chapter 19 leg, ankle, foot muscles Flashcards
what is the origin, insertion, action of soleus
O:Posterior tibia and fibula
I: Posterior calcaneus
A: Ankle plantar flexion
what is the origin, insertion, action of plantaris
O: Posterior lateral condyle of femur
I: Posterior calcaneus
A: Very weak assist in knee flexion, ankle plantar flexion
what is the origin, insertion, action of tibias posterior
O: Interosseous membrane,
adjacent tibia and fibula
I: Navicular and most tarsals and metatarsals
A: Ankle inversion, assists in plantar flexion
what is the origin, insertion, action of flexor hallicus longus
O: Posterior fibula and
interosseous membrane
\I: Distal phalanx of the great toe
A: Flexes great toe, assists in inversion and plantar flexion of the ankle
what is the origin, insertion, action of flexor digitorum longus
O: Posterior tibia
I: Distal phalanx of four
lesser toes
A: Flexes the four lesser, toes, assists in ankle inversion and plantar flexion
what is the origin, insertion, action of tibialis anterior
O:Lateral tibia and
interosseous membrane
I: First cuneiform and
metatarsal
A: Ankle inversion and dorsiflexion
what is the origin, insertion, action of extensor hallucis longus
O: Fibula and interosseous
membrane
I: Distal phalanx of great toe
A: Extends first toe, assists in ankle inversion and dorsiflexion
what is the origin, insertion, action of extensor digitorum longus
O: Fibula, interosseous membrane, tibia
I: Distal phalanx of four lesser toes
A: Extends four lesser toes, assists in dorsiflexion
what is the origin, insertion, action of fibularis (peroneus) longus
O: Lateral proximal fibula and interosseous membrane
I: Plantar surface of first cuneiform and metatarsal
A: Ankle eversion, assists in plantar flexion
what is the origin, insertion, action of fibularis (peroneus) brevis
O: Lateral distal fibula
I: Base of fifth metatarsal
A: Ankle eversion, assists in plantar flexion
what is the origin, insertion, action of fibularis (peroneus) tertius
O: Distal medial fibula
I: Base of fifth metatarsal
A: Assists ankle eversion, & dorsiflexion
Intrinsic Muscles of the Foot Dorsal Surface and action?
Extensor digitorum brevis , Extends PIP 2-5
Intrinsic Muscles of the Foot Plantar Surface, First Layer and actions?
Abductor hallucis, ABD, flexes 1st IP
Flexor digitorum brevis, Flexes PIP of digits 2-5
Abductor digiti minimi, Flexes, ABDs 5th digit
Intrinsic Muscles of the Foot Plantar Surface, Second Layer
m:Quadratus plantae- A:Straightens diagonal line of pull of flexor digitorum longus
m:Lumbricales- A;Flexes MTPs, extends PIPs and DIPs
Intrinsic Muscles of the Foot Plantar Surface, Third Layer
Flexor hallucis brevis - Flexes MTP of first digit
Adductor hallucis- ADD, flexes first digit
Flexor digiti minimi- Flexes PIP of 5th digit
Intrinsic Muscles of the Foot Dorsal Surface, Fourth Layer
Dorsal interossei - ABDs 2-4 digits
Plantar interossei - ADDs 2-4 digits
which muscles has the tibial nerve
Gastrocnemius- S1, S2
Soleus- S1, S2
Plantaris- L4, L5, S1
Tibialis posterior- L5, S1
Flexor digitorum longus- L5, S1
Flexor hallucis longus- L5, S1, S2
which muscles has the Superficial fibular nerve
Fibularis (Peroneus) longus- L4, L5, S1
Fibularis (Peroneus) brevis - L4, L5, S1
which muscles has Deep Fibular (peroneal) nerve
Fibularis (Peroneus) tertius- L4, L5, S1
Extensor digitorum longus - L4, L5, S1
Extensor digitorum brevis- L5, S1
Extensor hallucis longus- L4, L5, S1
Tibialis anterior- L4, L5, S1
calcaneus valgus
Distal segment away from midline
calcaneus varum
Distal segment toward midline
what are the common diagnosis?
Shin Splints
Pes Planus
Hallux Rigidus
Hammer Toe
Mallet Toe
Claw Toe
Ankle Sprain
Achille’s tendonitis
Bone Spurs
Claw Toe (A)
PIP & DIP flexed
MTP dorsally subluxated
hammer toe
PIP flexed
