APCh9_Joints

Any point where bone meet, moveable or not. Type-classified by the manner in which adjacent bones are bound to each other.

The science of joint structure, function, and dysfunction

Joint formed when the space bw two bones or more bones ossify to becomes a single immoveable bone.

Example: frontal and mandibular bones, growth plates of long bones, first rib + sternum

Neighboring bones are bound together by collagen fibers (fibers emerge from one, penetrate into another)

IE: Sutures, Gomphoses, Syndemoses

Immoveable or only slightly moveable joints binding bones of the skull.

• Three Types:
• Serrate, Lap (squamous), Plane (butt)

Teeth attached to jaw bone and allows for some minor movement.

• Longer collagen fibers;
• Allow for greater motility of bones

• Distal ends of Fibula and Tibia
• Bwn shafts of Radius and Ulna

Two bones are linked together by cartilage.

• Synchondroses
• Symphyses

Bones are bound together by hyaline cartilage.

Growth plates

Bones are bound by fibrocartilage.

• Pubic Symphysis
• Bwn bodies of vertebrae

• Consists of two bones with facing surfaces covered by articular (hyaline) cartilage, separated by a joint cavity containing synovial fluid. Fluid is enclosed by a joint capsule. All is surrounded by inner synovial membrane and outer fibrous capsule.
• In some, fibrocartilage grows inward across the entire joint and forms a pad bwn the bones (articular disk).
• In some, this growth does not cross the entire joint (meniscus).

• -Albumin and Hyaluronic Acid (HLA)
• -Nourishes articular cartilage, removes waste, and reduces fricition within these joints
• -Contained within a bursa or tendon sheath.