The spleen is a center of activity of the mononuclear phagocyte system and can be considered analogous to a large lymph node, as its absence causes a predisposition to certain infections.he spleen is a center of activity of the mononuclear phagocyte system and can be considered analogous to a large lymph node, as its absence causes a predisposition to certain infections.
The Celtic knot symbol, is also referred to as the mystic knot, or the endless knot. The more esoteric or spiritual meaning of this symbol eludes to beginnings and endings.In viewing these beautiful knots, we cannot see a beginning or and end, and therefore we are reminded of the timeless nature of our spirit.he Celtic knot symbol, is also referred to as the mystic knot, or the endless knot. The more esoteric or spiritual meaning of this symbol eludes to beginnings and endings.
Celtic Knots: History and Symbolism A large range of knots and some stylized type or knots that are used as decoration by the ancient Celts are known as Celtic knots.ymbolism and history At its most basic, the Celtic knot symbolizes the sign of the Cross. If you look closely at knots with crosses, you will find that the knots hide the crosses between the knotâs ribbons.