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.
The Corpus luteum that lasts for only a part of a menstrual cycle is the corpus luteem of menstruation. It's remntants are phagocytosed by macrophages, after which fibroblasts invade the are and produce a scar of dense connective tissue, the corpus albicans.