Gliding Joint: As human beings, one of our key functions is movement and locomotion. Locomotion makes us different from plants which are sedentary. Now, the process of this movement is complex. The skeletal system and the muscular system work together to accomplish it. We all know that we move due to some complex physiological systems. However, we do not know how exactly such processes work. Knowing this system is important because we might face difficulty in moving if any part of the system starts malfunctioning. Therefore, amongst various systems that form this system, we will discuss one here.
The skeletal system is integral to our movement. And, joints are very important for the functioning of it to help us in moving. Joints are the surfaces where any two bones in the body get connected or meet. So, it is extremely interesting to note how such small interfaces can significantly impact human movement. It is also important to note at the same time that trouble in any joint can hinder movement at large.
Joints are again of different types. They can be ball and socket, hinge, pivot, gliding to name a few. Each joint is responsible for a different movement depending on the shapes of the ends of the meeting bones. We will be discussing gliding joints here in particular which allows a gliding motion.
How To Define a Gliding Joint?
Gliding joints are those which exist between two bones that are totally or nearly flat at the meeting point. They are also known as planar or plane joints. These bones allow the conjoining bones movement in any planar direction. This means the bones can move left and right, up and down as well as diagonally as long as they rest on a single plane. They might rotate a little. However, it is highly restrained by the way the bones are placed and their flexibility.
Gliding joints are also present with synovial joints. It is a measure to prevent unwanted injuries as gliding joints restrain their free movement. There are synovial membranes inside the fibrous capsule which houses the joint. These in turn secrete lubricating synovial fluid to decrease friction between the bones. Ligaments along with the capsule ensure there is no dislocation of bones by sliding against each other. Finally, the cartilage acts as a cushion in gliding.
Where To Find Gliding Joint?
Such gliding joints abound in the human body. They are present in the wrists, feet, ankles, and toes. This is because they form the joints between the carpal, metacarpal, tarsal, and metatarsal bones. Hand and feet movement is possible because these joints act as flattening interfaces allowing them to glide smoothly.
The shoulder joint is also a gliding joint. However, it is an AC or acromioclavicular joint, thereby having a large and flattened clavicle. The presence of the clavicle makes the shoulders more flexible, as well as acts as a pivot for the points where the shoulders should elevate and subside.
Gliding joints are present in between the vertebrae as well. Since the vertebral column runs through the entire length of the trunk, it increases the flexibility of the axial skeleton very much. The ribs move during breathing to expand or contract the thoracic cavity. The sliding joints at the sternum and backbone bring this about in the thoracic region.
In the vertebral column, the gliding joints exist as inter-vertebral joints in between the 26 vertebrae. This allows the backbone to be upright and keep the spinal cord inside safe even when the body rotates, or stretches flex or do any other activity.
Types Of Gliding Joint
There are various ways joints can be classified. They can also be distinguished based on structural joints and functional joints. Structural joints rest on the bones which they attach and how they attach. Functional joints rest on the kind of movement that they allow between the two connecting bones. They also consider the degree of movement that they allow. All joints are generally under either of these classifications.
Gliding joints come under functional joints. They can be of different types depending on what kind of movement they facilitate. They can be
- Carpometacarpal or saddle joints which allow either flexion-extension or adduction-abduction movements.
- Hinge or elbow joints which allow a 180-degree movement, flexion, extension, as well as radial rotation.
- Planar or acromioclavicular joints which allow three different movements, even in different dimensions during the elevation of shoulders. These are internal rotation, upward rotation, as well as posterior tilting.
- Pivot or atlantoaxial joints which allow chiefly axial rotation. They also permit restricted extension and flexion but only laterally.
- Metacarpophalangeal or condyloid joints, also which allow flexion, extension, adduction, and abduction movements.
- Hip or ball and socket joints which allow extension, flexion, as well as axial rotation.
Some Examples Of a Gliding Joint
- Ankle Joints: There are many gliding joints present here. They exist between the many tarsal bones on the feet. They also function between the fibula and tibia bones present in the lower leg.
- Wrist Joints: These joints are even more abundant in the wrists. It is because the carpal bones of the wrist exist in two layers and gliding joints function between all of them. The first layer lies close to the fingers and comprises the trapezoid, trapezium, hamate, and capitate. The second layer is closer to the lower arm and consists of the lunate, triquetrum, pisiform, and scaphoid. All these are carpal bones whose complex movements are made easier with the many gliding joints.
- Zygapophyseal joints: The suppleness of the body and its movement on a whole depend heavily on these joints. They are the ones that are located to articulate the vertebrae of the spine. This allows it to function as an extremely flexible unit while also remaining very stable.
What is The Function Of Gliding Joints?
As we already know, a gliding joint is a planar joint allowing movements on a single plane. It permits three different kinds of motion-
- Linear motion
- Angular motion
- Circular motion
Linear motion would mean the smooth sliding of one bone against another. This is precisely from where the joint gets its name- to glide or to slide. Bending or stretching out would count as angular motion. The shape of the bones and their ends help greatly in these motions. They are generally flat or very gently curved. So, this helps the gliding joints to assist in different twisting, stretching, or gliding motions.
The Role of Gliding Joints in Human Health
We know movement and exercise are key to good human health. Lack of proper movement of all the muscles and bones results in different diseases. This is why gliding joints become very important in maintaining good health. Their task, like every other synovial joint, is to make the skeletal system very flexible. Hence, they give total autonomy to the free movement of various parts of the body.
Disorders of Gliding Joints
Some very common diseases and disorders exist in gliding joints. A few of them are-
Ankylosis– It is a kind of arthritis. It makes movement complicated by clashing two bones against each other over a joint.
Ankylosing spondylitis– This is an inflammation leading to arthritis. It progresses in ankylosis and hence exists in young individuals mostly.
Capsulitis– It is again an inflammation. Here the synovial membrane enclosing the fluid gets inflamed.
Dislocation– Fractures or cracks or simply displacements of bones from their original positions put enormous strain on tendons.
Neoplasms– These are cellular outgrowths that abnormally grow around the gliding joints. However, they are quite uncommon. If at all they grow, they are generally benign or non-cancerous. Cartilage, or tendons, or the membranes covering the joints extend into the growths.
However, they can be malignant or cancerous as well. It is then called synovial sarcoma. An abnormal, spreading growth of cells occurs on the synovial membrane surrounding the capsule. This generally happens due to increased friction at the joints. Young adults with large bone structures generally suffer from this.Read Also:How to Become an Aesthetician
Rheumatoid arthritis– It is again inflamed joints but here the inflammation is chronic in nature. It results in swollenness, loss of flexibility, pain, hotness at the spot as well as redness in the area because of increased blood circulation. This disorder is basically of the connective tissue. However, it has the potential to destroy the bone, the cartilage, as well as the ligaments of the affected joint.
Frequently Asked Questions About Gliding Joints Examples
1. Where do we find such joints in our body?
Ans. At a lot of places actually.
- In between tarsal and carpal bones- glide joints.
- At elbows, knees, and ankles- hinge joints.
- Atlas and axis forming a pivot joint.
- In between carpal and metacarpal of the thumb- saddle joint.
2. What are the gliding joints in the sense of the term?
Ans: The major gliding joints are the ones that only allow a gliding or a sliding movement. So the chief example of these would be the carpal and tarsal bones, as well as the acromioclavicular joints interconnecting the acromion and the clavicle.
3. What are the bones which form a gliding joint?
Ans: It depends a lot on the location of the joint. However, whichever be the bones, they must have flattened or slightly curved ends. For instance, the ankle joint connects the tarsals and the fibula, and the tibia. They also exist between the tarsal bones of the feet.
4. What movements does a gliding joint permit?
Ans: It permits any movement on a single plane. It allows linear motion between two bones sliding against each other. It also permits angular motion like twisting and bending as well as circular movements.
Some Other Questions Related to Gliding Joints
What is a Gliding Joint?
A gliding joint, also known as a plane joint, is a type of synovial joint that allows for smooth, sliding movements between the flat surfaces of adjacent bones. This joint provides limited motion in multiple directions, contributing to overall joint flexibility.
Can You Provide Examples of Gliding Joints?
Examples of gliding joints include the intercarpal and intertarsal joints in the wrist and foot, respectively, as well as the acromioclavicular joint found between the clavicle and the scapula.
What Movement Occurs at a Gliding Joint?
Gliding joints allow for smooth, sliding movements in multiple directions. The range of motion is limited, but these joints contribute to the overall flexibility of the skeletal system.
How Does a Gliding Joint Diagram Look Like?
A gliding joint diagram typically illustrates the flat articular surfaces of adjacent bones, the surrounding articular capsule, and the synovial membrane that lines the joint cavity. Additionally, the diagram may show the presence of synovial fluid within the joint, which lubricates and nourishes the joint surfaces.
What is the Function of a Gliding Joint?
The primary function of a gliding joint is to facilitate smooth, sliding movements between adjacent bones, providing limited motion in multiple directions and contributing to overall joint flexibility.
What are Some Examples of Gliding Joints in the Body?
In the human body, gliding joints can be found in the intercarpal and intertarsal joints (in the wrist and foot), the acromioclavicular joint (between the clavicle and scapula), and the zygapophyseal joints (between the articular processes of the vertebrae).
Can You Provide a Sporting Example of a Gliding Joint?
In sports, gliding joints play an essential role in activities that require wrist movements, such as tennis, golf, and gymnastics. The intercarpal joints in the wrist are responsible for the sliding motion needed for these sports.
How Would You Describe a Gliding Joint?
A gliding joint is a type of synovial joint characterized by flat, adjacent bone surfaces that allow for smooth, sliding movements in multiple directions. While the range of motion is limited, gliding joints contribute to overall joint flexibility.
What is the Meaning of a Gliding Joint in Hindi?
In Hindi, a gliding joint is referred to as फिसलने वाला जोड़ (fisalne wala jod), which translates to “sliding joint.”
What Does a Gliding Joint Mean?
A gliding joint, or plane joint, is a type of synovial joint that enables smooth, sliding movements between adjacent bones due to their flat surfaces, providing limited motion in various directions.
What is an Example of a Gliding Joint in the Human Body?
An example of a gliding joint in the human body is the intercarpal joint, located in the wrist. This joint allows for smooth, sliding movements that facilitate wrist motion.
What is a Synovial Gliding Joint?
A synovial gliding joint, also known as a plane joint, is a type of synovial joint with flat bone surfaces that slide against each other, allowing for limited movement in multiple directions.
What Movement Occurs at a Gliding Joint?
Gliding joints permit smooth, sliding movements between adjacent bones in various directions, contributing to the overall flexibility of the skeletal system.
What are Some Gliding Joints in the Body?
Gliding joints in the body include the intercarpal and intertarsal joints,