thursday june 18 Flashcards
ant compartment innervation
deep fibular nerve (peroneal n)
ant compartment muscles
fibularis tertius
tibialis anterior
extensor digitorum longus
extensor hallucis longus
blood suppyl to ant compart
ant tibial artery
Tibialis ant. attachement (ant compartment)
lateral condyle and lateral 2/3 of lateral surface of tibia and interosseous membrane
Tibialis anterior distal attachment (insertion)
medial and inferior surfaces of medial cuneiform and 1st base of metatarsals
tibialis anterior action
dorsiflexes ankle,inverts foot and and supports medial longitudinal arch of foot
ant compart. - extensor hallucis longus - O:
middle part of ant surface of fibula and interosseous membrane
extensor hallucis longus - insertion
dorsal aspect of base of middle phalanx of great toe
extensor hallucis longus - innervation and action
deep fibular nerve (peroneal) L5,S1
extends great toe and dorsiflexes ankle
extensor digitorum longus (ant compart.)- O
lateral condyle of tibia and superior 2/3 of ant. surface of fibula and interosseous membrane
extensor digitorum longus insertion
middle and distal phalangis of lateral 4 digits
fibularis tertius - O
inferior third of ant. surface of fibula and interosseous membrane
fibularis tertius - I
dorsum of base of 5th metatarsal
tibularis tertius - I/A
dorsiflexes ankle and aids in eversion of foot
deep fibula nerve (l5,S1), called also peroneal
lateral compartment muscles
fibularis longus m
fibularis brevis m
fibularis longus -O
head and superior 2/3of lateral surface of fibula
fibularis longus (lateral compartment) - I
base of 1st metatrsal and medial cuneiform
evert foot
lateral compartment: fibularis longus m and fibularis brevis m
ant compartment: fibularis tertius
fibularis longus innervation/action
superior fibular nerve (L5, S1,S2)
evert foot
weekly plantar flex ankle
SUPPORTS TRANSVERS ARCH OF FOOT
FIBULARIS BREVIS M - O
middle part of lateral surface of fibula
fibularis brevis - I
dorsal surface of tuberosisty of base of 5th metatarsal
fibularis brevis I/A
superficial fibularis nerve (L5,S1,S2)
evert foot and weakly pantarflex ankle
lateral compartment or evertor compartment of leg
lateral surface of fibula, ant and post. intermuscular sept and deep fascia of leg
how do lateral compartment muscles pass?
fibularis longus and brevis pass posterior to lateral malleolus