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In the human body, the lateral sacrococcygeal ligament is a bilaterally paired ligament extending between the transverse process coccyx, and the inferolateral angle of the sacrum. [1] The ligament forms a foramen for [2] [1] an anterior ramus [1] of the fifth sacral nerve (S5). [2] [1] The ligament may become ossified. [1]
The dorsal or posterior sacrococcygeal ligament has a deep and a superficial part: The deep dorsal ligament is a flat band which corresponds to the posterior longitudinal ligament (PLL) that run down inside the vertebral canal on the posterior surfaces of the bodies of the vertebrae. From the posterior side of the fifth sacral body inside the ...
The sacrotuberous and sacrospinous ligaments (also known as the extrinsic sacroiliac joint ligaments) limit the amount the sacrum flexes. The ligaments of the sacroiliac joint loosen during pregnancy due to the hormone relaxin ; this loosening, along with that of the related symphysis pubis , permits the pelvic joints to widen during the ...
The lowest fibres of gluteus maximus are attached to the posterior surface of the ligament; superficial fibres of the lower part of the ligament continue into the tendon of biceps femoris. The ligament is pierced by the coccygeal branches of the inferior gluteal artery, the perforating cutaneous nerve and filaments of the coccygeal plexus. [2]
Sacrococcygeal ligament can refer to: Anterior sacrococcygeal ligament (ligamentum sacrococcygeum anterius) Lateral sacrococcygeal ligament (ligamentum sacrococcygeum laterale) Posterior sacrococcygeal ligament (ligamentum sacrococcygeum posterius) Deep posterior of the sacrococcygeal ligament (ligamentum sacrococcygeum posterius profundum)
The ligamenta flava (sg.: ligamentum flavum, Latin for yellow ligament) are a series of ligaments that connect the ventral parts of the laminae of adjacent vertebrae. They help to preserve upright posture, preventing hyperflexion, and ensuring that the vertebral column straightens after flexion. Hypertrophy can cause spinal stenosis.
The deep dorsal sacrococcygeal ligament (ligamentum sacrococcygeum posterius profundum) is a continuation of the posterior longitudinal ligament. [1] A flat band arising inside the sacral canal, posteriorly at the orifice of the fifth sacral segment, it descends to the dorsal surface of the coccyx under its longer fellow described below. [3]
The lumbosacral ligament or lateral lumbosacral ligament is a ligament that helps to stabilise the lumbosacral joint. The ligament's medial attachment is at (the inferior border of) transverse process of lumbar vertebra L5; its lateral attachment is at the ala of sacrum .