Leg & Foot Muscle Chart:
Trail Guide Leg & foot: page 359
Muscle: Origin: Insertion: Action: Innervation:
Gastrocnemius - Condyles of the - Calcaneusvia - Flexthe knee -Tibial S1,2
femur, posterior calcaneal tendon (tibiofemoral
surfaces joint)
( Posterior
Compartment) - Plantar flex
the ankle
( Superficial (talocrural joint)
Group)
Soleus - Soleal line; - Calcaneusvia - Plantar flex -Tibial L5, S1,2
proximal, calcaneal tendon the ankle
( Posterior posterior (talocrural joint)
Compartment) surface of tibia;
( Superficial - posterior aspect
Group) of head of fibula
Plantaris - Lateral - Calcaneusvia - Weak plantar - Tibial L4,5, S1,
supracondylar calcaneal tendon flexion of the (2)
line offemur ankle(talocrural
( Posterior joint)
Compartment)
- Weak flexion
( Superficial of the knee
Group) (tibiofemoral
joint)
Popliteus - Lateral condyle - Proximal, - Medially -Tibial L4,5, S1
of the femur posterior aspect rotate the
( Deep of tibia flexed knee
Posterior) (tibiofemoral
joint)
- Flex the knee
(T/F joint)
, ibialis
T - Proximal, - All five tarsal -Invert the foot - Tibial L(4),5,
Posterior posterior shafts bones and bases S1
of tibia and of second - Plantar flex
fibula; and through fourth the ankle
( Deep interosseous metatarsals (talocrural joint)
Posterior) membrane
lexor
F - Middle, - Distal - Flex the - Tibial L5, S1,
Digitorum posterior surface phalanges of second through (2)
Longus oftibia second through fifth toes
fifth toes (metatarsophala
ngeal and
( Deep
interphalangeal
Posterior)
joints)
- Weak plantar
flexion of ankle
(talocrural joint)
-Invert the foot
lexor Hallucis - Middle half of
F - Distal phalanx - Flex the first -Tibial L5, S1,2
Longus posterior fibula of first toe toe
(metatarsophala
( Deep ngeal and
Posterior) interphalangeal
joints)
- Weak plantar
flexion of ankle
(talocrural joint)
-Invert the foot
ibularis
F - Head of fibula - Base of the first - Evert the foot - Superficial
Longus and proximal metatarsal and fibular L4,5, S1
two-thirds of medial -Assist to
( Lateral lateral fibula cuneiform plantar flex the
Compartment) ankle(talocrural
joint)
Fibularis Brevis -Distal -Tuberosity of -Evert the foot -Superficial
Trail Guide Leg & foot: page 359
Muscle: Origin: Insertion: Action: Innervation:
Gastrocnemius - Condyles of the - Calcaneusvia - Flexthe knee -Tibial S1,2
femur, posterior calcaneal tendon (tibiofemoral
surfaces joint)
( Posterior
Compartment) - Plantar flex
the ankle
( Superficial (talocrural joint)
Group)
Soleus - Soleal line; - Calcaneusvia - Plantar flex -Tibial L5, S1,2
proximal, calcaneal tendon the ankle
( Posterior posterior (talocrural joint)
Compartment) surface of tibia;
( Superficial - posterior aspect
Group) of head of fibula
Plantaris - Lateral - Calcaneusvia - Weak plantar - Tibial L4,5, S1,
supracondylar calcaneal tendon flexion of the (2)
line offemur ankle(talocrural
( Posterior joint)
Compartment)
- Weak flexion
( Superficial of the knee
Group) (tibiofemoral
joint)
Popliteus - Lateral condyle - Proximal, - Medially -Tibial L4,5, S1
of the femur posterior aspect rotate the
( Deep of tibia flexed knee
Posterior) (tibiofemoral
joint)
- Flex the knee
(T/F joint)
, ibialis
T - Proximal, - All five tarsal -Invert the foot - Tibial L(4),5,
Posterior posterior shafts bones and bases S1
of tibia and of second - Plantar flex
fibula; and through fourth the ankle
( Deep interosseous metatarsals (talocrural joint)
Posterior) membrane
lexor
F - Middle, - Distal - Flex the - Tibial L5, S1,
Digitorum posterior surface phalanges of second through (2)
Longus oftibia second through fifth toes
fifth toes (metatarsophala
ngeal and
( Deep
interphalangeal
Posterior)
joints)
- Weak plantar
flexion of ankle
(talocrural joint)
-Invert the foot
lexor Hallucis - Middle half of
F - Distal phalanx - Flex the first -Tibial L5, S1,2
Longus posterior fibula of first toe toe
(metatarsophala
( Deep ngeal and
Posterior) interphalangeal
joints)
- Weak plantar
flexion of ankle
(talocrural joint)
-Invert the foot
ibularis
F - Head of fibula - Base of the first - Evert the foot - Superficial
Longus and proximal metatarsal and fibular L4,5, S1
two-thirds of medial -Assist to
( Lateral lateral fibula cuneiform plantar flex the
Compartment) ankle(talocrural
joint)
Fibularis Brevis -Distal -Tuberosity of -Evert the foot -Superficial
