Muscles (thigh at hip joint, movement at leg/knee, ankle, foot, and toes) and Lab Quiz Flashcards
What muscles move the thigh at the hip joint?
gluteus maximus, gluteus medius, tensor fasciae latae, adductors, iliacus, psoas major, gracilis, satorius
Gluteus Maximus
A: extensor and lateral rotator of femur
O: lateral surface of ilium + sacrum + coccyx
I: iliotibial tracts, gluteal tuberosity of femur
Gluteus Medius
A: ABDuction and medial rotation of femur
O: lateral surface of ilium
I: greater trochanter of femur, lateral surface
Tensor Fasciae latae
A: flexes thigh
O: iliac crest
I: iliotibial tract
Adductor Longus
A: adducts, flexes, and medially rotates femur
O: between pubic rami near symphsis
I: middle third of linea aspera
Adductor Magnus
A: adduction and flexion of thigh
O:pubic. arch and ischial tuberosity
I: linea aspera and adductor tubercle
Iliacus
A: flexes thigh and laterally rotates femur
O: Iliac fossa
I: lesser trochanter of femur w/psoas major
Psoas Major
A: flexion of thigh
O: transverse processes of bodies of lumbar vertebrae
I: lesser trochanter of femur q/illiacus
Gracilis
A: adducts, flexes, and medially rotates tibia
O: inferior pubis near symphysis
I: upper portion of tibia
Sartorius
A: flexes both femur and tibia (knee)
O: anterior superior iliac spine
I: medial margin of tibial tuberosity
Name the muscle that originates on the inferior ramus of the pubis and inserts on the medial surface of tibia, inferior to medial condyle.
gracilis
Which of the following muscles cause adduction of the leg at the hip? (select two muscles)
adductor (group), and gracilis
Muscles that move the leg at the knee?
biceps femoris, semimembranosus, semitendinosus, rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius
Biceps femoris
A: extends femur and flexes leg
O: LH- ischial tuberosity
SH- later supercondyle ridge of femur
I: head of fibula and lateral condyle of tibia
Semimembranosus
A: extends femur and flexes leg
O: ischial tuberosity
I: medial condyle of tibia
Semitendinosus
A: extends femur and flexes leg
O: ischial tuberosity
I: medial condyle of tibia
Rectus Femoris
A: extends tibia and flexes femur
O: anterior inferior iliac spine and upper margin of acetebellum
I: tibial tuberosity
Vastus lateralis
A: extension of leg
O: intertrochantic line and linea aspera of femur
I: tibial tuberosity
Vastus medialis
A: extends tibia
O: intertrochantic line and linea aspera of femur
I: tibial tuberosity
Vastus intermedius
A: extends tibia
O: upper shaft of femur
I: tibial tuberosity
what muscles have origins that are the ischial tuberosity?
biceps femoris, semimembranosus, and semitendinosus
what muscles have insertions at the tibial tuberosity?
rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis
is the vastus intermedius deep or superficial to the rectus femoris?
deep
The quadricep muscles all perform _______________ at the knee and the insertion for these muscles is the ________________.
extension and tibial tuberosity
what muslces move the ankle, foot, and toes?
gastrocnemius, soleus, flexor digitorum longus, fibularis longus, tibialis anterior, and extensor digitorum longus
Gastrocnemius
A: plantar flexion of foot
O: LH- lateral condyle of femur
MH- popliteal surface of femur
I: calcaneus
Soleus
A: plantar flexion of foot
O: head of fibula; posterior surface of fibula, medial aspect of tibia
I: calcaneus by the calcaneal (Achilles tendon)
Flexor Digitorum Longus
A: plantar flexion, flexion of toes
O: upper 2/3 of fibula and intermuscular space
I: plantar base of first metatarsal and first cuneiform
Tibialis Anterior
A: dorsiflexes and inverts foot
O: upper half of tibia + interrosseous
I: base of first cuneiform
Extensor digitorum longus
A: dorsiflexes foot
O: tibia, proximal 3/4 of fibula and interosseous
I: tendons of middle + terminal phalanges of 4 lateral toes by extensor expansion
which muscles plantar flexes the foot?
gastrocnemius, soleus, flexor digitorum longus, and fibularis longus
which muscles dorsiflexes the foot?
tibialis anterior, and extensor digitorum longus
