Lecture 18-19 final review Flashcards
what are the muscles that move the thigh only?
iliopsoas muscle Gluteal group 1)gluteus maximus 2)gluteus medius 3)gluteus minimus Tensor fasciae latae Lateral rotator Adductor muscle group 1)brevis 2)longis 3)magnus pectineus gracillis
Flexors of the thigh and hip:
what group is responsible for this?
Iliopsoas group
- psoas major
- iliacus
The psoas major also move lumbar spine… But which way?
it will move lumbar into flexion
helps up move pelvis forward
Gluteal muscles:
what does the Gluteus maximus do?
extends, lateral rotation, abduction (upper fibers)
Gluteal muscles:
what does the gluteus medius do?
abduction, med. rotation
Gluteal muscles:
what does the gluteus minimus do?
abduction (med. rotation)
What else can the gluteus maxinus be used for?
used to stabilize the knee when the leg is extended at the knee (standing on one leg)
what are the lateral rotator muscles?
piriformis superior gemellus obturator internus inferior gemellus quardatus femoris
Lateral rotator group
what are the 6 external rotators?
obturator muscles - externus and internus piriformis muscle gemelli muscle -superior and inferior quadratus femoris muscle
*also gluteus maximus
What are the adductors of the thigh?
Adductor brevis Adductor longus Adductor Magnus pectineus m Gracilis
what are extensors of the thigh at hip?
Hamstring muscle group
- biceps gemoris muscle
- semitendinosus muscle
- semimembranosus muscle
the hamstring muscle group does what?
flexors of the knee
what are the extensors of the knee?
rectus femoris
vastus latralis
vastus medialis
of the quadriceps and anterior thigh muscles which one influences the hip?
gracilis
what thigh adductor muscle also affects the movement of the knee?
gracilis
what are four supporting structures for the knee?
menisci
ligaments
muscle tendons
bursae
what does the menisci of the knee do?
stability and absorbs shock
what are the ligaments of the knee joint?
collateral ligaments
cruciate ligaments
what does that collateral ligaments do?
in what position is it the most tight?
provides lateral and medial stability
extension at knee
slack when joint is in partial flexion
how are the cruciate ligaments named?
according to where they are attached to the tibia
What position is the posterior Cruciates ligaments most tight?
pulled tight when knee is fully flexed
a little slack when joint in extension
When is the anterior cruciate ligaments most tight?
pulled tight when knee is fully extended
and a little slack when joint is flexed
what does the popliteal ligaments do?
provide posterior reinforcement
medial rotation of tibia and lateral rotation of femur
what do you need the popliteal muscle for?
to initiate slight medial rotation of tibia to unlock knee joint
