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= Joints Of The Human Body =

Joints are also known as **artilcuations**. They are functional junctions between bones that make the bone growth possible. It also enables the body to move in respnse to skeletal muscle cntraction. There are three types of joints: ** Fibrous, Cartilaginous, and Synovial ** joints

__** Fibrous Joints (Synarthrotic Joints) **__ 1. ** Syndemosis ** -A sheet or bundle of fibrous tissues that connect the bones -Lies between the tibia and fibula (interosseous membrane)
 * Dense connective tissues that connect the bones
 * Between bones in close contact
 * Considered ** immovable **
 * There are three types of Fibrous Joints:[[image:12.jpg width="469" height="260" align="right"]]

2. ** Suture ** -Between flat bones (have teeth-like projections) -Thin layer of connective tissue that conect that bones -Example: Skull



3. ** Gomphosis ** -Cone shaped bony process in a socket -Example: Tooth in a jawbone



__** Cartilaginous Joints (Amphiarthrotic Joints) **__ > 1. ** Synchondrosis ** > -Bands of hyaline cartilage that unite the bones > -Between manubrium and the first rib (costal cartilages) > > > 2. ** Symphysis ** > -Pad of fibrocartilage between the bones > -Joint between bodies of adjacent vertebrae > -Example: Pubic Symphysis
 * Hyaline cartilage or fibrocartilage that connect the bones
 * Slightly ** movable **
 * There are two types of Cartilaginous Joints:

__** Synovial Joints (Diarthrotic Joints) **__ > 1. ** Uni-Axial ** > -Hinge Joint: Mostly betweenthe phalanges (Ex. Elbow Joint) > -Pivot or trochoid joint: Between atlas (C1) and the ens of axis (C2) > > 2. ** Bi-Axial ** > -Saddle or sellar joint: Between the carpal and 1st metacarpal (or thmb) > -Condylar or ellipsodial joint: Between metacarpals and phalanges or between radius and carpals > 3. ** Multi-Axial ** > -Ball and socket joint: Ex: Hip Joint, Shoulder joint -Gliding or plane joint: Between carpals, tarsals, facets of adjacent vertebrae
 * Most complex
 * ** Freely movable **
 * There are three types of Synovial Joints:

__** Video **__ media type="youtube" key="_t5_b0TVs3U" width="425" height="350"