Anatomy - Lower Limb Muscles Flashcards
Iliacus - attachments
Origin - iliac fossa
Insertion - lesser trochanter of femur
Iliacus - innervation
Femoral nerve
Iliacus - actions
Flexion of hip
Psoas major - attachements
Origin - lumbar vertebrae
Insertion - lesser trochanter of femur
Psoas major - innervation
Anterior rami of L1-L3
Psoas major - actions
Flexion of hip
Muscles of quadratus femoris
Vastus lateralis
Vastus intermedius
Vastus medialis
Rectus femoris
Vastus lateralis - attachments
Origin - greater trochanter of femur
Insertion - ?
Vastus lateralis - innervation
Femoral nerve
Vastus lateralis - actions
Extension of knee
Vastus intermedius - attachments
Origin - anterior and lateral surfaces of femoral shaft
Insertion - ?
Vastus intermedialis - innervation
Femoral nerve
Vastus intermedius - actions
Extension of knee
Vastus medialis - attachments
Origin - intertrochanteric line and medial lip of linea aspera
Vastus medialis - innervation
Femoral nerve
Vastus medialis - actions
Extension of knee
Rectus femoris - attachments
Origin - anterior inferior iliac spine and area of ilum superior to acetabulim
Insertion - patella via quadriceps femoris tendon
Rectus femoris - innervation
Femoral nerve
Rectus femoris - actions
Flexion of hip
Extension of knee
Sartorius - attachments
Origin - anterior superior iliac spine
Insertion - superior, medial surface of tibia
Sartorius - innervation
Femoral nerve
Sartorius - actions
Flexion and abduction of hip
Flexion of knee
Pectineus - attachments
Origin - pectineal line on anterior surface of pelvis
Insertion - pectineal line on posterior side of femur
Pectineus - innervation
Femoral nerve
Pectineus - actions
Adduction and flexion of hip
Adductor magnus - attachments
- Origin
- Adductor part - inferior rami of rubis
- Hamstring part - ischial tuberosity
- Insertion
- Adductor part - linea aspera of femur
- Hamstring part - adductor tubercle and medial supracondylar line of femur
Adductor magnus - innervation
Adductor part - obturator nerve
Hamstring part - tibial component of sciatic nerve
Adductor magnus - actions
Both components adduct hip, adductor components also flexes hip and hamstring portion extends hip
Adductor longus - attachments
Origin - pubis
Insertion - linea aspera of femur
Adductor longus - innervation
Obturator nerve
Adductor longus - actions
Adduction of thigh
Adductor brevis - attachments
Origin - body of pubis
Insertion - linea aspera on posterior surface of femur
Adductor brevis - innervation
Obturator nerve
Adductor brevis - actions
Adduction of hip
Obturator externus - attachments
Origin - membrane of obturator foramen
Insertion - posterior aspect of greater trochanter
Obturator externus - innervation
Obturator nerve
Obturatory externus - actions
Adduction and lateral rotation of hip
Gracilis - attachments
Origin - inferior rami of pubis
Insertion - medial surface of tibia
Gracilis - innervation
Obturator nerve
Gracilis - actions
Adduction of hip
Flexion of knee
Gluteus maximus - attachments
Origin - posterior surface ileum, sacrum and coccyx
Insertion - Iliotibial tract and gluteal tuberosity of femur
Gluteus maximus - innervation
Inferior gluteal nerve
Gluteus maximus - actions
Extension of hip
Lateral roation
Gluteus medius - attachments
Origin - gluteal surface of ileum
Insertion - lateral surface of greater trochanter
Gluteus medius - innervation
Superior gluteal nerve
Gluteus medius - actions
Adduction and medial rotation of hip
Gluteus minimus - attachments
Origin - ileum
Insertion - anterior side greater trochanter
Gluteus minimus - innervation
Superior gluteal nerve
Gluteus minimus - actions
Abduction and medial rotation of hip
Tensor fascia lata - attachments
Origin - anterior iliac crest
Insertion - iliotibial tract which attaches to lateral condyle of tibia
Tensor fascia lata - innervation
Superior gluteal nerve
Tensor fascia lata - actions
Adduction and medial rotation of hip