Ch 9 Flashcards
Fibrous Joint
do not have synovial cavity and the articulating bones are held together with Fibrous Connective Tissue
these allow little to no movement
Cartilaginous Joints
do not have synovial cavity and the articulating bones are connected with cartilage
these allow little to no movement
Synovial Joints
a space called the Synovial Cavity lies between the articulating bones
these are considered to be freely moveable called diarthrosis
Articular Capsule
surround synovial joint from the synovial cavity
outer layer of fibrous capsule: ligament
inner layer is synovial membrane
Synovial Fluid
secreted by the synovial membrane
a viscous fluid that lubricates and nourishes joint surfaces
Accessory ligaments
some joints contain ligaments inside or outside the joint cavity
Meniscus (articular disc)
a pad of fibrocartilage that lies between articulating bones
Bursae (cushions muscle from bone)
tiny, fluid-filled, saclike structure around certain joints that help reduce friction caused by movement.
Tendon Sheaths
a tube-like bursa that wraps around certain tendons
these helps reduce friction where tendons pass through synovial cavities
Flexion
a decrease in the angle between articulating bones.
Extension
an increase in the angle between articulating bones, or restore a body part to the Anatomical position.
Hyperextension
extension beyond anatomical position
Abduction
movement of bone away from the midline
midline for the hand is the middle finger
midline of the foot is 2nd toe
Adduction
movement of bone toward the midline
Circumduction
movement of distal end of a body part in a circle
