What does medulla name mean?
What does medulla name mean?
Definition of medulla 1 plural medullae. a : bone marrow. b : medulla oblongata. 2a : the inner or deep part of an animal or plant structure the adrenal medulla. b : myelin sheath.
What does the root word medulla mean?
marrow
hindmost segment of the brain, 1670s, from Latin medulla, literally “marrow,” also “pith of plants,” a word of uncertain origin, but probably from PIE *smer-u- “marrow” (source also of Old Irish smiur, Welsh mer “marrow”), perhaps influenced by medius “middle.” The word was used in the Latin senses in Middle English.
What is oblongata?
: the part of the vertebrate brain that is continuous posteriorly with the spinal cord and that contains the centers controlling involuntary vital functions — see brain illustration.
What is the adjective form of medulla?
medullary (meˈdullary) or medullar (meˈdullar) adjective. Word origin. C17: from Latin: marrow, pith, probably from medius middle.
What does the medulla oblongata mean?
medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration.
Is the medulla the marrow?
The medullary cavity (medulla, innermost part) is the central cavity of bone shafts where red bone marrow and/or yellow bone marrow (adipose tissue) is stored; hence, the medullary cavity is also known as the marrow cavity.
What does medulla oblongata mean in Latin?
The medulla oblongata was named with a simple description using Latin terminology. Medulla means middle and oblongata means oblong or elongated.
What does the medulla oblongata control?
The medulla oblongata is responsible for regulating several basic functions of the autonomic nervous system, including respiration, cardiac function, vasodilation, and reflexes like vomiting, coughing, sneezing, and swallowing.
How did the medulla get its name?
In fact, its name literally translates to “little brain” from Latin. The hole in your skull that lets your spinal cord pass through is called your foramen magnum. Your medulla oblongata is located at about the same level or slightly above this hole.
What is a medullary ray?
Definition of medullary ray 1 : a primary tissue composed of radiating bands of parenchyma cells extending between the vascular bundles of herbaceous dicotyledonous stems and connecting the pith with the cortex.
Is the medulla in the cerebellum?
Your medulla oblongata looks like a rounded bulge at the end of your brain stem, or the part of your brain that connects with your spinal cord. It also lies in front of the part of your brain called the cerebellum.
What is medullary cavity?
The medullary cavity is the hollow part of bone that contains bone marrow. The bone marrow makes blood cells and stores fat. Spongy bone (also called cancellous bone) is made up of small, needle-like pieces of bone arranged like a honeycomb.
What does medulla stand for?
medulla – lower or hindmost part of the brain; continuous with spinal cord; (`bulb’ is an old term for medulla oblongata); “the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning”. medulla oblongata, bulb.
What is in the medullary cavity?
Located in the main shaft of a long bone (diaphysis) (consisting mostly of compact bone), the medullary cavity has walls composed of spongy bone (cancellous bone) and is lined with a thin, vascular membrane (endosteum). However, the medullary cavity is the area inside any bone (long, flat, etc.) that holds the bone marrow.
What does medulla mean in medical dictionary?
The inner core of certain organs or body structures,such as the marrow of bone.
What does medlure mean?
Medlure meaning An insect attractant, used to attract the medfly.
