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RIBS, STERNUM, HYOID

anatomy lab

TermDefinition
Ribs pairs extend from the anterior side of of the thoracic vertebrae and curve laterally around the trunk toward the anterior side. when curving toward the anterior, will point of be inferiorly directed
body the majority of the rib bone
head the bumpy end of the rib bone; it joins the bodies of thoracic vertebrae
neck just lateral and adjacent to the head;
tubercle laterally and distally from the neck; small bump on the posterior side of the rib. contains articular facets where the rib attaches to the bodies and transverse processes of the thoracic vertebrae
costal groove a long groove that extends down the length of the medial side of the body of the rib; also located on teh inferior side --> helps to determine if rib belongs to the right or left side
sternum contains three individual parts that articulate into one --> serves as the anterior attachment for the ribs through artilagenous structures called costal cartilages.
manubrium the most superior square shaped part of the sternum
jugular notch the small dip located on the superior end of the manubrium, along midline; located along the midline at the topo f your sternum, between the collarbones
body located in the middle of the sternum; the largest part and serves as the attachment for the costal cartilages and ribs
xiphoid process smallest part of the sternum; small and triangular shaped and located on the most inferior end of the sternum
hyoid bone the only bone in the body that does not join with another bone; the "floating bone" --> located inferior to the mandible at the top of our neck --> serves as an attachment to muscles taht form the base (floor) of our tongue as well as deeper muscles of the neck
lesser horns set of bony protrusions located more anteriorly, inside the curve of the hyoid bone
greater horns bony protrusions of the hyoid bone located more posteriorly at each end of the curve
Created by: Shannona3