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The flashcards below were created by user
shmvii
on FreezingBlue Flashcards.
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convex/cavity of 1st MCP joint
- flex/ext: concave on convex
- abd/add: convex on concave
- (for 2-5 it's all concave on convex)
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femoral head is oriented which way
sup ant med
-
angle of inclination norms
- 115-125
- coxa valga is > 125
- vara is < 115
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acetabulum faces which ways
inf ant lat
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iliofemoral lig from where to where
aka
- AIIS to intertrochanteric line
- Y lig
- lig or Bigelo
-
bands of iliofemoral / Y / lig of bigelow
- medial: AIIS to distal intertrochangeric line
- lat: AIIS to prox intertrochanteric line
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iliofemoral lig does what?
- limits ext and ER
- lat band limits add
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ischiofemoral lig
where to where
limits what
- ischium, post acetabumulum --> greater troch
- IR, abd, ext (ext bc it attaches so high that in ext it would be pulled forward)
-
zona orbicularis
lig around the femoral neck, helping hodl the head of femur in the acetabulum
-
ischiofemoral bursa is located where
can cause what pain pattern
- btwn IT and glut max
- pain in sciatic distributino
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deep trochanteric bursa may hurt when? located where?
- flexion and IR
- btwn post lat greater troch and glut max
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which arteries supply prox femur
med and lat femoral circumflex
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femoral head gets blood from where?
foveal artery, which is a branch of the obturator artery
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acetabulum gets blood from where?
sup and inf gluteal arteries
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MCL taut/slack when?
prevents what? gives stability against what?
- taut in ext
- slack in flex
- prevents ER
- stability against valgus
- (runs in same dire as ACL)
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LCL taut/slack when? prevents what? stability against what?
- taut in ext
- slack in flex
- prevents ER
- stabil against varus
- (runs in same dir as PCL)
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arcuate popliteal lig from where to where?
role?
- Y shaped (w med and lat bands)
- med band: post border of intercondylar area of tibia
- lat band: lat epicondyle of femur --> fib head
- strenghtens posterolat capsule
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oblique popliteal lig
where to where? does what?
- lat post inf femur -->tendon from semimembranosus
- strengthen post medial capsule
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meniscopatellar lig
where
does what
- inferolat edges of patella --> lat borders of each meniscus
- pulls menisci forward with extension
-
alar fold (knee)
- from lat patella to med and lat fem condyles
- keeps patella in contact w femur
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infrapatellar fold - what is it for?
limits compression bc it's compressed by patella tendon in full flex
-
structures attaching to the med meniscus
- MCL
- fibrous capsule
- semimembranosus
- medial meniscopatellar lig
-
structures attatching to the lateral meniscus
- popliteus muscle
- lat meniscopatellar lig
- meniscofemoral lig
- (not the LCL or lateral capsule)
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motion of menisci - they follow which bone when?
- follow tibia w flex/ext
- follow femur w IR/ER
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fibula rotation in PF/DF
- PF -- IR
- DF -- ER (fib glides sup and post)
-
spring ligament
- plantar calcaneonavicular lig
- sustentaculum tali --> navic
- supports head of talus
- helps maintain medial longitudinal arch
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windlass effect
tightening of plantar fascia via toe ext --> supination of calcaneus and inversion of subtalar jt --> rigid lever for push off
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tibial rotation in PF/DF
- PF - ER as it glides post on talus
- DF - IR as it glides ant on talus
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open chain inversion - how does the calcaneus move on the talus?
add, sup, PF
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closed chain inversion - movmnt of calc and talus?
- sup of calc
- talus glides lat w abd and DF
- tibia does ER
- (reverse for eversion, w tibia doing IR)
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