Injuries to the S1, S2, S3, S4, and S5 vertebrae in the sacral spine are less common than injuries to other areas of the spine.

The sacral spinal nerve 4 (S4) is a spinal nerve of the sacral segment. [1] It originates from the spinal column from below the 4th body of the sacrum. Sacrum, showing bodies in center. S4 supplies many muscles, either directly or through nerves originating from S4.

Apr 13, 2023 · The sacral vertebrae—also called the sacral spine—consists of five sacral vertebrae bones that fuse together to form the sacrum.

Dec 1, 2017 · Information and pictures of the spine and spinal cord showing C1 to S5 vertebra and which vertebra effect various body functions.

Sep 5, 2018 · Definition: A fracture involving the sacrum, a structure located at the base of the lumbar spine formed by the fusion of five sacral vertebrae. Mechanism. In younger adults, the mechanism is typically a high-energy trauma ; In the elderly, the mechanism can be the result of low energy falls; Epidemiology

Jul 30, 2023 · There are five pairs of sacral spinal nerves (S1-S5). The S1-S4 nerves originate from the cauda equina of the spinal cord, travel down the sacral canal, and exit via the four sacral foramina. S5 follows the same route other than it exits …

The sacral vertebra S4 (4th sacral vertebra) is part of the sacrum, which is formed by the fusion of five sacral vertebrae. The sacrum stabilizes the lumbar spine at the lumbosacral angle. The S4 vertebra is located near the caudal end of the sacrum, just above the sacrococcygeal junction.

Oct 20, 2023 · Multiple combinations of these nerves divide into the branches of the sacral plexus. The lumbosacral trunk is connected with sacral spinal nerves S1, S2, S3, and S4 to form the sacral plexus. A connection between the anterior motor root and posterior sensory root is observed at each spine level.

Nov 27, 2024 · There are 5 types of sacral spinal cord injuries: This type of injury mainly affects the hip and the groin region and extends to the fourth and pinky toes, heel, and part of the calf. If you have an S1 spinal cord injury, you also experience ankle pain.

Each spinal nerve receives a branch (gray ramus communicans) from the adjacent ganglion of the sympathetic trunk, while the thoracic, and the first and second lumbar nerves each contribute a branch (white ramus communicans) to the adjoining sympathetic ganglion.