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Lower Limb 2 - UNC MS1 Anatomy
Lower Limb 2 - UNC MS1 Anatomy
16
Anatomy
Graduate
11/28/2011

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Cards

Term
the hip joint is deepened by what?
Definition
acetabular labrum
Term
what prevents hyperextension of the hip joint? aka?
Definition
iliofemoral ligament
aka Y ligament of Bigelow
Term
what is the circular hip socket composed of?
Definition
lunate surface surrounded by acetabular labrum; and transverse acetabular ligament
Term
what is the major artery supplying the head of the femur?
Definition
medial circumflex artery (from deep femoral artery)
Term
what are hip fractures? why do they often need hip replacement?
Definition
femur head fractures.
b/c fracture damages retinacular arteries and limit blood supply for bone fusion
Term
what goes out the GSF and in the LSF?
Definition
pudendal nerve and internal pudendal artery
Term
gluteus maximus
Definition
extend and laterally rotate hip/thigh.
innnervated by inferior gluteal nerve (L5, S1, S2)
Term
what contributes to the IT band?
Definition
gluteus maximus and tensor fascia lata
Term
what abducts the hip (4)?
what innervates them?
Definition
gluteus medius, gluteus minimus, TFL and IT band.
innervated by superior gluteal nerve
Term
what causes gluteal gait?
Definition
damage to gluteus medius/minimus or damage to the superior gluteal nerve
Term
what is a positive Trendelenburg test?
Definition
pelvis sags on contralateral side when patient stands on one leg
Term
what are the 5 lateral rotators of the hip?
Definition
obturator internus, superior/inferior gemelli, quadratus femoris, piriformis
Term
what are the 3 hamstring muscles?
supplied by what?
Definition
semitendinosus, semimembranosus, biceps femoris (2 heads).
supplied by perforating branches from the deep or profunda femoral artery
Term
actions and innervation of the hamstrings?
Definition
knee flexion and hip extension
innervated by sciatic nerve (L5, S1-2)
Term
what passes above and below the piriformis as it exits the GSF?
Definition
the superior and inferior gluteal nerve/vessels
Term
what does the sciatic nerve split into?
Definition
tibial nerve and common fibular nerve
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