Oct 30, 2023 · The pudendal nerve (S2-S4) is a mixed nerve mainly in charge of the sensory and motor supply of the perineum and external genitalia in both sexes. The nerve arises in the …

Jul 8, 2023 · The plexus is formed by the anterior rami (divisions) of the sacral spinal nerves S1, S2, S3 and S4. It also receives contributions from the lumbar spinal nerves L4 and L5. In this …

Damaging either the S1, S2, S3, S4, or S5 vertebrae should leave the patient fairly functional with some issues controlling bowel and bladder function. Patients with injuries to the sacrum …

The ALCO S-2 and S-4 are 1,000-horsepower (746 kW) diesel electric switcher locomotives produced by ALCO and Canadian licensee Montreal Locomotive Works (MLW). [1] Powered …

Nov 3, 2023 · The pelvic splanchnic nerves (also called nervi erigentes) are the preganglionic parasympathetic nerve fibers that arise from the anterior rami of spinal nerves S2-S4 and …

The sacral spinal nerve 2 (S2) is a spinal nerve of the sacral segment. [1] It originates from the spinal column from below the 2nd body of the sacrum. Sacrum, showing bodies in center. S2 …

Apr 13, 2023 · S2 nerves affect the back of the thighs. S3 nerves affect the medial buttock area. S4 and S5 nerves affect the perineal area. The perineum is between the legs. It is the …

Jan 22, 2025 · The sacral plexus is a network of nerves formed by the union of the ventral rami of the L4, L5, S1, S2, S3, and a part of S4 spinal nerves. It is responsible for supplying nerves to …

Sep 5, 2018 · S1-S4 nerve roots run through the sacral foramina with S1 and S2 carrying a higher rate of injury; Rectal exam: rectal tone, perianal wink; Sensation to light touch and pinprick …

Mar 12, 2021 · A handy mnemonic to recall the branches of the sacral plexus is: