Test 2: appendicular muscles- hip, thigh, leg, foot Flashcards
Quadriceps muscle group (quadriceps femoris heads)
Rectus femoris Vastus intermedius Vastus lateralis Vastus medialis ** all insert at tibial tuberosity by patellar tendon
Adductor muscle group
Adductor magnus
Adductor longus
Adductor brevis
Muscles that act on the hip
Tensor
Sartorius
Gracilis
Gluteus muscle group
Gluteus maximus
Gluteus medius
Gluteus minimus
**all originate on outer iliac blade
What do gluteus medius and gluteus minimus have in common?
Both originate on outer iliac blade, both insert at greater trochanter of femur, both abduct and medially rotate thigh
Hamstring muscle group
Biceps femoris
Semitendinosus
Semimembranosus
**all originate at ischial tuberosity
Function of hamstring muscle group
extend thigh, flex leg
Muscles of the feet
Extensor digitorum longus Extensor hallucis longus Plantaris Flexor digitorum longus Flexor hallucis longus
Tensor faciae latae
O- Iliac crest, anterior iliac surface
I- iliotibial band and fascia latae
A- flexes, abducts, medially rotates thigh
Sartorius
O- anterior superior iliac spine
I- proximal, medial tibia
A- flexes, laterally rotates thigh
Gracilis
O- pubic symphysis
I- proximal, medial tibia
A- Flexes, laterally rotates thigh, flexes leg
Gluteus maximus
O- outer iliac blade, iliac crest, sacrum, coccyx
I- gluteal tuberosity of femur
A- extends and laterally rotates thigh, braces knee
Gluteus medius
O- outer iliac blade
I- greater trochanter of femur
A- Abducts and medially rotates thigh
Gluteus minimus
O- outer iliac blade
I- greater trochanter of femur
A- Abducts and medially rotates thigh
Biceps femoris
O- ischial tuberosity, linea aspera
I- head of fibula, lateral condyle of tibia
A- extends thigh, flexes leg
Semitendinosus
O-Ischial tuberosity
I- proximal, medial tibia
A- extends thigh, flexes leg
Semimembranosus
O- Ischial tuberosity
I- medial condyle of tibia
A- extends thigh, flexes leg
Gastrocnemius
O- condyle of femur
I- calcaneous by calcaneal tendon
A- flexes leg, plantar flexes foot
Soleus
O-Posterior, proximal tibia and fibula
I- Calcaneous by calcaneal tendon
A- Plantar flexes foot
Tibialis anterior
O- lateral condyle and proximal tibia
I- first metatarsal, first cubeiform
A- dorsiflexes and inverts foot
Peroneous fibularis longus
O- head and shaft of fibula, lateral condyle of tibia
I- 1st metatarsal, first cuneiform
A- plantar flexes and everts foot
Peroneous fibularis brevis
O- shaft of fibula
I- fifth metatarsal
A- plantar flexes and everts foot
Peroneous fibularis tertius
O- anterior distal fibula
I- 5th metatarsal
A- dorsiflexes and everts foot
Extensor digitorum longus
O- Lateral condyle of tibia, shaft of fibula
I- middle and distal philanges of digits 2-5
A- extends toes, dorsiflexes foot
Extensor hallucis longus
O- anterior shaft of fibula
I- distal phalanx of hallux
A- extends hallux, dorsiflexes foot
Plantaris
O- distal femur
I- calcaneous
A- flexes leg, plantar flexes foot
Flexor digitorum longus
O- posterior tibia
I- distal philanges of digits 2-5
A- flexes toes, plantar flexes and inverts foot
Flexor hallucis longus
O-midshaft of fibula
I- Distal phalanx of hallux
A- Flexes hallux, inverts foot
Muscles found in anterior compartment of the thigh
Quadriceps femoris (rectus femoris, vastus intermedius, vastus lateralus, vastus medialis) Sartorius
Anterior thigh muscles function
Flex hip and/or extend leg/knee
Muscles in medial compartment of thigh
Adductor brevis
adductor longus
adductor magnus
gracilis
Function of medial thigh muscles
thigh adduction and other functions at hip and knee
Muscles of posterior compartment of thigh
Biceps femoris
semitendinosus
semimembrinosus
popliteus
Function of posterior thigh mucles
knee flexion and hip extension, and other actions on the leg
Anterior compartment muscles of lower leg
Tibialis anterior
Extensor digitorum longus
Extensor hallucis longus
Lateral compartment muscles of the lower leg
fibularis longus
fibularis brevis
fibularis tertius
Posterior compartment muscles of lower leg
Gastrocnemius Soleus Tibialis posterior Flexor digitorum longus Flexor hallucis longus
Function of anterior leg muscles
dorsiflex the foot and/or extend the toes
Function of posterior leg muscles
Flex the leg, plantar flex the foot, and/or flex the toes
Function of lateral leg muscles
plantar flex and evert the foot
