anatomy leg muscles, insertions origins and nerves

muscles in the anterior compartment of the calf

Tibialis anterior, extensor hallicus longus, extensor digitorum longus, fibularis tertius

what muscle is this in the anterior compartment of the calf

tibialis anterior

what muscle is this in the anterior compartment of the calf

extensor hallicus longus

what muscle is this in the anterior compartment of the calf

extensor digitorum longus

what muscle is this in the anterior compartment of the calf

fibularis tertius

what muscle are in the lateral leg compartment

fibularis longus and fibularis brevis

what muscle is this in the lateral compartment of the calf

fibularis longus

what muscle is this in the lateral compartment of the calf

fibularis brevis

what are the posterior compartment leg muscles

gastrocnemius, soleus, tibialis posterior, popliteal, plantaris, flexor hallicus longus, flexor digitorum longus, flexor digitorum brevis,

what muscle is this

soleus

what muscle is this

tibialis posterior

what muscle is this

popliteal

what muscle is this

plantaris

what muscle is this

flexor digitorum longus

what muscle is this

flexor hallicus longus

how many layers are there of intrinsic muscle

4

what are the 3 muscles in the 1st layer

abductor hallicus

flexor digitorum brevis '

abductor digiti minimi

what muscle is this

abductor hallicus

what muscle is this

flexor digitorum brevis

what muscle is this

abductor digiti minimi

what are the 2 muscles are in the 2nd layer

quadratus plantae

lumbricles

what muscle is this

lumbricals

what mucsle is this

quadratus plantae

what are the third layers

flexor hallicus brevis

adductors hallicus

flexor digiti minimi

what are the 4 muscles in the 4th layer

dorsal interossei

plantar interossei

extensor digitorum brevis

extensor hallicus brevis

what is the origin/insertion, innervation and what is the function of the tibialis anterior

origin: lateral tibial condyle proximal half laterally and interosseus membrane

insertion: medial cuneiform bone and base of first metatarsal bone

innervation: deep fibular nerve L4,L5

Function: dorsiflexion and inversion

what is the origin/insertion, innervation and what is the function of the Extensor hallicus longus

Origin: medial surface of fibula, interosseous membrane

insertion: base of distal phalanx of great toe

innervation: deep fibular nerve L5 S1

Function: extension/dorsiflexion

what is the origin/insertion, innervation and what is the function of the extensor digitorum longus

Origin: medial surface of fibula, lateral tibial condyle, and interosseous membrane

insertion: distal and middle phalanges of distal 2-5

innervation: deep fibular nerve L5,S1

function: extension and eversion

what is the origin/insertion, innervation and what is the function of the fibularis tertius

origin: medial surface of fibula, anterior intermuscular septum

insertion: dorsal surface of base of 5th metatarsal

innervation: deep fibular nerve L5,S1

function: dorsiflexion and eversion

what is the origin/insertion, innervation and what is the function of the fibularis longus

origin: head of fibula, proximal 2/3 of lateral surface of fibula anterior and posterior intermuscular septa

insertion: tuberosity of 5th metatarsal

innervation: superficial fibular nerve L5,S1

function: plantar flexion and eversion

what is the origin/insertion, innervation and what is the function of the fibularis brevis

origin: distal 2/3 of lateral surface of fibula, anterior intermuscular septum

insertion: tuberosity of 5th metatarsal

innervation: superficial fibular nerve

function: plantar flexion and eversion

what is the origin/insertion, innervation and what is the function of the gastrocnemius

origin lateral head: posterolateral surface of lateral femoral condyle

origin medial head: posterior surface of medial femoral condyle, popliteal surface of femoral shaft

insertion: posterior surface of calcaneus

innervation: tibial nerve S1,S2

Function: plantarflexion and knee flexion

what is the origin/insertion, innervation and what is the function of the soleus

Origin: soleal line, medial border of tibia, head of fibula, posterior border of fibula

insertion: posterior surface of calcaneus

innervation: tibial nerve S1,S2

function: plantar flexion

what is the origin/insertion, innervation and what is the function of the plantaris

origin: lateral supracondylar line of femur, oblique poplteal ligament of knee

insertion: posterior surface of calcaneus

innervation: tibial nerve S1,S2

function: plantar flexion and leg flexion at knee

what is the origin/insertion, innervation and what is the function of the popliteus

origin: lateral femoral condyle, posterior horn of lateral meniscus, of knee

insertion: posterior surface of proximal tibial

innervation: tibial nerve L5-S2

function: knee joint stabilization and knee unlocker Open chain (foot not planted): Medial rotation of the tibia

Closed chain (foot planted): Lateral rotation of the femur on the tibia

what is the origin/insertion, innervation and what is the function of the tibialis posterior

origin: posterior surface of tibia, posterior surface of fibula, interosseous membrane

insertion: tuberosity of naviualr bone, all cuneiforms, and metatarsals 2-4

innervation: tibial nerve L4,L5

function: plantar flexion. and inversion

what is the origin/insertion, innervation and what is the function of the flexor digitorum longus

origin: posterior surface to tibia

insertion: bases of distal phalanges of digits 2-5

innervation: tibial nerve L5-S2

function: toe flexion, plantar flexion, and inversion

what is the origin/insertion, innervation and what is the function of the flexor hallucis longus

origin: distal 2/3 posterior surface of fibula, interosseous membrane, posterior intermuscular septum, fascia of tibialis posterior muscle

insertion: base of distal phalanx of great toe

innervation: tibial nerve S2, S3

function: flexion and inversion

what are the calf nerves and what compartment of the leg does it innervate

Tibial nerve: posterior compartment both deep and superficial

Deep fibular nerve: anterior compartment of the leg

Superficial fibular nerve: lateral compartment of the leg