In the video, both the levator labii superioris alaeque nasi and the levator labii superioris are palpated. The levator labii superioris alaeque nasi is palpated on the lateral side of the nose and immediately adjacent face, medial to the levator labii superioris, and superficial to the lateral part of the nasalis. The fiber direction of the levator labii superioris alaeque nasi is superomedial from the upper lip to the nose. The medial slip can help dilate the nostrils. The levator labii superioris is palpated superior to the upper lip between the levator labii superioris alaeque nasi and the levator anguli oris and has a superolateral fiber direction between the upper lip and the infraorbital region. The levator labii superioris alaeque nasi and levator labii superioris elevate the upper lip, as occurs with sneering.
These palpations demonstrate finger placement after muscle activation to allow better viewing, as well as finger placement before muscle activation. The correct technique of palpation of muscle includes the sequence of muscle activation, relaxation of the muscle, placement of the fingers on the muscle before the muscle is activated, activation of the muscle, and relaxation of the muscle.