Sacral tuberosity
Sacral Tuberosity
Sacral Tuberosity (pronunciation: sah-kral too-beh-ros-ity) is a term used in anatomy to describe a specific part of the sacrum, which is the large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity.
Etymology
The term "sacral" originates from the Latin word "sacrum", which was originally a term for a type of Roman military shield. This is likely due to the sacrum's shield-like shape. The term "tuberosity" is derived from the Latin "tuberositas", meaning a swelling or protuberance.
Definition
The Sacral Tuberosity is a roughened area on the dorsal surface of the sacrum, where many of the posterior sacral muscles attach. These muscles play a crucial role in movement and stability of the pelvis and spine.
Related Terms
- Sacrum: The large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity.
- Pelvis: The large bony structure near the base of the spine to which the hind limbs or legs are attached in humans and many other vertebrates.
- Spine: The series of vertebrae extending from the skull to the small of the back, enclosing the spinal cord and providing support for the thorax and abdomen; the backbone.
- Dorsal Surface: The back or upper surface of an organism.
- Posterior Sacral Muscles: The muscles located at the back of the sacrum.
External links
- Medical encyclopedia article on Sacral tuberosity
- Wikipedia's article - Sacral tuberosity
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