Joints Flashcards
What are the 3 types of joints
Fibrous
Cartilaginous
Synovial
Explain the properties of fibrous joints (example)
immovable and hard to damage
bones held together by fibrous connective tissue
eg skull, teeth and jaw
Explain the properties of cartilaginous joints (example)
held in place by cartilage allowing slight movement
eg pelvic junction, ribs and sternum, vertebrae
Explain the properties of synovial joints
freely moveable joints that are limited by ligaments, tedons and adjoining bones
what are the 6 types of synovial joint with example
gliding - vetebrae hinge - elbow ball/socket - pelvis saddle - wrist pivot - elbow ellipsoid - top of neck
what are the 6 structures in the synovial joint
articular capsule synovial fluid articular cartilage articular discs bursae acessory ligaments
what is the articular capsule of the synovial joint (2 inner structures)
The articular capsule surrounds and encloses the joints fibrous capsule (outer layer of connective tissue that holds bones together) Synovial Membrane (inner layers of loose connective tissue lining all cavity except cartilage)
what is the synovial fluid of the synovial joint
fluid secreted by synovial membrane that lubricates joints and provides nourishment for cells and removes debris through the presence of phagocytes
what is the articular cartilage of the synovial joint
smooth, protecting surface that aids movement
what are the articular discs of the synovial joint
the discs are fibrocartilage that extends inwards from the articular capsule dividing the cavity in two so fluid can be directed to areas of greatest friction)
what is the bursae of the synovial joint
sacs of synovial fluid, positioned to prevent friction
what are the accessory ligaments of the synovial joint
holds bones together in many joints
what is the difference between tendons and ligaments
a tendon serves to move the bone whereas a ligament provides structure and stability to bones that attach to other bones
