This is a very low-power (20X) view of tissues located deep within
skeletal muscle. There are three major structures here. On the left is a
thin-walled vein. Notice its collapsed appearance. In the middle is a
thick-walled artery, which retains its circular shape. Below the artery are
some capillaries with extremely thin walls. A small nerve lies to the right.
This arrangement of nerve, artery, and vein is very common throughout the
body, and is called a neurovascular bundle.
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