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Types of Joints
Definition: The site where two or more bones meet.
Immovable - Fibrous joints• skull• tibia/fibula
Types of Joints
Immovable - Cartilaginous joints• Rib cage• Intervertebral discs
Types of Joints
Movable - Synovial Joints• Most joints in the body, including all joints of the limbs
Characteristics:• Articular cartilage• Joint cavity/capsule• Synovial fluid• Ligaments• Tendons
Joint Tissues
Cartilage
1. Three Types
• Hyaline
• Elastic
• Fibrocartilage
2. Functions
• Provides support
• Shock absorbance
• Provides flexibility
• Smooth movement
Joint Tissues
Cartilage
Tissue Types – Hyaline Cartilage
Functions Provides soft and smooth
covering to end of bone (articular surface)
Helps provide smooth and easy movement between bones (at joints)
Provides the starting material for new bone growth
Structure Matrix is spongy (like jello)
and evenly distributed between the cells
Cells (chrondocytes) are found in pairs within capsules called lacunae
Hyaline CartilageHyaline Cartilage
Functions Shock absorber for structures subjected to pressure (meniscus, intervertebral discs)
Structure Tough tissue with matrix of many collagenous fibers
FibrocartilageFibrocartilage
Tissue Types - Fibrocartilage
Joint Tissues
Ligaments and Tendons – Dense Connective Tissue
Tissue Types Dense Connective Tissue
Functions
Ligament- bone to bone connection, stops abnormal movement
Tendon – bone to muscle connection, creates normal movement
Structure
Tough tissue with matrix of many collagenous fibers and a fine network of elastic fibers
Dense Connective Tissue
Dense Connective Tissue
Joints Anatomy and Physiology Lab
Fetal Pig Joint