Lab 6: Myology-Superficial & Dorsal & Ventral Hind Limb Flashcards
AOI
Iliopsoas (iliacus and psoas major)
Action: Flexion of thigh and lateral rotation of femur
Origin: Iliac fossa, ala of sacrum and vertebrae (T12-L5)
Insertion: Lesser trochanter (femur)
Sartorius
Action: Flexion of thigh and lateral rotation of femur
Origin: Anterior superior iliac spine
Insertion: Proximal shaft of tibia
Adductor magnus
Action: Adduction and extension of thigh
Origin: Pubis and ischium
Insertion: Gluteal tuberosity and linea aspera
Adductor longus and brevis
Action: Adduction of thigh
Origin: Body and inferior ramus (pubis)
Insertion: Linea aspera
Pectineus
Action: Adducts, flexes and medially rotates thigh
Origin: Body and superior ramus (pubis)
Insertion: Proximal shaft of femur
Gracilis
Action: Adduction of thigh; flexion of leg
Origin: Body and superior ramus (pubis)
Insertion: Proximal shaft of tibia
Rectus femoris (quadriceps)
Action: Extension of leg; flexion of thigh
Origin: Anterior inferior iliac spine
Insertion: patella and tibial tuberosity
Vastus lateralis (quadriceps)
Action: Extension of leg
Origin: Greater trochanter (femur)
Insertion: patella and tibial tuberosity
Vastus medialis (quadriceps)
Action: extension of leg
Origin: intertrochanteric line and linea aspera (femur)
Insertion: patella and tibial tuberosity
Vastus intermedius (quadriceps)
Action: Extension of leg
Origin: Anterolateral shaft of femur
Insertion: Patella and tibial tuberosity
Tensor fasciate latae
Action: Flexion, abduction, and medial rotation of thigh
Origin: Anterior superior iliac spine
Insertion: iliotibal tract
Gluteus medius
Action: abduction of thigh
Origin: ala (ilium)
Insertion: greater trochanter (femur)
gluteus maximus
Action: extension, lateral rotation and abduction of thigh
Origin: ala (ilium); sacrum; coccyx
Insertion: gluteal tuberosity (femur)
biceps femoris (hamstring)
Action: flexion of leg; extension of thigh
Origin: ischial tuberosity
Insertion: head of fibula
semitendinosus
Action: flexion of leg; extension of thigh
Origin: ischial tuberosity
Insertion: proximal shaft of tibia
semimembranosus
Action: Flexion of leg; extension of thigh
Origin: ischial tuberosity
Insertion: medial condyle (tibia)
Tibialis anterior
Action: Dorsiflexes and inverts foot
Origin: lateral condyle shaft (tibia); interosseous membrane
Insertion: metatarsal I; medial cuneiform
Extensor digitorum longus
Action: Extension of toes II-V; dorsiflexion and eversion of foot
Origin: lateral condyle shaft (tibia); interosseous membrane
Insertion: distal phalanges II-V
Extensor hallucis longus
Action: Extension of great toe; dorsiflexion and inversion of foot
Origin: Fibula; interosseous membrane
Insertion: distal phalynx of the great toe
Fibularis (peroneus) tertius
Action: Dorsiflexion and eversion of the foot
Origin: Fibula; interosseous membrane
Insertion: metatarsal V
Fibularis (peroneus) brevis
Action: Plantar flexion of foot and eversion of foot
Origin: distal shaft of fibula
Insertion: metatarsal V
Fibularis (peroneus) longus
Action: plantar flexion and eversion of foot
Origin: proximal shaft of fibula
Insertion: metatarsal I; medical cuneiform
Gastronemius (medial and lateral head)
Action: plantar flexion of foot; flexion of leg
Origin: medial and lateral condyles (femur)
Insertion: calcaneus
Plantaris
Action: Plantar flexion of foot; flexion of leg
Origin: Distal shaft of femur
Insertion: calcaneus
