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A3 Joints GapFill

Target Level

Pass

Running Total

Attempt

1 of 3

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Synovial joints are the primary joint type used in sporting actions, due to their characteristic of being partially movablefreely movablecartilaginousfibrous. They are formed by at least two bones, known as articulating bones, and contain many structures with various functions that aid their use in sporting actions.

Components of synovial joints:

Joint corecapsulecavitymembrane – This is the structure that covers the entire joint and maintains the various internal structures.
LigamentsJoint membraneBursaArticular cartilage – This is a fluid-filled sac that constrictscushionscomfortsconstrains articulating bones to prevent friction. It is lined with synovial fluid, which is released by the synovial corecapsulecentremembrane to lubricateprotectrinsecaress the joint, further preventing friction between articulating bones.
BursaLigamentJoint cavityJoint membrane – This is a fibrous connective tissue attached between articulating bones at a joint to lubricatestabiliserinsecaress the joint and reduce the risk of dislocation.
Articular cartilageJoint cavityJoint membraneLigament – This is a smooth, elastic tissue located on the end surface of articulating bones surrounding a joint to provide padding, which adds to the prevention of friction at a synovial joint.

These structures all work together to facilitate sporting movements. There are many sporting actions that result in high forces through the body, such as the leading leg in a cricket bowl and the throwing arm of a punch in boxing. These require the various components of a synovial joint to secure the articulating bones in place as they endure the high forces involved in sporting actions. Unfortunately, there are occasions when these forces overpower the ability of the various components to maintain the internal structure of a joint, resulting in injuries, in which one or more articulating bones are forced out of their normal position. This compromises the structure of a joint and increases the risk of re-injury, as the joint becomes more susceptible.

This is your 1^st attempt! You get 3 marks for each one you get right. Good luck!

Pass Mark

72%