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55 terms

anatomy muscles legs with pictures

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Gluteus maximus
O:ilium, sacrum & coccyx
I: iliotibial tract
A: Extends thigh
Gluteus medius
O: ILIUM (lateral surface)
I: greater trochanter
A: abducts & Medially rotates
Gluteus minimus
O: ilium (lateral surface)
I: greater trochanter
A: abducts & Medially rotates
Tensor fasciae latae
O: iliac crest
I: iliotibial tract
A: Abducts & flexes
Piriformis (sciatic nerve is always pointing at it)
O: sacrum (anterolateral)
I: greater trochanter
A: Abducts
Obturator internus
O: obturator foramen
I: greater trochanter
A: laterally rotates
Psoas major
O: lumbar vertebrae
I: lesser trochanter
A: flexes thigh
Psoas major
O: lumbar vertebrae
I: lesser trochanter
A: flexes thigh
Iliacus (and inguinal ligament)
O: iliac fossa
I: lesser trochanter
A: Flexes thigh
Pectineus
O: pubic bone
I: superior surface of femur
A: Adducts
Adductor longus
O: pubic bone
I: linea aspera
A: Adducts
Adductor magnus
O: pubic bone & oschium
I: linea aspera
A: Adducts
Gracilis
O: pubis (inferior ramus)
I: PMS Today = Proximal Medial Surface of Tibia
A: Adducts
Sartorius
O: iliac spine (anterior inferior)
I: PMS today = Proximal Medeial Surface of Tibia
A: Flexes thigh & leg
Rectus femoris
O:iliac spine (anterior inferior)
I: tibial tuberosity
A: flex hip & extend knee
Vastus medialis
Extends leg at the knee; part of the quadriceps group
Vastus lateralis
Extends leg at the knee; part of the quadriceps group
Gracilis
Adducts thigh at the hip and flexes leg at the knee; assists in medial rotation
Vastus medialis
Extends leg at the knee; part of the quadriceps group
Biceps femoris
Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group
Semitendinosus
Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group
Semimembranosus
Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group
Gastrocnemius
Plantar flexion of ankle
Gastrocnemius
Plantar flexion of ankle
Soleus
Plantar flexion of ankle
Soleus
Plantar flexion of ankle
Flexor digitorum longus
Flexes lateral four toes; plantar flexion and inversion of foot
Flexor hallucis longus
Flexes big toe; plantar flexion and inversion of foot
Tibialis anterior
Dorsiflexion of foot at the ankle; inversion of foot
Extensor digitorum longus
Extends the lateral four toes; dorsiflexion of ankle and eversion of foot
Extensor digitorum longus
Extends the lateral four toes; dorsiflexion of ankle and eversion of foot
Peroneus longus
Plantar flexion and eversion of foot; stabilizes the lateral ankle and arch of the foot
Peroneus longus
Plantar flexion and eversion of foot; stabilizes the lateral ankle and arch of the foot
Peroneus brevis
Plantar flexion and eversion of foot
Peroneus brevis
Plantar flexion and eversion of foot
Peroneus longus
Plantar flexion and eversion of foot; stabilizes the lateral ankle and arch of the foot
Peroneus brevis
Plantar flexion and eversion of foot
Soleus
Plantar flexion of ankle
Gluteus medius


& obturator internus (posterior view)
Gluteus medius and minimus:
O: lateral surface of ILIUM
I: greater trochanter of femur
A: adducts & medially rotates
Gluteus maximus
Gluteus maximus:
O: ilium, sacrum & coccyxI: iliotibial tract (wide)
A: extends thigh
Gracilis
O: inferior ramus of pubis
I: PMS Today = Proximal Medial Surface of Tibia
A: adducts
Sartorius (longest muscle in the body)
O: anterior superior iliac spine
I: PMS Today = Proximal Medial Surface of Tibia
A: flexes thigh and leg
Rectus femoris (quadriceps muscles)
O: anterior inferior iliac spine
I: tibial tuberosity
A: flex hip and extend knee

quadriceps muscle
Vastus lateralis (quadricep muscle)
O: linea aspera of femor
I: tibial tuberosity
A: extends leg and knee

quadriceps muscle
Vastus medialis (quadriceps muscle)
O: linea aspera of femur
I: tibial tuberosity
A: extends leg and knee

quadriceps muscle
vastus intermedius (quacriceps muscle)
O: anterior surface of femur
I: Tibial tuberosity
A: extends leg & knee
Semitendinosus
Biceps femoris
Semimembranosus
Gastrocnemius
Soleus
Fibularis longus
Tibialis anterior
Tendon of the gastrocnemius
Calcaneal tendon