Sacral refers to the region of the spine located between the lumbar spine (lower back) and the coccyx (tailbone). More specifically, it describes anything pertaining to or located near the sacrum.
Here's a more detailed explanation:
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The Sacrum: The sacrum is a large, triangular bone formed by the fusion of five vertebrae (S1-S5). This fusion typically occurs between the ages of 18 and 30.
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Location: The sacrum forms the posterior (back) wall of the pelvis and sits below the lumbar spine.
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Function: It has several key functions:
- Support: It supports the spine and upper body.
- Stability: It provides a stable base for the pelvic girdle.
- Articulation: It articulates (forms a joint) with the hip bones (ilium) at the sacroiliac joints (SI joints), and with the coccyx below.
- Nerve Passage: It contains foramina (holes) through which sacral nerves pass, providing innervation to the lower extremities, bowel, and bladder.
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Sacral Region Issues: Problems in the sacral region can lead to lower back pain, sciatica (nerve pain radiating down the leg), sacroiliac joint dysfunction, and other related conditions.
In summary, "sacral" describes something related to the sacrum, a critical bone in the lower spine providing support, stability, and a pathway for nerves.
