(plural: sacra or sacrums), in human anatomy, is a large, triangular bone at the base of the spine that forms by the fusing of the sacral vertebrae (S1–S5) between ages 18 and 30.The sacrum situates at the upper, back part of the pelvic cavity, between the two wings of the ...
Criteria, the plural form ofcriterion, means 'standards of rules.' This word has origins in the Greek language.Phenomena, the plural of the Greekphenomenon, is another example of plural usage. Her uppervertebrae were crushedin the accident. The singular of the Latin-derivedvertebraeisvertebra." ...
Plural of ax Axis The second vertebra of the neck, or vertebra dentata. Axes Plural of axe Axis One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. Axes All etymologies and senses Axis The primary or secondary central line of any...
The body of each vertebra is attached to a bony ring. When the vertebrae are stacked one on top of the other, this ring creates a hollow tube through which the spinal cord passes. The intervertebral foramen is theopening between every two vertebrae where the nerve roots exit the spine. Wh...
I was not sure which were the lumbar vertebrae but I had a good guess because I wondered if they were the part of the lower back because that is where the lumbar pillows that are sold as decorative pillows sit against your back, and I was right!
Oat (n.) A well-known cereal grass (Avena sativa), and its edible grain; -- commonly used in the plural and in a collective sense. Oat (n.) A musical pipe made of oat straw. Oatcake (n.) A cake made of oatmeal. Oaten (a.) Consisting of an oat straw or stem; as, an oa...
The lumbosacral spine is that section of the backbone which lies around the level of the lower back and hips. Within the spine, an individual bone is known as a vertebra, plural vertebrae. Vertebrae are generally divided into five different types and, from the top to the bottom of the spin...
) A narrow passage; esp., a contracted part of a stream, lake, or sea; a strait connecting two bodies of water; -- usually in the plural; as, The Narrows of New York harbor. Narrowed (imp. & p. p.) of Narrow Narrowing (p. pr. & vb. n.) of Narrow Narrow (v. t.) To ...