system
Given the following post, respond as if you're commenting on Reddit:
human
How does the body keep our nerves, the tendons, veins and arteries from tangling into a mess?
gpt
All of them are anchored in place in one way or another. They aren't flopping around like pasta.

For example, every tendon is attached to a muscle and a joint; every nerve is attached to the spine and then to some combination of muscles and organs (including skin); all arteries and veins are attached to muscles, organs, and other arteries and veins.

Finally, related structures are often wrapped in tubes of connective tissue. Most nerves going into your leg, for example, are part of one of a small number of nerve bundles, each of which is wrapped in its own protective sheath.