thigh and knee Flashcards
how do the femur and tibia articulate?
-medial femoral condyle articulates with medial tibial condyle
-lateral femoral condyle articulates with lateral tibial condyle
what does the the patella articulate with?
femur
how does the meniscus add stability to the knee?
the meniscus adds more depth in the tibia for the femur to sit in
what tendons/ligaments are superior and inferior to the patella?
quadriceps tendon is superior and patellar tendon/ligament is inferior
4 ligaments that support the knee
anterior and posterior cruciate ligaments
lateral and medial collateral ligaments
*meniscus supports the joint
how do ligaments of the knee resist motion?
by stretching
attachment sites of the knee ligaments
ACL/PCL
-acl= anterior tibia/posterior femur
-pcl=posterior tibia/anterior femur
MCL/LCL
-mcl=femur/tibia
-lcl=femur/fibula
muscles in anterior compartment of upper leg
-iliopsoas
-sartorius
-quadriceps (4 muscles)
muscles in medial compartment of upper leg
*peanut butter leaves me greasy
-pectineus
-adductor brevis
-adductor longus
-adductor magnus
-gracilis
muscles in posterior compartment of upper leg
hamstrings
origin, action, insertion, and innervation of iliopsoas
*this is combo of psoas major and iliacus so it has spinal nerve and femoral nerve innervation
origin
psoas- lumbar vertebra L1-L5
iliacus- iliac fossa
action
trunk- flexion and stabilization
hip- flexion and lateral rotation
insertion
-lesser trochanter of the femur
innervation
psoas- L1-L4 (mainly L2/3)
iliacus- femoral nerve
origin, insertion, innervation, action of quadriceps *note this is 4 muscles
*slide 12 KM ppt
origin
1-rectus femoris= AIIS
2-vastus medialis= linea aspera (medial hip)
3-vastus lateralis= linea aspera (lateral hip)
4-vastus intermedius= anterolateral shaft of the femur
insertion
-tibial tuberosity
innervation
-femoral nerve L2-L4
action
-hip=rectus femoris only; hip flexion
-knee= knee extension
what quad muscle flexes hip? THIS IS THE ONLY ONE THAT DOES THIS OF THE QUADS
rectus femoris *crosses hip
origin, insertion, innervation, action of sartorius
origin- ASIS
insertion- pes anserine *on prox tibia
innervation- femoral nerve
action
- hip=flexion, abduction, and lateral rotation
-knee= flexion
*FIGURE FOUR MUSCLE
*MOST SUPERFICIAL
pectineus
origin-superior pubic ramus
action- hip=weak flexion and adduction
insertion- pectineal line of posterior femur
innervation- obturator and femoral nerve (L2-4)