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Anatomy Joints of Lower Limb
KYCOM Block 4
78
Anatomy
Graduate
12/07/2012

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Term
what type of joint is the hip joint
Definition
synoval ball and socket
Term
what articulates in the hip joint
Definition
head of femur and acetabulum of hip bone
Term
what is hte acetabular notch
Definition
gap in the acetabellum
Term
what s the fibrocartilage rib in the acetabelum
Definition
acetabular labrum
Term
what does the acetabular labrum bridge
Definition
acetabular notch
Term
what strengthens the acetabular notch
Definition
transverse acetabular ligament
Term
what lines the joint capusle of the hip joint
Definition
synovial membrane
Term
what is the strongest ligament in the body
Definition
iliofemoral ligament
Term
what is the shape of the iliofemoral ligament
Definition
Y
Term
what is the iliofemoral ligament attached to
Definition
AIIS to intertrochanteric line
Term
what is the function of the iliofemoral ligament
Definition
prevents overextension of the hip during standing
Term
what is the pubofemoral ligament attached to
Definition
superior ramus of pubis and lower intertrochanteric line
Term
what is the function of the pubofemoral ligament
Definition
limits extension and abduction
Term
what shape is the ischiofemoral ligament
Definition
spiral
Term
what is the ischiofemoral ligament attached to
Definition
body of ischium and greater trochanter
Term
what is the function of the ischiofemoral ligament
Definition
limit extension
Term
what is the ligament of the head of the femur attached to
Definition
head of femur at the fovea capitis and to the transverse acetabular ligament
Term
why is it hard to dislocate the hip joint
Definition
because the intrinsic ligaments are so strong
Term
what is a congenital change that could compormise hip joint
Definition
upper lip of acetabulum may fail to form and head of femur may dislocate rostrally
Term
in what demographic does the femur fracture more in
Definition
elterly women
Term
what does the head and neck of the femur recieve blood from
Definition
branches of obturator a
Term
what anastomosis with the branches of the obturator a at the head of the femur
Definition
medial and lateral femoral circumflex a
Term
in an fracture of the hip joint, what arteries are disturbed
Definition
circumflex or obturator
Term
what happens if the obturator a is disturbed
Definition
avascular necrosis
Term
why would someone need a hip replacement avascular necrosis
Definition
Term
what type of joint is the knee jount
Definition
condyloid, hinge
Term
what articulates in the knee joint
Definition
condyles of the femur and ribia
Term
what bones are involved in the knee joint
Definition
tibia and femur
Term
why does the stability of the knee joint depend on ligaments
Definition
femur only abuts on the tibia
Term
where is teh capsule of the knee joint
Definition
posterior and lateral sides, no anterior
Term
what is the knee joint covered by anteriorly
Definition
patellar ligament and quadriceps tendon
Term
what is a bursae
Definition
bag of synovial fluid that is lined with a synovial membrane
Term
what are the bursae of the knee
Definition
suprapatellar, prepatellar, superificial infrapatellar
Term
what are the bursa of the knee connected to
Definition
synovial sac
Term
what is the suprapatellar bursa
Definition
outpockering of the synovial cavity of the knee
Term
where is the prepatellar burse, what is it made of
Definition
subcutaneous tissue between skiin and patella
Term
where is the superificial infrapatellar bursa
Definition
between skin and patellar ligemnt
Term
what is bursitis
Definition
inflammation of the bursae
Term
what is prepatellar bursitis called
Definition
housemaids knee
Term
what is superificial infrapatellar bursa bursitis called
Definition
clerygmans knee
Term
what are the extracapsular ligaments of the knee
Definition
patellar, lateral (fibular) collateral, medial (tibial) collateral
Term
what is the patellar ligament attached to
Definition
above to patella below to tibial tuberosity
Term
what is the lateral collateral ligament of the knee attached to
Definition
above to lateral condyle of femur and below to head of fibula
Term
what is the function of the lateral collateral ligament
Definition
prevents movement of the tibia medially
Term
what is the medial collateral ligament of the knee attached to
Definition
above to medial condyle of the femur and below to shaft of the tibia. also to medial meniscus
Term
what is the function of the medial collateral ligament of the knee
Definition
prevent movement of the tibia laterally
Term
what is the anterior cruciate ligament attached to
Definition
anterior inercondylar region of the tibia to the medial side of the lateral femoral condyle
Term
what is the function of the anterior cruciate ligament
Definition
prevents movement of the tibia anterior
Term
what is the posterior curciate ligament attaced to
Definition
posterior intercondylar reigon of the tibia to lateral medial femoral condyle
Term
what is the function of the posterior cruciate ligament
Definition
prevents movement of the tibia posterior
Term
what are the intrascapular ligaments of the knee
Definition
anterior cruciate, posterior cruciate,menisci, medial and lateral meniscus
Term
what is a menisci
Definition
c shaped sheet of fibrocartilage that is attached to inner side of the joint capsule
Term
what is the function of the neisci
Definition
deepen surface of tibial condyles and act as shock absorbers
Term
what is the medial meniscus attached to
Definition
medial collateral ligament
Term
compare the medial and lateral meniscus
Definition
the lateral is more moveable
Term
where does the tendon of the popliteus m pass through the knee joint
Definition
between lateral meniscus and lateral collateral ligament
Term
what can happen in forced abduction of the tibia when the leg is flexed, what is this called
Definition
medial (tibial) collateral ligament, anterior cruciate ligament, and medial meniscus can tear, unhappy triad
Term
what links the tibia and fibula
Definition
interosseous membrane, inferior articulation
Term
what passes in the anterior gap of the inferior interosseous membrane in the leg
Definition
anterior tibial a
Term
what do anterior and posterior tibio fibular ligaments joint
Definition
bones together at the ankle
Term
what articulates in the ankle joint
Definition
deep socket formed by lower ends ot the tibia and fibula where the upper talus fits, lower tibia, two melleoli
Term
how does the talus move
Definition
on transverse axis in a hinge like manner
Term
what makes the ankle joint strong and stable
Definition
strength of the ligaments and shape of the bones
Term
what does the inferior transverse tibiofibular ligament attach to
Definition
between lateral malleolus and posterior lower tibia
Term
what is the function of the tibiofibular ligament
Definition
deepend socket where talus fits
Term
what type of joint is the ankle joint
Definition
synovial hinge
Term
where is the capsule of the ankle joint attached
Definition
bones near their articular margins
Term
what innervates the annkle joint
Definition
deep fibular and tibial nerves
Term
what are the ligaments of the ankle joint
Definition
medial or deltoid, lateral,
Term
what is the medial or deltoid ligament attached to
Definition
medial surface of the body of the talus, sustentaculum tali, plantar clacneonavicular ligament, tuberosity of navicular bone
Term
what are the bands of the lateral ligament
Definition
anterior talofibular, calcaneofibular, posterior talofibular
Term
what are sprains of the ankle usually caused by
Definition
excessive inversion, anterior talofibular and calcaneofibular ligaments commonly torn
Term
what movements are the ankle are possible
Definition
dorsiflexion(toes up), plantar flexion (toes down)
Term
what muscles do dorsiflexion
Definition
tibialis anterior, extensor digitorum longus, peroneus tertius
Term
what muscles do plantar flexion
Definition
gastrocnemius, soleus, plantaris, peroneus longus, peroneus brevis, tibialis posterior, flexor digitorum longus, flexor hallucis longus
Term
where doe inversion eversion movements occur
Definition
subtalar joint, transverse tarsal joint
Term
what is the subtalar joint between
Definition
talus and calcaneous
Term
what is the transverse tarsal joint between
Definition
talu and navicular bones medially, calcaneous and cuboid bones laterally
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