We talk about joints all the time. And I’m probably right in thinking that you’re thinking of a joint that represents the most common find in your body – the Synovial Joint. But did you know there are other types of joint too? Each with their own unique qualities. But First…
What IS a ‘Joint’?
A joint is part of the skeleton where 2 (or more) bones come together. And surprisingly not all of them allow the amount of movement you might expect.
In medical terms a joint is known as an arthrosis. Which makes it MUCH easier to understand where “Arthritis” comes from, huh!?
There are 3 types of joints. Each allowing a different amount of movement. The types are: Fibrous, Cartilaginous and Synovial.
Fibrous Joints
These are connected with what’s known as Fibrous tissue. This is a strong tissue, so it holds these joints firmly. It does contain collagen so it has a little bit of elasticity.
You find these joint in the sutures (joints) in the skull and between the 2 bones in your forearm. You also have fibrous joints holding your teeth into your jaw (so they need to be strong!).
Cartilaginous Joints
As the name suggest, these joints have cartilage in them. Cartilaginous Joints are strong, good at shock absorption and allow for just a little movement at the joint (which you might be grateful for when you learn where they are):
During childhood we have ‘temporary’ joints in our bones (known as epiphyseal plates). These cartilaginous joints allow the necessary rigidity of bones, but also an area where more bone can be laid down. Making them longer, and us taller.
Another example is the one I work on most - the joint between the bones of your spine aka your inter-vertebral joints (the discs are the cartilage!).
Lastly we come to the joint that you’re probably more familiar with:
Synovial Joints
Comments