Day 5 Flashcards
Which theory of joint lubrication implies water loss from the synovial fluid increases viscosity of the remaining synovial fluid
boosted theory
Which theory of joint lubrication implies a loss of fluid from the cartilage into the joint space during compression results in increased viscosity of the synovial fluid?
weeping theory
Which theory of joint lubrication implies an ADSORPTION of lubricant onto cartilage surfaces is responsible for the low-friction observed during movement?
boundary theory
What are the properties of synovial fluid?
it is yellow-white, viscous, slightly alkaline and tastes salty
Synovial fluid consists of what specific chemical groups?
fats, salts, albumins and hyaluronate
What substance of synovial fluid has been proposed to be responsible for its viscosity and lubricating behavior?
lubricin
What is the function of synovial fluid?
provides a nutritive source for articular cartilage and supple the lubricant for the cartilage surface
What is the simple synovial joint (diarthrosis)?
only one pair of articulating surfaces are observed
What is a compound synovial joint (diarthrosis)?
more than two articulating surfaces are preset in the same synovial joint
What is a complex synovial joint (diarthrosis)?
within the simple joint or the compound joint, the articulating surfaces are separated by an articular disc (intra-articular disc) or meniscus
What morphological classification of synovial joints is classified as nonaxial?
plane (diarthrosis arthrodial)
What morphological classifications of synovial joints would be classified as uniaxial?
hinge (diarthrosis ginglymus) and pivot (diarthrosis trochoid)
What morphological classifications of synovial joints would be classified as biaxial?
(diarthrosis) bicondylar, (diarthrosis) condylar, (diarthrosis) ellipsoidal and saddle (diarthrosis sellar)
What morphological classification of synovial joints would be classified as multiaxial?
ball and socket (diarthrosis enarthrosis), (diarthrosis spheroidal), (diarthrosis cotyloid) are all classifications given to the same type of joint
What are examples of synovial plane (diarthrosis arthrodial) joints?
most zygapophyses of the vertebral column
intercarpal, carpometacarpal and intermetacarpal joints of the hand intercuneiform, tarsometatarsal and intermetatarsal joints of the foot
