Medical Definition of Os sacrum

1. The triangular-shaped bone lying between the 5th lumbar vertebra and the coccyx (tailbone). It consists of 5 vertebrae fused together and it articulates on each side with the bones of the pelvis (ilium), forming the sacroiliac joints. (17 Dec 1997)

Os Sacrum Pictures

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Lexicographical Neighbors of Os Sacrum

os naviculare
os naviculare manus
os occipitale
os odontoideum
os orbiculare
os palatinum
os parietale
os pisiforme
os planum
os pneumaticum
os premaxillare
os pterygoideum
os pyramidale
os sacrum (current term)
os scaphoideum
os sesamoideum
os sphenoidale
os subtibiale
os suprasternale
os sylvii
os tarsi fibulare
os temporale
os tibiale posterius
os trapezium
os trapezoideum
os triangulare
os tribasilare
os trigonum

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