An example of a symphysis is the
A place where two or more bones come together is a(n)
Any position where neighboring bones or bone and cartilage come together (articulate with each other) to form a bond is referred to as a joint. Joints are divided into structural and functional categories. If the adjacent bones are firmly anchored to each other by fibrous connective tissue or cartilage, or if the adjacent bones articulate with each other inside a fluid-filled area called a joint cavity, structural classifications of joints are used. The degree of movement available between the bones is defined by functional classifications, which range from immobile to slightly mobile to freely moveable joints. The functional criteria for a specific joint are linked to the amount of mobility available at that joint. As a result, immobile or slightly moveable joints protect internal organs, provide body support, and allow for minimal movement. Freely moveable joints, on the other hand, allow for much more extensive movements of the body and limbs.
Bowing the head is an example of
The skeleton is held together by joints, which enable movement. Joints can be classified in two ways. The first is by joint function, which is also known as range of motion. The material that keeps the bones of the joints together is the second way to categorize joints; this is a structure-based classification.
Skull sutures, the articulations between the teeth and the mandible, and the joint between the first pair of ribs and the sternum are examples of immovable joints (called synarthroses). The distal joint between the tibia and the fibula, as well as the pubic symphisis of the pelvic girdle, are examples of joints that allow for minor movement (called amphiarthroses). Many bone articulations in the upper and lower limbs have joints that enable complete mobility (called diarthroses). The elbow, shoulder, and ankle are examples of these.
Joints that are fibrous. Fibrous joints have thick connective tissue between the articulations, which is why most (but not all) fibrous joints are immovable (synarthroses). Fibrous joints are divided into three categories:
Which of the following joints is most movable?
A cartilaginous joint is one in which the neighboring bones are joined by cartilage, a tough yet flexible connective tissue. These joints don’t have a joint cavity and are made up of bones connected by hyaline cartilage or fibrocartilage ((Figure)). Cartilage joints are divided into two categories. A synchondrosis is a cartilaginous joint in which hyaline cartilage connects the bones. Places where bone is joined to a cartilage base, such as the anterior end of a rib and the thoracic cage’s costal cartilage, are often known as synchondrosis. A symphysis is a cartilaginous joint in which the bones are linked by fibrocartilage.
At cartilaginous joints, hyaline cartilage or fibrocartilage joins the bones to create a synchondrosis or a symphysis. (a) A synchondrosis is formed by the hyaline cartilage of the epiphyseal plate (growth plate), which connects the shaft (diaphysis) and end (epiphysis) of a long bone and enables it to develop in length. The pubic symphysis is formed when the pubic parts of the right and left hip bones of the pelvis are fused together by fibrocartilage.
Cartilaginous joints are mostly made up of cartilage (fibrocartilage or hyaline). Cartilaginous joints allow more movement between bones than fibrous joints, but they are less mobile than synovial joints. A cartilaginous joint is the one that connects the manubrium and the sternum. The growth regions of immature long bones and the intervertebral discs of the spinal column are also formed by this sort of joint.
A cartilaginous joint is called a synchondrosis or primary cartilaginous joint when the binding medium is hyaline cartilage. The first sternocostal joint is called a synchondrosis joint (where the first rib meets the sternum). The rib articulates with the sternum through the costal cartilage in this case. The synovial plane joints make up the majority of the sternocostal joints.
An epiphyseal (growth) plate is a form of temporary joint in which cartilage is converted to bone before reaching adulthood. Long bones’ epiphyses and diaphyses, the occipital and sphenoid bones’ occipital and sphenoid bones’ petrous part of the temporal bone, and the jugular process of the occipital bone’s jugular process are all examples of such joints. Each end of a long bone has an epiphyseal plate, which is a hyaline cartilage plate in the metaphysis.