Medulla
Encyclopedia
Medulla refers to the middle of something and derives from the Latin
word for marrow. Its anatomical uses include:
Non-medical uses of the term include:
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...
word for marrow. Its anatomical uses include:
- Medulla oblongataMedulla oblongataThe medulla oblongata is the lower half of the brainstem. In discussions of neurology and similar contexts where no ambiguity will result, it is often referred to as simply the medulla...
, a part of the brain stem - Renal medullaRenal medullaThe renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the arcuate arterioles. The arcuate arterioles each in turn branch into...
, a part of the kidney - Adrenal medullaAdrenal medullaThe adrenal medulla is part of the adrenal gland. It is located at the center of the gland, being surrounded by the adrenal cortex. It is the innermost part of the adrenal gland, consisting of cells that secrete epinephrine , norepinephrine , and a small amount of dopamine in response to...
, a part of the adrenal gland - Medulla ossea, the marrow inside a bone
- Medulla spinalis, an alternative name for the spinal cordSpinal cordThe spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the brain . The brain and spinal cord together make up the central nervous system...
- Medulla of ovaryMedulla of ovaryThe medulla of ovary is a highly vascular stroma in the center of the ovary. It forms from embryonic mesenchyme and contains blood vessels, lymphatic vessels, and nerves....
- Medulla of thymus
- Medulla of lymph nodeMedulla of lymph nodeThe medulla of lymph node, or medullary sinus, is the central portion of the lymph node.There are two named structures in the medulla:* The medullary cords are cords of lymphatic tissue, and include plasma cells, macrophages, and B cells...
- Medulla (hair)Medulla (hair)-Importance in forensics:Hair can easily be discredited as belonging to a human with the presence of medulla. Most other mammals possess one which is easily visible under a microscope. Humans of Middle-Eastern origin, however, do, in fact, possess a thin, less visible medulla...
- Medullary ray (disambiguation)
Non-medical uses of the term include:
- MedúllaMedúllaMedúlla is the sixth studio album by Icelandic singer, songwriter, and musician Björk, released on August 30, 2004 by Warner Bros. Records and One Little Indian. The title derives from the Latin word for "marrow". The album is almost entirely a cappella and constructed with human vocals...
, a 2004 music album by Icelandic singer Björk - Medulla, FloridaMedulla, FloridaMedulla is a census-designated place in Polk County, Florida, United States. The population was 6,637 at the 2000 census. It is part of the Lakeland–Winter Haven Metropolitan Statistical Area.-Geography:Medulla is located at ....
, a U.S. city - Las MédulasLas MédulasLas Médulas is a historical site near the town of Ponferrada in the region of El Bierzo , which used to be the most important gold mine in the Roman Empire...
, Ancient Roman gold mines in León, Spain - Medulla GrammaticeMedulla GrammaticeMedulla Grammatice or Medulla Grammaticae is collection of fifteenth century Latin-Middle English glossaries in the British Museum....
or Medulla Grammaticae, a fifteenth-century Latin–Middle English dictionary - In botanyBotanyBotany, plant science, or plant biology is a branch of biology that involves the scientific study of plant life. Traditionally, botany also included the study of fungi, algae and viruses...
the word pithPithPith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant. In eudicots, pith is located in the center of the stem. In monocots, it extends also into flowering stems and roots...
is loosely used as synonymous with medulla.