A&P Lab Lower Extremity Muscles Flashcards
Origin of Iliopsoas M
Iliacus- Iliac Fossa
Psoas Major- Lateral bodies and transverse processes of L1-L5
Insertion of Iliopsoas M
Lesser Trochanter of femur
Action of Iliopsoas M
Hip flexion, external rotation, ipsilateral lumbar flexion, anterior pelvic rotation
Origin of Tensor Fasciae Latae M
Anterior iliac crest, ASIS
Insertion of Tensor Fasciae Latae M
Iliotibial tract
Action of Tensor Fasciae Latae M
Hip abduction, internal rotation, weak hip flexion
Origin of Sartorius M
ASIS
Insertion of Sartorius M
Pes Anserine
Action of Sartorius M
Hip flexion, Hip external rotation, knee flexion
Origin of Gracilis M
Inferior ramus of pubis
Insertion of Gracilis M
Pes Anserine
Action of Gracilis
Knee flexion, HIp internal rotation, Hip adduction
Origin of Pectineus M
Superior ramus of pubis
Insertion of Pectineus M
Pectineal line of femur
Action of Pectineus
Hip adduction, flexion
Origin of Adductors (longus, brevis, magnus) M
Inferior ramus of pubis, ischial tuberosity
Insertion of Adductors
Linea aspera, adductor tubercle of femur
Action of adductors
Hip adduction, external rotation
Origin of Gluteus Maximus M
Posterior iliac crest, sacrum, coccyx
Insertion of Gluteus Maximus
Gluteal tuberosity of femur
Action of Gluteus Maximus
Hip Extension, external rotation, Posterior pelvic rotation
Origin of Gluteus Medius and Minimus M
Lateral surface of ilium
Insertion of Gluteus Medius and Minimus M
Greater trochanter of femur
Action of Gluteus medius and minimus
internal rotation (minimus), external rotation (medius), hip abduction
Lateral/External rotators M
Piriformis, gemellus superior, gemellus inferior, obturator internus, obturator externus, quadratis femoris
origin of lateral/external rotator muscles
anterolateral sacrum, ischial spine and tuberosity, obturator foramen
insertion of lateral/external rotator muscles
greater trochanter of femur
Action of lateral/external rotator M
Hip external rotation
origin rectus femoris m
AIIS, superior acetabulum
Insertion of rectus femoris m
tibial tuberosity
action of rectus femoris
knee extension, hip flexion
origin of vastus lateralis m
intertrochanteric line of femur, proximal half of linea aspera
insertion of vestus lateralis m
tibial tuberosity
action of vests lateralis
knee extension
origin vastus medialis m
linea aspera of femur
insertion of vastus medialis
tibial tuberosity
action of vastus medialis
knee flexion
origin of vastus intermedius
proximal anterior surface of femur
insertion of vastus intermedius
tibial tuberosity
action of vastus intermedius
knee extension
origin of biceps femoris
long head- ischial tuberosity
short head- distal half linea aspera of femur
insertion of biceps femoris
head of fibula, lateral condyle of tibia
action of biceps femoris
long head-hip extension, external rotation, posterior pelvic rotation
both- knee flexion, external rotation
origin of semitendinosus M
ischial tuberosity
insertion of semitendinosus m
pes anserine
origin of semimembranosus
ischial tuberosity
insertion of semimembranosus
medial condyle of tibia
action of semimembranosus
knee flexion, hip extension, internal rotation of hip and tibia, posterior pelvic rotation
origin of popliteus m
lateral condyle of femur
insertion of popliteus m
proximal posteromedial tibia
action of popliteus
knee flexion, internal rotation of tibia
origin of gastrocnemius
medial head- medial condyle of femur
lateral head- lateral condyle of femur
insertion of gastrocnemius
calcaneus
action of gastrocnemius
ankle plantar flexion, knee flexion
origin of soleus
posterior proximal fibula and tibia
insertion of soleus
calcaneus
action of soleus
ankle plantarflexion
origin of tibialis anterior m
lateral condyle, proximal anterior portion of tibia
insertion of tibialis anterior
medial cuneiform, 1st metatarsal
action of tibialis anterior
ankle dorsiflexion, foot inversion