Exam 2 Flashcards
Chapter 8
areas where 2 or more joints meet
joint
2 functions of joints and articulations
skeletal mobility and hold skeleton together
fibrous, cartilaginous, synovial
structural
synarthrotic, amphiarthrotic, diarthrotic
functional
largest, most complex joint in body
knee joint
what joint puts the patella and lower femur together
femoropatellar joint
lateral and medial joints= formoral condyles and menisci
tibiofemoral
3 broad ligaments in the knee anchor
patella to tibia
patellar ligament to
tibial tuberosity
medial and lateral patellar retinacula keep
patella centered
what is a modified hinge joint
knee joint
the knee join is prefominantly supproted by
soft tissues with minimal strucutural support
joint reinforcement by 4 ligaments are
extracapsular and intracapsular
collateral
extracapsular
cruciate
intracapsular
connects tibia to femur on medial knee attached to medial meniscus
medial collateral ligament
connects fibula to femur on lateral knee
lateral collateral ligament
connects anterior tibia to posterior femur
anterior cruciate ligament
connects posterior tibia to mid femur
posterior cruciate ligament
unable to prevent forward movement of tibia on femur
acl check= drawer sign
click sound when extend leg. severe damage= torn caritlage can between be between articulating tibia and femur surfaces and knee locks in partial flexion
torn meniscus
knee anterior movement/ hyperextended
acl tear
knee posterior movement
pcl tear
how to fix knee injury
surgery with cadaver or artificial ligament
lateral force. knee bends in, tearing opposite side of joint. acl, mcl, medial meniscus
unhappy triad
flattened sacs, lined by synovial membrane, prevents friction
bursa
fibrocartialge, separates articulating bone surfaces, subdivides synovial cavity
meniscus
elongated bursa, crowded tendons. wraps around tendon, prevents xs friction
tendon sheath
unite bones and direct movement. prevent xs movement
ligaments
keeps tendons taut and stabilizes. low contractile activity in relaxed muscles
muscle tone
torn or stretched Ligaments that reinforce joint (Ankle), Pain & Swelling
Partial tear self repair. Slow to heal, due to Poor Vascularization.
sprain
Pulled Muscle. Injury to Muscle / Tendon via Stretch or Overexertion.
strain
Joint out of Socket, Inflammation. Need to Reduce. Splint or Cast.
dislocation
Inflammation of Bursa. Due to Overuse or Injury.
bursitis