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 Knot Meanings: Design Ideas and Inspiration. Like their design, Celtic knots seems to have no beginning and no end in our lives. They appear in the earliest cave art and are everywhere in our daily lives. They decorate religious objects, architecture, fashion items, furniture, book designs and business cards.