Posterior thigh & gluteal region Flashcards
What 4 muscles make up the posterior thigh
biceps femoris
semitendenous
semimembranous
adductor magnus- only hamstring portion
what part of adductor magus is part of the posterior thigh
the hamstring portion
true/false
muslces of gluteal region are not contained in a fasica
true
how many heads does biceps femoris have
2 heads
long head
short head
what muscle of the posterior thigh is more lateral
biceps femoris
what is the origin of biceps femoris
isheal tuberosity
what is the insertion of biecps femoris
the head of the tibia
whats the action of the long head of biceps femoris
extend hip and flex the knee
whats the action of short head of biceps femoris
flex the knee only
what nerves innervated the biceps femoris muscles
sciatic nerve
whats the name of the muslce that lies immediatly medial to biceps femoris
semitendenous
whats the name of the muscle in the posterior thigh that is tendon shaped
semitendenous
what is the orgin of the semitendenous muscle
the isheal tuberocity
whats the insertion of the semitendenous muscle
the medial side of the head of the tibia
whats the action of the semitendenous muscle
extend thigh at hip and flex knee
what nerve innervates the semitendenous muscle
sciatic nerve
what muscle lies underneath semitendenous
semimembranous
whats the name of the muscle that is flattened, broad and located in the posterior thigh
semimembranous
whats the origin of semimembranous
isheal tuberosity but further up than semitendenous
whats the insertion of semimembranous
medial tibial condyle
whats the actions of semimembranous
flexes leg at knee and extend thigh
what nerve innervates the semimembranous muscle
sciatic nerve
what are the names of the 3 gluteal muscle
gluteal maximum
gluteal medius
gluteal minimus
which is the largest and most superficial gluteal muscle
gluteus maximus
what are the origins of gluteal maximus
posterior aspect of sacrum
iliac crest
sacrotuberous ligament
where does the gluteus maximus muscle insert
runs down the length of the hamstring towards the popliteal foss
What nerve innervates the gluteal maximus muscle
inferior gluteal nerve
whats the name of the muscle that lies between gluteal maximus and minimus
gluteal medius
whats the orgin of gluteal medius
posterior surface of ilium
where does the gluteal medius muscle insert
greater trochanter
what nerve innervates the gluteal medius muscle
the superior gluteal nerve
whats the name of the gluteal muscle thats the most smallest and deepest
gluteal minimus
whats the origin of the gluteal minimus muscle
ilium
where does the gluteal minimus muscle insert
anterior side of the greater trochanter
what nerve innervates the gluteal minimus muscle
superior gluteal nerve
what is the boney prominence of the gluteal region
the isheal tuberosity
whats the name of the ligament that connects the spine to the ishium
the sacrospinous ligament
what runs through the greater sciatic foramen
the sciatic nerve and the piriformis muscle
what is the name of the muscle that is immediately above the sciatic nerve in the gluteal region
the piriformis muscle
whats the origin of the piriformis muscle
the anterior sacrum
whats the insertion of the piriformis muscle
greater trochanter of femur
whats the name of the muscle that is square in shape
quadratus femoris
what muscle is located below the gemilli muscle and obturator internus muscle
quadratus femori
whats the name of the muscle that has 2 triangular muscles and is separated by obturator internus tendon
gemelli superior and inferior
whats the popliteal fossa
the diamond shaped area located on the posterior aspect of the thigh
what forms the diamond shape of the popliteal fossa
the hamstring muscles that insert lateral and medial to the popliteal fossa
semimembranous
semitendenous
biceps femoris
what does the sciatic nerve supply
all posterior compartment of the thigh and muscles below the knee
what does the popliteal fossa contain running through it
popliteal vein, artery, tibial nerve and common fibular nerve
how does the artrey, vein and sciatic nerve enter the popliteal fossa
via the adductor canal
whats the name of the vessel that enters the popliteal fossa and drains into the popliteal vein
the short saphenous vein
what causes sciatic
prolapse of the intervertebral foramina that compresses the sciatic nerve
what nerve root does the sciatic nerve arise from
L5-S4
where is referred pain in sciatica felt
down the skin of the thigh, leg and foot
what is the best location for IM injection on the gluteal regions and why
RUQ
has lots of muscle
good absorption
what nerve is susceptible to compression in a popliteal aneurysm
tibial nerve
what symptoms will a patient present with due to compression of the tibial nerve due to a popliteal aneurysm
paraesthesia of foot
weakened/absent plantar flexion
what sign will be present due to weakened gluteal muscle
trendelenberg sign
what is + trendelenberg sign
pelvic drop when patient stand on unsupported leg without assistance
