Anatomy final Flashcards
Fibular head attachments: (3)
TFL, LCL, bicep femoris
Facets in the patella
5
odd, 2 medial, 2 lateral
Forces on the patella
Medial (VMO, raised lateral facet of the intercondylar groove, medial patellar retinacular fibers) Lateral (IT band, bowstringing force on the patella, lateral patellar retinacular fibers)
Lateral meniscus shape
oval
medial meniscus shape
C
Tibia rotates ____ when it gets close to terminal extension (____ chain)
externally; open chain
Femur rotates ____ when it gets close to terminal extension (____ chain)
internally; closed chain
Femoral artery passes through that the _________ and becomes ______
adductor hiatus ; popliteal artery
Patellar tendon reflex level
L4
Calcaneal tendon reflex level
S1
Hip flexion Knee extension Ankle DF Hip extension Knee flexion Ankle PF (levels)
L1-2 L3-4 L4-5 L5-S2 L5-S2 S1-2
Coxa vara= genu ____
valgum
coxa valga= genu ___
varum
Genu valgum
stretches the MCL and compression of the lateral compartment; pronation of the foot
Genu Varum
compression forces on the medial compartment; stretches the LCL; supination
the only capsular ligament
MCL
Tibia is ___(convex or concave) and ___ increases this
concave; meniscus
Dorsiflexion
EDL, EHL, TA
Plantar flexion
gastro, soleus, plantaris, TP, FDL, FHL, PL, PB
Eversion
EDL, PT, PL, PB
Inversion
EHL, TA, TP
LCL attachments
lateral epicondyle and fibular head
MCL attachments
medial epicondyle and medial surface of the tibia
oblique popliteal ligament is a continuation of the ……
Semimembranosus
ACL attachment
attached to the inner surface of the lateral femoral condyle and the anterior intercondylar area of the tibia
ACL (info)
is taut in full extension; prevents anterior displacement of the tibia
PCL attachment
attached to the inner surface of the medial femoral condyle and the posterior intercondylar area of the tibia
PCL (info)
is taut during flexion; prevents posterior displacement of the tibia
To unlock the knee to permit flexion from the locked position, the femur must rotate ______ on the tibia (or the tibia rotate ______).
laterally; medially
the muscle to aid in the unlocking of knee extension
popliteus
Compare the strength of knee flexion with the ankle dorsiflexed and plantarflexed. Why would you expect a difference?
The gastrocnemius, a knee flexor, is weaker (on slack) with the ankle plantarflexed. This position could be utilized if you wish to test the hamstrings while minimizing the effect of the gastrocnemius.
Test the strength of your partner’s quadriceps in the sitting position. Compare the strength when the hip is flexed (when your partner sits leaning forward) or extended. Why could there be a difference?
With the hip flexed, the rectus femoris is put on slack, and is therefore in a weaker position.
Genu recurvatum increases….
lumbar lordosis
Meniscus
increase the shock absorption
triple the contact surface area
talocrucal joint (artho)
tibia, fibula, and talus
concave tib/fib
convex talus
closed chain pronation
eversion (calcaneus), adduction (talus), plantar flexion (talus), flexion of knee (stable forefoot)
closed chain supination
inversion (calcaneus), abduction (talus), dorsiflexion (talus), extension of knee (stable forefoot)
open chain pronation
eversion (calcaneus), abduction (forefoot), doriflexion (forefoot) (stable talus)
open chain supination
inversion (calcaneus), adduction (forefoot), plantar flexion (forefoot) (stable talus)
pronation and supination are in the ____ axis
oblique
eversion and inversion are in the ___ axis
AP
abduction and adduction are in the ___ axis
vertical
dorsiflexion and plantar flexion are in the ___ axis
ML
forefoot:
the metatarsal, phalanges, and their joints
Midfoot:
the cuneiforms, navicular, cuboids, and transverse tarsal joints
Hindfoot:
talus and calcaneous
lateral ankle sprain (number of ligaments)
1) AFTL
2) CFL
3) PFTL
tibial nerve divides into __________ inferior to the ______
medial and lateral plantar N; medial malleolus
Tarsal tunnel
tibial N, posterior artery, FDL, FHL, TP; beneath the flexor retinaculum posterior to the medial malleolus
Hallux Valgus
Bunion
displacement of the 1st MTP join by the displacement of the flexor and extensor tendors
Great saphenous vein (N)
Saphenous N
Small saphenous vein (N)
sural N, cutaneous branch of tibial N and common peroneal N
anterior tibial artery (N)
deep peroneal N
posterior tibial artery (N)
tibial N
Hallux limitus
less than functional great toe ext
hallux rigidius
less than 10* of great toe extension
pes plantus (2 types)
rigid or flexible
pes plantus- rigid
always present (non-weight bearing and weight bearing)
pes plantus- flexible
deformity will change; is present in weight bearing, but not in non-weight bearing
What nerve supplies the skin over the dorsum of the foot?
Superficial peroneal N
What nerve innervates the muscles in the posterior compartment of the leg?
Tibial N
What is the nerve that extends the toes?
Deep Peroneal N
What nerve supplies the muscles in the lateral compartment of the leg
Superficial Peroneal N
A0 and A1 (artho)
A0 is convex on a A1 concave