Synovial Joints Quiz Flashcards
What are synovial joints?
Those in which the articulating bone ends are separated by a joint
- containing synovial fluid
What are synovial bone ends separated by?
Synovial fluid
How do synovial joints move?
All are freely moveable
How many distinguishing features doe synovial joints have?
Four
What is articulating cartilage (synovial joints)? (What does it cover)
A type of cartilage that covers the ends of the bones forming the joint
What are fibrous articular capsules? (synovial joints)
The joint surfaces are enclosed by a sleeve or capsule of fibrous connective tissue
What is the fibrous articular capsule lined with? (2)
- The capsule is lined with a smooth synovial membrane
- The reason these joints are called synovial joints
What are bursae?
Flattened fibrous sacs
- lined with synovial membrane and containing a thin film of synovial fluid
What are bursae lined with and what do they contain? (2)
- Lined with synovial membrane
- Containing a thin film of synovial fluid
Where are bursae commonly found?
Common where ligaments, muscles, skin, tendons, or bones rub together
What type of movement does a plane joint have?
Movement is a gliding or slipping movement
What kind of articulating surfaces do plane joints have?
The articulating surfaces are flat
What kind of movements do plane joints have?
Nonaxiel
What is a nonaxiel movement?
Gliding doesn’t involve rotation around any axis
Where is a plane joint / nonaxiel movement found?
Intercarpal joints of the wrist
- Ankle
What is a hinge joint?
Where the cylindrical end of one bone fits into a trough-shaped surface of another bone
What kind of movement do hinge joints have?
Angular movement
What is an angular movement?
Allowed in just one plane, like a mechanical hinge
Where is a hinge joint / angular movement found? (3)
Elbow joint
Ankle joint
Joint between phalanges of fingers
What is a pivot joint?
The rounded end of the bone fits into a sleeve or ring of bone (and possible ligaments)
What kind of movement do pivot joints have?
Uniaxiel
What is a uniaxial movement?
Rotating bone can only turn around its long axis
Where is pivot joint / uniaxial movement found? (3)
- Joints between atlas
- Dens of the axis
- Ulna and radius bones that rotate your forearm
What does condyloid mean?
Means knuckle-like
