ch11 Muscles lower limb

iliopsoas

O:

Iliacus: Iliac fossa of Ilium

Psoas major: T12 & lumbar vertebrae

I: lesser trochanter femur

A: flex thigh

iliopsoas

O:

Iliacus: Iliac fossa of Ilium

Psoas major: T12 & lumbar vertebrae

I: lesser trochanter femur

A: flex thigh

gluteus maximus

O: llium

Sacrum

Coccyx

I: Femur (gluteal tuberosity)

A: Extension of thigh (primary

• Lateral rotation of thigh

• Abduction of thigh

iliopsoas

O:

Iliacus: Iliac fossa of Ilium

Psoas major: T12 & lumbar vertebrae

I: lesser trochanter femur

A: flex thigh

iliopsoas

O:

Iliacus: Iliac fossa of Ilium

Psoas major: T12 & lumbar vertebrae

I: lesser trochanter femur

A: flex thigh

rectus femoris

O: Ilium

I: tibial tuberosity

A: flex thigh

extension leg

rectus femoris

O: Ilium

I: tibial tuberosity

A: flex thigh

extension leg

sartorius

O: Ilium

I: Tibia

A: Flexion, abduction, lateral

rotation of the thigh

flex leg

sartorius

O: Ilium

I: Tibia

A: Flexion, abduction, lateral

rotation of the thigh

flex leg

vastus lateralis

O: linea aspera + greater trochanter femur

I: Tibial tuberosity

A: leg extension

vastus medialis

O: intertrochanteric line + linea aspera

I: Tibial tuberosity

A: leg extension

sartorius

O: Ilium

I: Tibia

A: Flexion, abduction, lateral

rotation of the thigh

flex leg

vastus medialis

O: intertrochanteric line + linea aspera

I: Tibial tuberosity

A: leg extension

vastus intermedius

O: femur

I: Tibial tuberosity

A: leg extension

vastus lateralis

O: linea aspera + greater trochanter femur

I: Tibial tuberosity

A: leg extension

vastus medialis

O: intertrochanteric line + linea aspera

I: Tibial tuberosity

A: leg extension

graciis

O: Pubis

I: Tibia

A: leg flexion, adduction thigh

vastus lateralis

O: linea aspera + greater trochanter femur

I: Tibial tuberosity

A: leg extension

semitendinosus

O: ischium tuberosity

I: Tibia

A: leg extension, flexion thigh

iliotibial tract

graciis

O: Pubis

I: Tibia

A: leg flexion, adduction thigh

iliopsoas

O:

Iliacus: Iliac fossa of Ilium

Psoas major: T12 & lumbar vertebrae

I: lesser trochanter femur

A: flex thigh

sartorius

O: Ilium

I: Tibia

A: Flexion, abduction, lateral

rotation of the thigh

flex leg

graciis

O: Pubis

I: Tibia

A: leg flexion, adduction thigh

semimembranosus

O: ischium tuberosity

I: medial condyle Tibia

A: leg flexion, thigh extension

iliotibial tract

biceps femoris

O: Ischium, Femur

I: head of fibula

A: leg flexion, thigh extension

semitendinosus

O: ischium tuberosity

I: Tibia

A: leg extension, flexion thigh

biceps femoris

O: Ischium, Femur

I: head of fibula

A: leg flexion, thigh extension

semimembranosus

O: ischium tuberosity

I: medial condyle Tibia

A: leg flexion, thigh extension

semitendinosus

O: ischium tuberosity

I: Tibia

A: leg extension, flexion thigh

Tibialis anterior

O: tibia

I: metatarsal 1, medial cuneiform

A: dorsiflexion foot (primary)

inversion

gastrocnemius

O: Medial & lateral condyles

of the femur

I: calcaneus

A: planter flexion foot

leg flexion

soleus

O: Tibia (posterior)

Fibula (posterior)

I: calcaneus

A: planter flexion foot

calcaneal tendon (Achilles heal)

Common tendon for the gastrocnemius and soleus muscles

Inserts on the calcaneus

soleus

O: Tibia (posterior)

Fibula (posterior)

I: calcaneus

A: planter flexion foot