The ligamentum nuchae lies superficial to the cervical spinous processes. It is a thick, elastic ligament that runs from the external occipital protuberance to the C7 vertebra.
The Nuchae replaces the suprasinous ligament in cervical (Cx) region of the spine. It is important for stability as the Cx support the head and has a large range of movement.
The superior attachment for the trapezius muscle is the external occipital protuberance and the nuchal ligament at the base of the skull, the ligamentum nuchae.
The ligamentum arteriosum.
ligamentum
The individual vertebrae are linked with the help of connecting tissues known as ligamentum flavum, When there is noticeable swelling due to inflammatory or degenerative changes, it is known as Ligamentum flavum thickening. A spinal MRI scan will be able to detect the swelling.
Thickened ligamentum flavum appears to be part of the process of aging. It's not a disability in and of itself. It can cause disability if it leads to symptoms.
In a newborn, the foramen ovale will close and become the fossa ovalis. The ductus arteriosus will close and become the ligamentum arteriosum. The ductus venosus will close and become the ligamentum venosum.
Ligamentum arteriosum
Ligamentum Arteriosum
Fossa ovalis and ligamentum. Fossa ovalis -> foramen lovale Ligamentum-> Ductus arteriosus
apparently it is from a skin condition called acne keloidalis nuchae. google it.