Popliteus Has the nickname "the key which unlocks the knee." Sartorius This is the longest muscle in the body. Plantar Interossei Inserts on the medial surfaces of proximal phalanges of 3rd-5th toes. Extensor Digitorum Brevis Originates on the dorsal surface of calcaneus. Biceps Femoris Has 2 heads- a superficial long head and a deeper short head. Semimembranosus Innervates the Sciatic (tibial branch) L4, 5, S1, 2 nerve. Extensor Digitorum Longus Originates on the lateral condyle of tibia; proximal, anterior shaft of fibula; and interosseous membrane. Quadratus Plantae Originates on the medial and lateral sides of plantar surface of calcaneus. Semitendinosus Inserts on the proximal, medial shaft of the tibia at the pes anserinus tendon. Extensor Hallucis Longus Extends the first toe, dorsiflex the ankle, and inverts the foot. Vastus Intermedius Originates on the anterior and lateral shaft of the femur. Abductor Digiti Minimi Originates on the lateral process of calcaneus and plantar aponeurosis. Fibularis Longus Originates at the head of the fibula and proximal two- thirds of lateral fibula. Tibialis Anterior Inverts the foot and dorsiflex the ankle. Abductor Hallucis Abducts the first toe, and assists to flex the first toe. Rectus Femoris The only quadriceps muscle to cross two joints. Tensor Fasciae Latae Innervates the Superior Gluteal L4, 5, S1 nerve. Flexor Digiti Minimi Brevis Flexes the fifth toe. Flexor Digitorum Longus Inserts on the distal phalanges of second through fifth toes. Gastrocnemius Flexes the knee and plantar flexes the ankle Flexor Hallucis Longus Flexes the first toe, weak plantar flexion of ankle, and inverts the foot. Tibialis Posterior Inserts on all five tarsal bones and bases of 2nd- 4th metatarsals. Gracilis Innervates the Obturator L2, 3, 4 nerve. Vastus Medialis Forms a "teardrop" shape. Flexor Digitorum Brevis Inserts on the middle phalanges of second through fifth toes. Adductor Hallucis Innervates the Tibial S1, 2 nerve. Lumbricals of the Foot The first innervates the Tibial L4, 5, S1 and the 2nd-4th innervates the Tibial L(4), (5), S1, 2 nerve. Dorsal Interossei Abducts the 2nd-4th toes, and flexes the 2nd-4th toes. Fibularis Brevis Inserts at the tuberosity of the fifth metatarsal. Plantaris This muscle has the longest tendon in the body. Extensor Hallucis Brevis Inserts on the proximal phalanx of first toe. Soleus Sometimes called the "second heart" because of its important role in its strong contractions returning blood from the leg to the heart. Flexor Hallucis Brevis Innervates the Tibial L4, 5, S1 nerve. Vastus Lateralis Innervates the Femoral L2, 3, 4 nerve. Popliteus Has the nickname "the key which unlocks the knee." Sartorius This is the longest muscle in the body. Plantar Interossei Inserts on the medial surfaces of proximal phalanges of 3rd-5th toes. Extensor Digitorum Brevis Originates on the dorsal surface of calcaneus. Biceps Femoris Has 2 heads- a superficial long head and a deeper short head. Semimembranosus Innervates the Sciatic (tibial branch) L4, 5, S1, 2 nerve. Extensor Digitorum Longus Originates on the lateral condyle of tibia; proximal, anterior shaft of fibula; and interosseous membrane. Quadratus Plantae Originates on the medial and lateral sides of plantar surface of calcaneus. Semitendinosus Inserts on the proximal, medial shaft of the tibia at the pes anserinus tendon. Extensor Hallucis Longus Extends the first toe, dorsiflex the ankle, and inverts the foot. Vastus Intermedius Originates on the anterior and lateral shaft of the femur. Abductor Digiti Minimi Originates on the lateral process of calcaneus and plantar aponeurosis. Fibularis Longus Originates at the head of the fibula and proximal two- thirds of lateral fibula. Tibialis Anterior Inverts the foot and dorsiflex the ankle. Abductor Hallucis Abducts the first toe, and assists to flex the first toe. Rectus Femoris The only quadriceps muscle to cross two joints. Tensor Fasciae Latae Innervates the Superior Gluteal L4, 5, S1 nerve. Flexor Digiti Minimi Brevis Flexes the fifth toe. Flexor Digitorum Longus Inserts on the distal phalanges of second through fifth toes. Gastrocnemius Flexes the knee and plantar flexes the ankle Flexor Hallucis Longus Flexes the first toe, weak plantar flexion of ankle, and inverts the foot. Tibialis Posterior Inserts on all five tarsal bones and bases of 2nd- 4th metatarsals. Gracilis Innervates the Obturator L2, 3, 4 nerve. Vastus Medialis Forms a "teardrop" shape. Flexor Digitorum Brevis Inserts on the middle phalanges of second through fifth toes. Adductor Hallucis Innervates the Tibial S1, 2 nerve. Lumbricals of the Foot The first innervates the Tibial L4, 5, S1 and the 2nd-4th innervates the Tibial L(4), (5), S1, 2 nerve. Dorsal Interossei Abducts the 2nd-4th toes, and flexes the 2nd-4th toes. Fibularis Brevis Inserts at the tuberosity of the fifth metatarsal. Plantaris This muscle has the longest tendon in the body. Extensor Hallucis Brevis Inserts on the proximal phalanx of first toe. Soleus Sometimes called the "second heart" because of its important role in its strong contractions returning blood from the leg to the heart. Flexor Hallucis Brevis Innervates the Tibial L4, 5, S1 nerve. Vastus Lateralis Innervates the Femoral L2, 3, 4 nerve.
(Print)
M-Has the nickname "the key which unlocks the knee."
M-This is the longest muscle in the body.
I-Inserts on the medial surfaces of proximal phalanges of 3rd-5th toes.
O-Originates on the dorsal surface of calcaneus.
M-Has 2 heads- a superficial long head and a deeper short head.
N-Innervates the Sciatic (tibial branch) L4, 5, S1, 2 nerve.
O-Originates on the lateral condyle of tibia; proximal, anterior shaft of fibula; and interosseous membrane.
O-Originates on the medial and lateral sides of plantar surface of calcaneus.
I-Inserts on the proximal, medial shaft of the tibia at the pes anserinus tendon.
A-Extends the first toe, dorsiflex the ankle, and inverts the foot.
O-Originates on the anterior and lateral shaft of the femur.
O-Originates on the lateral process of calcaneus and plantar aponeurosis.
O-Originates at the head of the fibula and proximal two-thirds of lateral fibula.
A-Inverts the foot and dorsiflex the ankle.
A-Abducts the first toe, and assists to flex the first toe.
M-The only quadriceps muscle to cross two joints.
N-Innervates the Superior Gluteal L4, 5, S1 nerve.
A-Flexes the fifth toe.
I-Inserts on the distal phalanges of second through fifth toes.
A-Flexes the knee and plantar flexes the ankle
A-Flexes the first toe, weak plantar flexion of ankle, and inverts the foot.
I-Inserts on all five tarsal bones and bases of 2nd-4th metatarsals.
N-Innervates the Obturator L2, 3, 4 nerve.
M-Forms a "teardrop" shape.
I-Inserts on the middle phalanges of second through fifth toes.
N-Innervates the Tibial S1, 2 nerve.
N-The first innervates the Tibial L4, 5, S1 and the 2nd-4th innervates the Tibial L(4), (5), S1, 2 nerve.
A-Abducts the 2nd-4th toes, and flexes the 2nd-4th toes.
I-Inserts at the tuberosity of the fifth metatarsal.
M-This muscle has the longest tendon in the body.
I-Inserts on the proximal phalanx of first toe.
M-Sometimes called the "second heart" because of its important role in its strong contractions returning blood from the leg to the heart.
N-Innervates the Tibial L4, 5, S1 nerve.
N-Innervates the Femoral L2, 3, 4 nerve.
