Basic Functional Anatomy
Knee Joint: Tibiofemoral
Largest joint in the body powerful muscles and strong ligaments Hinge joint: 1 axis of rotation, flexion and extension
Bones of the fibula
Lateral side of the lower leg Does not articulate with the femur or patella Is NOT apart of the
Vastus Lateralis
O: Linea Aspera I: Tibial tuberosity via patellar tendon A:Knee Extension
Biceps Femoris
O: long head: ischial tuberosity.// short head: lateral tip of linea aspera I: Fibular Head A: Long Head: hip extension and knee flexion. //Short head: knee flexion
GASTROCNEMIUS
O: medial lateral condyles of femur I: A:
Vastus Medialis
O:Linea Aspera I: Tibial Tuberosity via patellar tendon A: Knee Joint
The patella
Sesamoid Bone Embedded in quadriceps and patellar tendon Serves as a PULLEY
Patellofemoral joint
gliding of patella on femoral condyles
Pes Anserine- AM tibia
SGT: *S*AY *G*RACE BEFORE *T*EA *S*ARTORIUS *G*RACILIS *T*SEMITENINOSIS
Bony landmarks of the patella
the cartilage can wear away over time' get the rest fromPower Point Poles: superior and inferior Borders:medial and lateral
Bursa
absorb shock, reduce friction 10+ bursa surrounding the knee
Bony landmarks of the femur
Condyles Patellar surface Linea aspera
Knee Joint Bony Structures
Femoral Condyles Tibial Plateaus: medial side bears most of the weight
Semitendinosis
O: Ischial Tuberosity I: Anteriomedial Surface A: Extend hip and flex knee
Rectus Femoris
O: AIIS > Anterior Inferior Iliac Spine I: Tibial tuberosity via patellar tendon A: Hip flexion and knee extension
Vastus Intermedius
O: Anterior Femur I: Tibial Tuberosity via patellar tendon A: Knee Extension
Bony landmarks of the tibia
Tibial tuberosity medial/lateral condyles tibial crest tibial plateaus pes anserine
Cruciate Ligaments: knee
anterior (ACL) prevents ___ from moving anteriorly and posterior (PCL) cross within the knee
knee joint
static stabilitY; ligaments...staying still, no contractile properties dynamic stability: muscles (quads/hamstrings) Articular cartilages on the surface of the femur and tibia Menisci form cushions between bones -attached to tibia, deepen tibial fossa - enhance stability
