2024年6月4日 · It's composed of three to five bony segments held in place by joints and ligaments (tissue that connects bone to bone). The tailbone helps to steady you when you sit down. The medical term for a...

The coccyx (pl.: coccyges or coccyxes), commonly referred to as the tailbone, is the final segment of the vertebral column in all apes, [1] and analogous structures in certain other mammals such as horses.

The coccyx is the last bone at the bottom (base) of your spine. It’s a small, curved bone that’s made of between three and five vertebrae fused together. Most people know the coccyx as the tailbone.

2023年4月21日 · Tailbone pain can be caused by injury to the coccyx during a fall. It may also result from sitting for a long time on a hard or narrow surface. Other causes include joint changes from arthritis or during childbirth.

2022年4月8日 · The coccyx is an inverted triangle with the base (wide part) at the top and the apex (pointy end) at the bottom. Even before the fusion of the coccyx is complete, all but the first coccygeal vertebrae are little more than underdeveloped vertebrae that look a bit like nodules of bone rather than independent structures.

The coccyx is a triangular arrangement of bone that makes up the very bottom portion of the spine below the sacrum. It is the final segment of the vertebral column and represents a vestigial tail, hence the common term tailbone.

2021年12月31日 · The coccyx is the smallest and the most inferior bone in the spinal column. It is the terminal part of the vertebral column that makes up the very bottom portion of the spine below the sacrum. It is usually composed of four vertebrae (Co1- Co4), which fuse to produce a triangular shape, resembling a shortened tail.

2025年1月6日 · What is the coccyx? The coccyx, or tailbone, is a small triangle-shaped bone derived from the fusion of four coccygeal vertebrae at the end of the vertebral column. It represents the embryonic remnant of the caudal eminence, a tail-like structure found in human development between weeks four and eight. Where is the coccyx located?

2023年10月30日 · The coccyx, otherwise known as the tailbone, is a small triangular shaped bone comprised of four fused coccygeal vertebrae. It marks the terminal point of the vertebral column and contributes to the formation of the walls of the true pelvis .

The coccyx serves as a vital insertion site for multiple soft tissues and helps with several movements and activities that involve the spine and legs to work together.