Sacral vertebrae
There are 5 sacral vertebral bones. They are represented by the symbols S1 through S5 and are situated between the lumbar vertebrae and the coccyx (the lowest segment of the vertebral column). The sacral vertebrae are normally fused to form the sacrum.
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- Sacrococcygeal
Pertaining to both the sacrum and coccyx (the tailbone). Teratomas are often in the sacrococcygeal region in children.
- Sacroiliac joint dysfunction (SI Joint Pain)
Pain arising from abnormalities or injury of the sacroiliac (SI) joints. The SI joints connect the spine to the pelvis and are formed by the connection of the sacrum and the right and left iliac bones. The sacrum, or lower portion of the spine, is made up of five vertebrae that are fused together and […]
- Sacrum
The large heavy bone at the base of the spine, which is made up of fused sacral vertebrae. The sacrum is located in the vertebral column, between the lumbar vertebrae and the coccyx. It is roughly triangular in shape and makes up the back wall of the pelvis. The female sacrum is wider and less […]
- SAD
Seasonal affective disorder.
- Saddle gall
A sore on a horse caused by an ill-fitting saddle. Also called a saddle sore.