Patella & Short Hip Lateral Rotators Flashcards
Distal attachment of piriformis
Greater trochanter (posteromedial)
Proximal attachment of piriformis
Anterior sacrum through. Greater sciatic notch
Actions of the piriformis
Abduction (60 degrees) and lateral/medial (60+ degrees) rotation
Proximal attachment of obturator internus
Obturator foramen
Distal attachment of obturator internus
Greater trochanter (posteromedial)
Proximal attachment of gemellus superior
Ischeal spine
Distal attachment of gemellus superior
Greater trochanter (posteromedial)
Distal attachment of gemellus inferior
Greater trochanter (posteromedial)
6 short hip lateral rotators
- Piriformis
- Obturator internus
- Obturator externus
- Gemellus superior
- Gemellus inferior
- Quadratus femoris
Proximal attachment of quadratus femoris
Lateral ischial tuberosity
Distal attachment of quadratus femoris
Intertrochanteric crest
Action of quadratus femoris
Lateral rotation
Proximal attachment of obturator externus
Obturator foramen (outer margin)
Distal attachment of obturator externus
Greater trochanter (posteromedial)
Bone embedded in/enveloped by a tendon
Sesamoid
Where is patella embedded?
In rectus femoris
Primary weight-bearing bone of leg
Tibia
Fibula carries how much of body weight?
~1/6
Apex of fibula aka
Styloid process
Lateral projection of ankle
Lateral malleolus
Medial condyle aka
Medial tibial plateau
Gerdy’s tubercle aka
Lateral tibial tubercle
Attachment point for the soleus muscle
Soleus line
3 articulations of knee
- Lateral tibial condyle with lateral femoral condyle
- Medial tibial condyle with medial femoral condyle
- Patella with femur
Close-packed position of knee
Extension
Loose-packed position of knee
Flexion
What kind of joint is tibiofemoral?
Synovial modified hinge