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Smooth cartilage allows friction-less movement and this smoothness is further enhanced by body lubricants. The articular surface of the movable joint and has a smooth lining called cartilage. All the pieces join together as immovable joint and form a stable structure of the skull.īy OpenStax College – Anatomy & Physiology,, CC BY 3.0, via īefore we proceed, let us brush up the anatomy of synovial joint which will help us understanding the different types of synovial joint. Somewhat spherical in shape, our skull is actually formed by joining the pieces of bones. The best example is the joint in our skull. However, there are other joints whose purpose is to maintain the structure of the body parts by not allowing movement, they are fixed and do not take part in any kind of movement. These joints are movable joints and our body consists of more of these types of joints. Observe our body when we walk, run, jump, play sports, swim, it’s not hard to guess that all this action is due to the movement at our joint. The human body has broadly two types of joint, one is immovable joint and another is movable joint. The hip and shoulder joints are examples of ball-and-socket joints.Whenever two or more bones meet they form a joint. The end of one bone at this type of joint is rounded (ball) and fits into the cupped end (socket) of another bone.
![movable joint movable joint](https://static.javatpoint.com/blog/images/types-of-joints.png)
These joints can be found between bones of the wrist and foot, as well as between the collar bone and shoulder blade. The bones at plane joints are of similar size and the surfaces where the bones meet at the joint are nearly flat.
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Plane Joint: Bones at this type of joint slide past each other in a gliding motion.An example of a saddle joint is the thumb joint between the thumb and palm. One bone is turned inward at one end, while the other is turned outward. The bones at these joints form what looks like a rider on a saddle. Saddle Joint: These distinct joints are very flexible, allowing for bending and straightening, side-to-side, and circular movements.This type of joint can be found between the radius bone of the forearm and bones of the wrist. One of the bones has an oval-shaped, or convex, end (male surface) that fits into the depressed oval-shaped, or concave end (female surface) of another bone. Condyloid Joint: Several different types of movements are allowed by this type of joint, including bending and straightening, side-to-side, and circular movements.Examples of hinge joints include the elbow, knee, ankle, and joints between the bones of the fingers and toes. Similar to a door hinge, movement is limited to a single direction. Hinge Joint: This joint permits bending and straightening movements along one plane.It allows the head to turn from side to side. The joint between the first and second cervical vertebrae near the base of the skull is an example of a pivot joint. The bone that pivots may either rotate within the ring or the ring may rotate around the bone. One bone is encircled by a ring formed by the other bone at the joint and a ligament. Pivot Joint: This joint permits rotational movement around a single axis.This specialized joint is also called a peg and socket joint and allows for limited to no movement. A gomphosis is an exception to the rule that joints connect bone to bone, as it connects teeth to bone. Gomphosis: This type of fibrous joint holds a tooth in place in its socket in the upper and lower jaw.
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A syndesmosis can be found between the bones of the forearm (ulna and radius) and between the two long bones of the lower leg (tibia and fibula). The bones are linked by ligaments or a thick membrane (interosseous membrane).