This hands on skills lab will educate the participant on MSK US scanning techniques for important upper and lower extremity nerves that are involved in entrapment neuropathies. We will teach the approach for nerve hydrodissection/nerve block techniques. The UE nerves to be identified will include: axillary, suprascapular, median, ulnar and radial. The LE nervs to be identified will include: obturator, saphenous, sciatic, peroneal and tibial.