
Long head: Extend the hip (coxal jt)
Long head: Assist to laterally rotate the hip (coxal jt)
Name the muscle and its origin and insertion
Hamstrings: Semitendinosus
Origin: Ischial tuberosity
Insertion: Proximal medial shaft of the tibia at pes anserinus tendon
Name the muscle and its actions
Hamstrings: Semitendinosus
Actions:
Flex the knee (TF jt)
Medially rotate the flexed knee (TF jt)
Extend hip (coxal jt)
Tilt pelvis posteriorly
Name the muscle and its origin and insertion
Hamstrings: Semimembranosus
Origin: Ischial tuberosity
Insertion: Posterior aspect of medial condyle of tibia
Name the muscle and its actions
Hamstrings: Semimembranosus
Actions
Flex the knee (TF jt)
Medially rotate flexed knee (TF jt)
Extend hip (coxal jt)
Assist to medially rotate hip (coxal jt)
Tilt pelvis posteriorly
Name the muscles and muscle group
Orange: Hamstring group
Green: Semitendinosus
Blue: Biceps femoris
Yellow: Semimembranosus
Name the muscle and its origin and insertion
Gluteus Maximus
Origin: Coccyx, edge of sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments
Insertion: Iliotibial tract (upper fibers) and gluteal tuberosity (lower fibers)
Name the muscle and its actions
Gluteus Maximus
Actions:
All fibers:
Extend the hip (coxal jt)
Laterally rotate the hip (coxal jt)
Abduct the hip (coxal jt)
Lower Fibers:
Adduct the hip (coxal jt)
Name the muscle and its origin and insertion
Gluteus Medius
Origin: Gluteal surface of ilium, between posterior and anterior gluteal lines, just below the iliac crest
Insertion: Lateral aspect of greater trochanter
Name the muscle and its actions
Gluteus Medius
Actions
All fibers: Abduct the hip (coxal jt)
Anterior fibers:
Flex the hip (coxal jt)
Medially rotate the hip (coxal jt)
Posterior fibers:
Extend the hip (coxal jt)
Laterally rotate the hip (coxal jt)
Name the muscle and its origin and insertion
Gluteus Minimus
Origin: Gluteal surface of the ilium between the anterior and inferior gluteal lines
Insertion: Anterior aspect of greater trochanter
Name the muscle and its actions
Gluteus Minimus
Actions:
Abduct the hip (coxal jt)
Medially rotate the hip (coxal jt)
Flex the hip (coxal jt)
Name the muscle in red and its origin and insertion
Adductor magnus
Origin: Inferior ramus of the pubis, ramus of ischium and ischial tuberosity
Insertion: Medial lip of linea aspera and adductor tubercle
Name the muscle in red and its action
Adductor Magnus
Actions:
All:
Adduct the hip (coxal jt)
Medially rotate hip (coxal jt)
All except Gracilis: Assist to flex hip (coxal jt)
Posterior fibers of Adductor magnus:
Extend the hip (coxal joint)
Name the muscle in blue and its origin and insertion
Adductor Longus
Origin: Pubis tubercle
Insertion: Medial lip of linea aspera
Name the muscle in green and its actions
Adductor Longus
Actions
All:
Adduct hip (coxal jt)
Medially rotate hip (coxal jt)
All (sans gracilis): Flex the hip (coxal jt)
Name the muscle in green and its origin and insertion
Adductor Brevis
Origin: Inferior ramus of pubis
Insertion: Pectineal line and medial lip of linea aspera
Name the muscle in blue and its actions
Adductor Brevis
Actions
All:
Adduct hip (coxal jt)
Medially rotate hip (coxal jt)
All (sans gracilis): flex the hip (coxal jt)
Name the muscle in orange and its origin and insertion
Pectineus
Origin: Superior ramus of pubis
Insertion: Pectineal line of femur
Name the muscle in orange and its actions
Pectineus
Actions
All:
Adduct hip (coxal jt)
Medially rotate hip (coxal jt)
All (sans gracilis): Flex the hip (coxal jt)
Name the muscle in yellow and its origin and insertion
Gracilis
Origin: Inferior ramus of pubis
Insertion: Proximal, medial shaft of tibia pes anserinus tendon
Name the muscle in yellow and its actions
Gracilis
Actions
All:
Adduct hip (coxal jt)
Medially rotate hip (coxal jt)
Gracilis:
Flex the knee
Medially rotate flexed knee
Name the muscle and its origin and insertion
Tensor Fasciae Latae
Origin: iliac crest posterior to ASIS
Insertion: Iliotibial band/tract
Name the muscle and its actions
Tensor Fasciae Latae
Actions:
Flex hip
Medially rotate hip
Abduct hip
Name the muscle and its origin and insertion
Sartorius
Origin: Anterior superior iliac spine
Insertion: Proximal, medial shaft of the tibia at pes anserinus tendon
Name the muscle and its actions
Sartorius
Actions:
Flex the hip (coxal jt)
Laterally rotate the hip (coxal jt
Abduct the hip (coxal jt)
Flex the knee (tibiofemoral jt)
Medially rotate the flexed knee (TF jt)
Name the muscle and its origin and insertion
Lateral Rotator of Hip: Piriformis
Origin: Anterior surface of sacrum
Insertion: Superior aspect of greater trochanter
Name the muscle and its action
Lateral Rotator of Hip: Piriformis
Actions:
Laterally rotate the hip (coxal jt)
Abduct the hip when hip is flexed
Name the muscle and its actions
Lateral Rotator Hip: Obturator externus
Actions:
Laterally rotate hip
Name the muscle and its actions
LRH: Quadratus femoris
Actions: Laterally rotate hip (coxal)
Name the muscle and its actions
LRH: Obturator Internus
Actions:
Laterally rotate hip (coxal)
Name the muscle and its actions
LRH: Gemellus Superior
Actions:
Laterally rotate hip (coxal)
Name the muscle and its actions
LRH: Gemellus Inferior
Actions:
Laterally rotate hip (coxal)
Name the muscle in green and its origin and insertion
Ilipsoas: Psoas Major
Origin: Bodies and transverse processes of lumbar vertebrae
Insertion: Lesser trochanter
Name the muscle in blue and its origin and insertion
Ilipsoas: Iliacus
Origin: Iliac fossa
Insertion: Lesser trochanter
Name them muscles and their actions
Iliopsoas
Green: Psoas Major
Blue: Ilicus
Actions:
With origin fixed:
Flex the hip (coxal)
May laterally rotate the hip (coxal)
With insertion fixed:
Flex the trunk toward the thigh
Tip pelvis anteriorly
Psoas Major only: Assist to laterally flex the lumbar spine
