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55 Cards in this Set

  • Front
  • Back
What encases the muscles of the thigh?
fascia lata
What divides the 3 compartments of the thigh?
intermuscular septae
What is the function of the anterior compartment of the thigh? What nerve innervates it?
flex thigh, extend leg
femoral nerve L2,3,4
What is the function of the posterior compartment of the thigh? What nerve innervates it? Artery?
extend thigh, flex leg
sciatic N L4,5,S1,2,3 (mostly tibial N, also common fibular)
profundus femorus artery
What is the function of the medial compartment? What nerve innervates it? Artery?
adduct thigh
obturator N L2,3,4
profunda femorus artery
What composes the os coxae? When do these bones start to fuse? When is fusion complete?
ileum, ischium, pubis
15-17 yr
20-25 yr
Posteriorly, what does the hip bone articulate with? What is this joint called?
sacrum
sacroiliac joint
What ligaments help reinforce the sacroiliac joints?
interosseous and sacroiliac ligaments
Anteriorly the hip bone and sacrum are joined where?
pubic symphysis
What are the important ligaments in the gluteal region?
sacroiliac, sacrotuberous, and sacrospinous ligaments
Which ligaments help stabilize the sacrum?
sacrotuberous and sacrospinous ligaments
What does the sacrotuberous ligament run between?
sacrum and isial tuberosity
What does the sacrospinous ligament run between?
sacrum and iscial spine
Which direction is the neck of the femus turned? What is it called when the angle deviates less? more
medially at 126 degrees
less-coxa vara
more-coxa valga
What is the origin and insertion of the muscles of the gluteal region?
o-external suface of pelvis
i-on femur
What innervates the muscles of the gluteal region?
superior and inferior gluteal nerves and other small, direct branches from the sacral plexus
What is the action of the gluteus maximus?
extend and laterally rotate thigh, as when climbin stairs
Which nerve innervates the gluteus maximus?
inferior gluteal N L5,S1,2
What is the origin and insertion of the gluteus maximus?
o-external ilium, dorsal sacrum & coccyx as well as sacrotuberous ligament
i-iliotibial tract and gluteal tuberosity of femur
What is the action of the tensor fascia lata?
locks knee
What is the origin and insertion of the tensor fascia lata?
o-iliac crest
i-iliotibial tract
Does the tensor fascia lata insert on the medial or lateral side of the tibia?
lateral
What is the iliotibial tract?
flattened tendon that is fused w/ the fascia lata on the lateral side of the tibia
Which nerve innervates the tensor fascia lata?
superior gluteal N L4,5
Which muscles are in the superficial layer of the gluteal region?
gluteus maximus and tensor fascia lata
Which muscles of the gluteal region are in the middle layer?
gluteus medius
What is the origin and insertion of the gluteus medius?
o-external surface of ileum between anterior and posterior iliac lines
i-crainial surface of greater trochanter
Which nerve innervates the gluteus medius?
superior gluteal N L5,S1
What is the action of the gluteus medius?
abduct and medially rotate thigh, steady pelvis during walking
Which muscles of the gluteal region are in the deep layer?
gluteus minimus and piriformis
What action is shared by all muscles in the deep layer of the gluteal region?
abduction
Which of the muscles in the deep layer of the gluteal region is responsible for medially rotating the thigh? laterally rotating?
gluteus minimus-medial
piriformis-lateral
What is the origin and insertion of the gluteus minimus?
o-external ilium between anterior and inferior gluteal lines
i-greater trochanter
What is th eorigin and insertion of the piriformis?
o-anterior sacrum & sacrotuberous ligament
i-greater trochanter
Which nerve innervates the gluteus minimus?
superior gluteal N L5,S1
Which nerve innervates the piriformis?
N to piriformis S1,2
Name the lateral rotators of the femur.
gemelli (superior & inferior)
obturator internus
quadratus femoris
What is the origin and insertion of the superior and inferior gemelli?
o-ischial spines & tuberosity
i-greater trochanter
Which of the lateral rotators of the femur also supply some abduction?
gemelli (superior & inferior) and obturator internus
What innervates the gemelli (superior & inferior)?
N to obturator internus and quadratus femoris (L5,S1)
What is the origin and insertion of the obturator internus?
o-inner surface of obturator membrane
i-greater trochanter
What innervates the obturator internus? quadratus femoris? Which spinal nerves do these come from?
N to obturator internus
N to quadratus femoris
L5,S1
What is the origin and insertion of the quadratus femoris?
o-ischial tuberosit
i-intertrochanteric crest
Name the muscles of the posterior thigh.
biceps femoris long & short head, semitendinosus, semimembranosus
Which of the posterior thigh muscles are innervated by the tibial nerve? Which spinal nerves is this?
biceps femoris long head, emitendinosus, semimembranosus
L5,S1,S2
What action do all the muscles of the posterior thigh share?
flex leg
What is the action of the muscles of the posterior thigh that are innervated by the tibial nerve?
extend thigh and flex leg
Which muscle of the posterior thigh does not help to extend the thigh? What is this muscle innervated by?
biceps femoris short head
common preoneal N L5,S1,2
What is the insertion point of the biceps femoris? Where does each originate from?
i-fibula
long head-ischial tuberosity
short-distal 1/2 of linea aspera
What is the origin and insertion of the semitendinosus? Which other muscles of the posterior thigh share this same origin?
o-ischial tuberosity
i-upper-medial tibia
biceps femoris long head and semimembranosus also orginate from ischial tuberosity
What is the insertion point for the semimembranosus?
medial/posterior tibia
Does the semitendinosus end as a narrow or wide tendon? semimembranosus?
semitendinosus-narrow
semimembranosus-wide
Why is the biceps femoris short head only able to flex the knee and not extend the thigh?
it only crosses the knee joint
How can the short head of the biceps femoris be tested?
have the patient flex his/her leg against resistane and palpate the hamstring tendons on either side of the popliteal fossa
On which side of the knee can the biceps femoris long head be palpated?
lateral side