U1 day 6 and 7 Flashcards
Iliopsoas innervation and attachments
inn: femoral nerve, Ax: primary hip flexor
Psoas muscle A: transverse processes of lumbar vertebra. B: lesser trochanter
Iliacus muscle: A: iliac fossa. B: lesser trochanter
Quadriceps femoris is made of what muscles
Rectus femoris (most superior), Vastus medialis (most medial), vastus intermedialus (deep to RF), Vastus lateralis (most lateral on anterior)
Hamstring muscles as a group
Hip extensor and knee flexors, all innervated by sciatic nerve, all start at the ischial tuberosity
Tibia overview
Weight bearing, mm attachment, distal end is medial malleolus
fibula overview
non weight bearing, extensive muscle attachments to this bone, distal end is lateral malleolus
foot movements
plantar flexion > towards floor
dorsiflexion > towards trunk
tibiofibular joint
fibrous fascia, slightly moveable, interosseous membrane separates ant. and post. leg, and tib and fib
Talocrural joint
between talus and tib/fib, “true” ankle joint, synovial uniaxial joint, dorsiflexion and plantar flexion
subtalar jt.
between talus and calcaneus, synovial joint with plane gliding, inversion (away from midline) and eversion (towards midline)
transverse tarsal jt/articulation
between calcaneus and cuboid, talus to navicular as well, divides hindfoot from forefoot, does inversion and eversion as well.
medial collateral ligament of the ankle
(deltoid) really strong ligament, limits eversion (towards midline movement). 3 pronged muscle, connects tibia, talus, and calcaneus
Lateral collateral ligament of the ankle
limits inversion, most common ankle injury is rolled ankle when there is too much inversion on this muscle. 2 pronged muscle, connects fibula, talus, and calcaneus.
retinacula
holds tendons in place, prevents straining, acts like pully system
anterior leg innervation
deep fibular nerve, Ax: dorsiflexion
lateral leg innervation
superficial fibular nerve, Ax: eversion/plantar flexion
