In a selective nerve root block, a small needle is placed in the foramen alongside the nerve root and the medication is injected. When the nerves in the foramina are irritated or pinched by a bulging disk, narrowed ânerve canalâ or bone spur, the resulting inflammation can cause pain, numbness, or tingling.
The corpus luteum (Latin for yellow body; plural corpora lutea) is a temporary endocrine structure in female mammals that is involved in the production of relatively high levels of progesterone and moderate levels of estradiol and inhibin A.
endosteum (endosÂ´tÄÉm) , n a thin layer of connective tissue that lines the walls of the bone marrow cavities and haversian canals of compact bone and covers the trabeculae of cancellous bone. It has both osteogenic and hematopoietic potencies and, like the periosteum, takes an active part in the healing of fractures.ndosteum. the tissue lining the medullary cavity of a bone. cortical endosteum. endosteal lining to cortical bone; delimits the marrow cavity.