00:02
Hey, welcome to a video on joints in an endoskeleton in a bony endoskeleton, such as what you have.
00:12
And really, we're just looking at two types of movable joints.
00:15
Not all your joints are movable.
00:16
You have places where there are bones fused together in your skull that are technically joints, but they don't move.
00:25
So the type of joint that allows for the greatest range of movement is called a synovial joint.
00:33
And here's a schematic picture here.
00:36
You've got two bones where they come together.
00:41
There is the green represents cartilage coating the end of the bones.
00:48
And the blue represents connected tissue that makes a capsule around the whole joint, connects both of the bones, and inside the capsule.
01:05
Is a fluid, and the fluid is called synovial fluid.
01:10
And so this is a synovial joint.
01:13
The fluid provides cushioning and protection for the ends of the bones.
01:21
Now, i don't want to make the drawing too messy.
01:23
There would be connective tissue called ligaments that also connect these bones and helps stabilize the joint.
01:34
But the movement happens when the muscles pull on the bones and cause the joint to move...
