Daphne Nur Oz (born February 17, 1986) is an author and television host. On April 14, 2011, ABC announced Oz would be one of five co-hosts on The Chew, a one-hour live talk show exploring food from all angles. The show premiered in September 2011.
Definition of Dural sac. Dural sac: The membranous sac that encases the spinal cord within the bony structure of the vertebral column. Dural refers to the dura, the name of the membrane around the spinal cord (and brain, too). Search MedTerms:
Sacrum: The sacrum is the wedge-shaped bone consisting of five fused vertebrae, the first of which has a prominent upper border known as the sacral promontory. This is an important pelvic landmark. It projects forward decreasing the anterposterior diameter of the pelvic brim. If this diameter is seriously decreased it can impair the descent of the fetal head into the pelvis. The smooth concave anterior surface is referred to as the hollow of the sacrum and the areas either side are the alae or wings. The convex posterior surface is roughened to receive attachments of muscles. The sacrum is perforated by four sets of holes or foramina through which the sacral nerves pass. Coccyx: The coccyx is at the lower part of the spine and is a vesitigal tail. It is a small triangular-shaped bone consisting of four fused vertebrae.