A node (knot) is a point along a standing wave where the wave has minimal amplitude. The opposite of a node is an anti-node, a point where the amplitude of the standing wave is a maximum. These occur midway between the nodes.
about 300. In addtion it is the main drainage place both sides there are between 400 and 700 lymph nodes located along the larger lymphatic vessels, and approximately half of these nodes are in the...