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Appendage
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Look up <i>appendage</i> in Wiktionary, the free dictionary. <p>An appendage (or outgrowth) is an external body part or natural prolongation that protrudes from an <a href="/facts/Organism/j8JkL09u">organism</a>'s body such as an arm or a leg. Protrusions from single-celled <a href="/facts/Bacteria/wC8xSCsU">bacteria</a> and <a href="/facts/Archaea/Adxh0aHw">archaea</a> are known as cell-surface appendages or surface appendages. In many kinds of <a href="/facts/Eukaryotic/SkwyPLMA">eukaryotic</a> cell the protrusions are known as <a href="/facts/Membrane_protrusion/7Q88oJJg">membrane protrusions</a> or cell appendages (examples include <a href="/facts/Microvilli/tlI7DwCh">microvilli</a> and <a href="/facts/Cilia/C9l436HM">cilia</a>). </p>