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PTA 101 Muscles #3
PTA 101 Muscles
52
Medical
Undergraduate 1
12/06/2009

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Term
gluteus maximus origin
Definition
iliac crest, sacrum, coccyx & aponeurosis of erector spinae
Term
gluteus maximus insertion
Definition
iliotibial tract & gluteal tuberosity of femur
Term
gluteus maximus function
Definition
hip extension, hip external rotation
Term
gluteus maximus innervation
Definition
inferior gluteal n.
Term
gluteus medius origin
Definition
ilium bet. anterior & posterior gluteal lines
Term
gluteus medius insertion
Definition
femoral greater trochanter
Term
gluteus medius function
Definition
all fibers: hip adduction; ant. fibers: int. rot. & adduction; post. fibers: ext. rot. & abduction
Term
gluteus medius innervation
Definition
superior gluteal n.
Term
semimembranosus origin
Definition
ischial tuberosity
Term
semimembranosus insertion
Definition
medial condyle of tibia
Term
semimembranosus function
Definition
hip extension, knee flexion, int. rotation of tibia (involuntary)
Term
semimembranosus innervation
Definition
tibial n. (sciatic n.)
Term
semitendinosus origin
Definition
ischial tuberosity
Term
semitendinosus insertion
Definition
proximal, medial surface of tibial shaft
Term
semitendinosus function
Definition
hip extension, knee flexion, int. rot. tibia (involuntary)
Term
semitendinosus innervation
Definition
tibial n. (sciatic n.)
Term
biceps femoris origin
Definition
long head: ischial tuberosity; short head: linea aspera of femur
Term
biceps femoris insertion
Definition
head of fibula
Term
biceps femoris function
Definition
hip extension, knee flexion, ext. rot. of tibia (involuntary)
Term
biceps femoris innervation
Definition
tibial & common fibular (perineal) n. (sciatic n.)
Term
rectus femoris origin
Definition
anterior, inferior iliac spine
Term
rectus femoris insertion
Definition
tibial tuberosity via patellar ligament
Term
rectus femoris function
Definition
flex hip, ext. knee
Term
rectus femoris innervation
Definition
femoral n.
Term
vastus lateralis origin
Definition
greater trochanter & linea aspera of femur
Term
vastus lateralis insertion
Definition
tibial tuberosity via patellar ligament
Term
vastus lateralis innervation
Definition
femoral n.
Term
vastus medialis origin
Definition
linea aspera of femur
Term
vastus medialis insertion
Definition
tibial tuberosity via patellar ligament
Term
vastus lateralis function
Definition
knee ext.
Term
vastus medialis innervation
Definition
femoral n.
Term
vastus intermedius origin
Definition
anterior & lateral surfaces of femur
Term
vastus intermedius insertion
Definition
tibial tuberosity via patellar ligament
Term
vastus intermedius function
Definition
knee ext.
Term
vastus intermedius innervation
Definition
femoral n.
Term
peroneus longus origin
Definition
head & body of fibula & lat. condyle of tibia
Term
peroneus longus insertion
Definition
1st metatarsal & 1st cuneform
Term
peroneus longus function
Definition
plantar flexion & foot eversion
Term
peroneus longus innervation
Definition
superficial fibular nerve
Term
peroneus brevis origin
Definition
body of fibula
Term
peroneus brevus insertion
Definition
base of 5th metatarsal
Term
peroneus brevus function
Definition
plantar flexion, foot eversion
Term
peroneus brevus innervation
Definition
superficial peroneal n.
Term
peroneus tertius origin
Definition
body of fibula, interosseous membrane
Term
peroneus tertius insertion
Definition
base of 5th metatarsal (dorsal)
Term
peroneus tertius function
Definition
dorsiflex & evert foot
Term
peroneus tertius innervation
Definition
deep pereoneal n
Term
tibialis anterior origin
Definition
lateral condyle & body of timbia, interosseous membrane
Term
tibialis anterior insertion
Definition
1st metatarsal
Term
tibialis anterior function
Definition
dorsiflex & inversion of foot
Term
tibialis anterior function
Definition
dorsiflex & invert foot
Term
tibialis anterior innervation
Definition
deep fibular n.
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