So, here we have an example problem that asks, which of the following statements is false? And we've got these 4 potential answer options down below. Now, option a says that syndesmoses are unique and that they are the only fibrous joint that are amphiarthroses. Recall from our previous lesson videos that we've only covered 3 types of fibrous joints, and those are sutures, gomphoses, and syndesmoses. Recall that the sutures and gomphoses are classified as synarthroses, meaning that they are still or stationary joints that essentially allow for no movement.

They are immovable joints. However, the syndesmoses are the only fibrous joint in our lesson that are considered amphiarthroses. Recall that the 'a' in amphiarthroses can remind us of the 'a' in "a little movement" or the 'a' in "average movement." And so, amphiarthroses allow for a little or slight movement. Therefore, option a is true, but because option a is true, it is not the false answer option that we are looking for. For that reason, we can eliminate answer option a.

Moving on, option b says, syndesmoses are composed of loose connective tissue to allow for free movement. However, recall from our previous lesson videos that fibrous joints are usually made of dense connective tissue, usually dense irregular connective tissue, and that is the case for these syndesmoses as well. They are not made of loose connective tissue; they are made of dense irregular connective tissue. For that reason, this makes answer option b false.

And because it is false, this must mean that it is the false statement that we are looking for. So, answer option b is going to be the correct answer for this problem. We can mark it as correct. Now, let's take a look at options c and d, just to be sure. Option c says that syndesmoses are the only type of fibrous joint that can be found in the appendicular skeleton.

Recall that the other two types of fibrous joints, sutures, found in the skull, and gomphoses, found in our gums and mouth, are part of the axial skeleton. So, really, syndesmoses are the only type of fibrous joint in our lesson that can be found in the appendicular skeleton. For that reason, option c is true, and because it's true, it's not the false statement that we're looking for, so we can eliminate answer option c.

Option d says that the connecting fibers of syndesmoses are generally longer than those in sutures. Recall that in sutures, the bones of the skull are going to be really close together. So, really there's no need for the fibers to be very long if those bones are already really close together. Whereas in syndesmoses, the bones are further apart, and so longer fibers are needed, and also they tend to have more movement since they are amphiarthroses, and because they have more movement, they will need longer fibers as well. So, option d is also a true statement.

And again, because it is a true statement, it's not the false answer option that we're looking for, and we can cross it off. This here concludes this example problem, and I'll see you all in our next video.