Lecture 11: Movement of Synovial joints Flashcards
What is the structure & function of the joint capsule
The capsule forms a complete casing around the ends of bones - binds them together.
DTCT - continuation of the peroisteum
The amount of interaction btw bone surfaces at a joint is called:
bony congruence
The shape of the bone ends influences:
Range of movement (ROM)
Bone ends are covered with:
Articular/Hyaline cartilage
What is the function of articular cartilage?
Creates smooth surface for frictionless movement of the bones in the joint - covers & cushions the articular surfaces of bones
What are ligaments made out of:
strong cords of DFCT which grow btw bones
Where are they found? What do they do?
Fused to capsule and join bone to bone
What structure lines the inner surface of the capsule?
Synovial membrane
What is the function of the synovial membrane?
Secretes synovial fluid which lubricates & nourishes inner surface & provides nutrients to hyaline cartilage
What is the joint cavity?
Space btw articulating surfaces of two bones at a joint. Absence of tissue enables extensive movement.
Some joints contain menisci, what are they?
Made up of fibrocartilage and sit btw articulating bone ends at a joint
Differences btw hyaline & fibrocartilage:
Hyaline - more water, resists compression
Fibro- more collagen, resists tension & compression
Uniaxial occurs in:
one axis
Biaxial occurs in:
two axes
multiaxial occurs in:
three axes
