coccyx
Example Sentences
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The boy was fifteen, skinny, almost malnourished, so that the hip bones and coccyx stood out sharply.
From The Wall Street Journal ● Nov. 11, 2025
Following this evolutionary split, the group of apes that includes present-day humans evolved the formation of fewer tail vertebrae, giving rise to the coccyx, or tailbone.
From Science Daily ● Feb. 28, 2024
The spinal column is composed of the seven cervical vertebrae, the nine thoracic vertebra, the four lumbar vertebrae, the sacrum, and the coccyx.
From Textbooks ● Jan. 1, 2015
Similarly, the coccyx, or tailbone, results from the fusion of four small coccygeal vertebrae.
From Textbooks ● Jun. 19, 2013
In shape this part conforms to the curve of the sacrum and the coccyx, to which it is attached behind.
From Intestinal Ills Chronic Constipation, Indigestion, Autogenetic Poisons, Diarrhea, Piles, Etc. Also Auto-Infection, Auto-Intoxication, Anemia, Emaciation, Etc. Due to Proctitis and Colitis by Alcinous B. (Alcinous Burton) Jamison
They are joined at the coccyges and sacra, and the spinal columns have nearly the same axis.
From Essays In Pastoral Medicine by Austin ?Malley
The twins are joined only by the latero-posterior aspects of the sacra and coccyges, so that the two individuals are placed almost back to back.
From Essays In Pastoral Medicine by Austin ?Malley